JP6179435B2 - Portable information code reader - Google Patents

Description

  The present invention relates to a portable information code reader.

  2. Description of the Related Art Conventionally, portable information code readers that have been provided are generally of a type in which a user performs an operation of holding the device by hand and directing the information code to read the information code. However, in such a configuration that it is essential to hold by hand, there is a problem that one hand of the user cannot be used for other work, and it is difficult to improve workability.

JP-A-8-272484 JP 2004-30014 A

  Accordingly, the inventors can read the code by attaching the case body provided with the imaging unit to the body or a wearable body (for example, an ear or a head) and pointing the imaging unit toward the code without using a hand. Inspired by composition. If comprised in this way, even if it is not always held by hand, an information code can be read, and a user's workability | operativity can be improved greatly.

  However, in the configuration that is worn on the ear or the head in this way, an unintended information code is likely to accidentally enter the imaging area, compared to a configuration in which the device is held by hand and consciously points the device at the information code. There is a problem of becoming. In such a configuration, decryption data of the information code that accidentally enters always remains, forcing the accumulation and display of unnecessary decryption data. Further, since unnecessary data is accumulated, there is a problem that the number of read information codes and the number of articles are deviated, for example, when managing articles and information codes in association with each other.

  The present invention has been made in order to solve the above-described problems, and is configured to be able to be used by being attached to a body or a body-mounted product without grasping the reading device with a hand, and desired information. It is an object of the present invention to provide a configuration that makes it easy to obtain code decryption data and easily eliminate unwanted information code decryption data.

The first invention is an imaging unit that captures an image of a predetermined imaging range;
A marker light irradiation unit that irradiates marker light toward the imaging range; and
An illumination light source that emits illumination light different from the marker light;
A case that holds at least the marker light irradiation unit, the illumination light source, and the imaging unit;
An attachment member provided integrally with the case or as a separate body from the case, and attached to a user's body or a user's wearing object;
A light source control unit that switches between a first control for driving the marker light irradiation unit without driving the illumination light source and a second control for driving the illumination light source;
A detection unit for detecting a predetermined feature pattern of an information code from a first captured image obtained by the imaging unit in a state in which the marker light is irradiated according to the first control by the light source control unit;
A processing unit that processes a second captured image obtained by the imaging unit in a state in which the illumination light is irradiated according to the second control by the light source control unit;
With
The imaging unit acquires the first captured image a plurality of times in a state where the marker light is irradiated according to the first control by the light source control unit,
The light source control unit controls the marker light irradiation unit and the illumination light source when the feature pattern is detected a predetermined number of times consecutively by the detection unit in the first captured image a plurality of times. To the second control.

In the first aspect of the present invention, the light source control unit switches between the first control for driving the marker light irradiation unit without driving the illumination light source and the second control for driving the illumination light source. Until the feature pattern is detected, detection of the feature pattern is attempted using the first captured image obtained in the state of irradiation with the marker light. After the feature pattern is detected, the illumination light source is driven. The information code is processed by the second captured image.
When the feature pattern is detected by the first captured image obtained in the state where the marker light is irradiated, there is a high possibility that the information code exists in the direction intended by the user (direction in which the reading device is directed). If such a detection result is obtained, if the second picked-up image is picked up by driving the illumination light source, the information code intended by the user can be selectively decoded, and the information is always driven by driving the illumination light source. Compared to a configuration that attempts to decode the code, it becomes easier to prevent unintentional decoding of the information code. Further, since the illumination light source is driven when there is a high possibility that an information code exists in the direction in which the reading device faces, power consumption can be effectively suppressed.
In particular, the imaging unit acquires the first captured image a plurality of times in a state in which the marker light is irradiated according to the first control by the light source control unit, and the light source control unit performs the first light imaging a plurality of times. When the feature pattern is continuously detected a predetermined number of times in one captured image by the detection unit, the first control is switched to the second control.
As described above, when the illumination light source is driven only when the feature pattern is detected a predetermined number of times in succession and the second captured image is processed, an unintended information code temporarily changes the imaging range by chance. In a case of crossing (for example, a case where a feature pattern is detected only once), it is easy to eliminate the decoding process for an unintended information code.

According to a second aspect of the present invention, the detection unit analyzes an irradiation area of the marker light in the first captured image, and detects the feature pattern from the irradiation area.
In this way, it is possible to more reliably detect whether or not the information code is present at the marker light irradiation destination, and more reliably read the information code existing at the marker light irradiation destination. Will be able to.

The invention according to claim 3 further includes a position data storage unit that stores position data indicating a position of the irradiation region of the marker light in a captured image obtained by the imaging unit, and the detection unit includes the position data storage unit The position of the marker light irradiation region in the first captured image is specified based on the position data stored in the first captured image, and the feature pattern is detected from the irradiation region in the first captured image.
In this way, when analyzing the irradiation area of the marker light in the first captured image, the position of the irradiation area of the marker light can be grasped more accurately and analyzed.

According to a fourth aspect of the present invention, the position data includes center data indicating the center position of the irradiation region and size data indicating a size centered on the center position.
In this way, the specific range of the marker light irradiation region can be understood and analyzed in more detail with simpler data.

In the invention of claim 5, the marker light irradiating unit is configured to irradiate the marker light along a central axis of an imaging range by the imaging unit, and the detecting unit detects a central part of the first captured image. The feature pattern is detected from a predetermined center area.
In this way, when analyzing the irradiation area of the marker light in the first captured image, the position of the irradiation area of the marker light can be grasped more accurately and analyzed.

In the invention of claim 6, the marker light irradiating portion includes at least one of a linear shape, a substantially rectangular shape, and a substantially circular shape in which the irradiation shape on a plane orthogonal to the irradiation direction of the marker light extends in a predetermined direction. It becomes the structure which irradiates the said marker light so that it may become.
In this way, it is easier to detect a feature pattern better for an information code that can detect a feature pattern by scanning in a predetermined direction or an information code that can detect a feature pattern by analyzing a circular area or a rectangular area. Become.

As in the invention of claim 7 , until the feature pattern is detected, the shutter speed of the image pickup unit is set to be relatively slow (long) to make the image relatively blurry, so that an undesired information code is generated. When entering the imaging range instantaneously, the characteristic pattern of the information code can be made difficult to be detected, and the information code can be made difficult to read. On the other hand, when a feature pattern is detected in the first captured image in which the image is easily blurred, it is highly likely that the user has held the device for an information code that desires the device. Therefore, according to the above configuration, the information code desired by the user can be easily read, and the information code not desired by the user can be more reliably excluded. In addition, when a feature pattern is detected in the first captured image, the second captured image that is likely to contain the intended information code is captured more clearly by setting the shutter speed to be faster (shorter). This makes it easier to read the desired information code more reliably.

In the invention according to claim 8, the setting unit is configured to return the shutter speed at the imaging unit to the first shutter speed again after the second captured image is processed by the processing unit. Yes.
According to this configuration, after the second captured image is processed, the setting can be made so that unwanted information codes can be easily excluded again by returning to the first shutter speed again. That is, every time the second captured image is processed, it is possible to return to a state in which only a desired information code can be easily selected, and reading can be performed more efficiently.

The invention according to claim 9 includes a corresponding unit that performs predetermined cancel control on the processing data obtained by processing the captured image by the processing unit when a predetermined instruction operation is performed on the portable information code reader.
According to this configuration, when a captured image of an undesired information code is processed, or when processing possibility is high, processing data obtained by processing the captured image can be canceled. The configuration is such that only the code processing data remains.

According to a tenth aspect of the present invention, the processing unit obtains the decoding unit that decodes the captured image obtained by the imaging unit and the decoding unit until a predetermined time elapses after decoding the captured image by the decoding unit. A transmission unit that stops transmission of the decrypted data and transmits the decrypted data to an external device provided outside the portable information code reader after the lapse of the predetermined time. The corresponding unit receives the decoded data when the predetermined instruction operation is performed on the portable information code reader before the fixed time has elapsed after the decoded image is decoded by the decoding unit. A process of deleting or invalidating is performed, and the transmitting unit is configured not to perform a process of transmitting the decrypted data to the external device when the decrypted data is deleted or invalidated by the corresponding unit.
According to this configuration, while realizing a configuration capable of transmitting data obtained by decoding an information code to an external device, it becomes easy to stop transmission of decoded data of the information code when an undesired information code is decoded. . Therefore, in the external device, it becomes easy to obtain only decoded data of the information code desired by the user.

An eleventh aspect of the invention includes a setting data storage unit that stores the value of the predetermined time, and the transmission unit stops transmission of the decrypted data based on the data stored in the setting data storage unit. The value of the predetermined time stored in the setting data storage unit can be changed.
According to this configuration, the user can arbitrarily set and change the time (fixed time) that can be canceled in the apparatus, and the convenience is further improved.

According to a twelfth aspect of the present invention, the corresponding unit performs the cancel control when a predetermined dedicated code is read by the portable information code reading device.
According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading the dedicated code by the portable information code reader. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible.

According to a thirteenth aspect of the present invention, an operation switch that can be operated from the outside is provided, and the corresponding unit is configured to perform the cancel control when a predetermined external operation is performed on the operation switch. ing.
According to this configuration, the user can cancel the existing processing data by performing a simple operation of operating the operation switch.

According to a fourteenth aspect of the present invention, the corresponding unit is processed by the processing unit when an already-read code that has already been read by the portable information code reader is read again by the portable information code reader. In addition, a process for deleting or invalidating the processing data of the read code is performed.
According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading the read code with the portable information code reader. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. In addition, since the processing data to be canceled can be specifically designated and cancelled, unnecessary data can be reliably selected and canceled when there are a plurality of processing data.

According to a fifteenth aspect of the present invention, an operation switch that can be operated from the outside is provided, and the corresponding unit has already been read by the portable information code reader while a predetermined external operation is being performed on the operation switch. When the read code being read is read again by the portable information code reader, the processing data of the read code processed by the processing unit is deleted or invalidated. Yes.
According to this configuration, when a plurality of processing data exists, unnecessary data can be reliably selected and canceled. In addition, since the operation of the operation switch is set as a cancellation condition, it is easy to prevent erroneous processing data that is not desired to be canceled.

In the invention of claim 16, when the corresponding data is generated by the processing unit when the information code included in the captured image obtained by the imaging unit has a predetermined first imaging posture. Then, when the information code is read by the imaging unit in a second imaging posture whose direction differs from the first imaging posture by a predetermined angle or more, the cancel control is performed on the processing data. .
According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading the information code by the portable information code reader. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. In addition, since cancel control is performed when the processing unit reads the image in a second imaging posture different from the processing target posture (first imaging posture), the user cancels with a simple change “change the reading posture”. Is possible.

In the invention of claim 17, when the processing data is generated by the processing unit and the information code is continuously imaged by the imaging unit for a predetermined time or longer, the corresponding unit responds to the processing data. The cancel control is performed.
According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading the information code by the portable information code reader. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. Furthermore, reading at the time of cancellation can be distinguished from normal reading by a simple response that the reading device is directed to the information code for a certain length of time.

In the invention of claim 18, the corresponding unit is configured so that the read code that has already been read by the portable information code reader does not deviate from the imaging range of the imaging unit at least from the time of reading the read code. When the predetermined relative movement state is reached within the imaging range, the processing data of the read code processed by the processing unit is deleted or invalidated.
In this configuration, when it is desired to delete or invalidate the processing data of any information code, after reading the information code, a predetermined relative movement state is set within the imaging range without being removed from the imaging range of the imaging unit. Good. As described above, the processing data of the information code can be easily deleted or invalidated by a simple response that the information code desired to be canceled is set in a predetermined relative movement state.

According to a nineteenth aspect of the present invention, the corresponding unit is configured to move the read code to a predetermined position within the imaging range without departing from the imaging range of the imaging unit from at least the reading time of the read code. In addition, the processing for deleting or invalidating the processing data of the read code is performed.
In this configuration, when the processing data of any information code is to be deleted or invalidated, after reading the information code, it is only necessary to move it to a predetermined position within the imaging range without being removed from the imaging range of the imaging unit. . As described above, the processing data of the information code can be easily deleted or invalidated by an extremely simple response of moving the information code desired to be canceled to a predetermined position.

In the invention of claim 20, the corresponding unit is configured to read the already-read code that has already been read by the portable information code reading device when at least a predetermined position change history has been obtained since the read code was read. The processing for deleting or invalidating the processing data of the reading code is performed.
In this configuration, when it is desired to delete or invalidate the processing data of any information code, a predetermined position change may be made after reading the information code. As described above, the processing data of the information code can be easily deleted or invalidated by a simple response of changing the predetermined position with respect to the information code desired to be canceled.

In a twenty-first aspect of the invention, the corresponding unit is configured so that an already-read code that has already been read by the portable information code reader does not deviate from the imaging range of the imaging unit at least from the time of reading the already-read code. When a predetermined size change state occurs within the imaging range, the processing data of the read code processed by the processing unit is deleted or invalidated.
In this configuration, when the processing data of any information code is to be deleted or invalidated, after the information code is read, the distance between the information code and the reading device is adjusted so as not to be out of the imaging range of the imaging unit. A predetermined size change may be made within the imaging range. In this way, the processing data of the information code can be easily deleted or invalidated by an extremely simple response of adjusting the distance from the information code desired to be canceled. In addition, since it is a condition that the distance from the information code is adjusted, there is no need to move the reader largely laterally with respect to the information code during the cancel operation, and the information code is not removed from the imaging range. Easy to maintain.

According to a twenty-second aspect of the present invention, the corresponding unit is configured so that the read code that has already been read by the portable information code reading device does not deviate from the imaging range of the imaging unit from at least the read time of the read code. When the predetermined external state is reached within the imaging range, the processing data of the read code processed by the processing unit is deleted or invalidated.
In this configuration, when it is desired to delete or invalidate the processing data of any information code, after reading the information code, the orientation of the reading device with respect to the information code is adjusted, and the data is not removed from the imaging range of the imaging unit. What is necessary is just to make a predetermined external shape change within the imaging range. In this way, the processing data of the information code can be easily deleted or invalidated by a very simple response of adjusting the direction with respect to the information code desired to be canceled. In addition, since it is necessary to adjust the orientation with respect to the information code, it is not necessary to move the reader largely laterally with respect to the information code during the cancel operation, and the state where the information code is not removed from the imaging range is maintained. It becomes easy to do.

According to a twenty-third aspect of the present invention, the corresponding unit is configured such that the information code processed by the processing unit does not exist in the imaging range of the imaging unit, and the information code enters the imaging range after it does not exist. In this case, the cancel control is performed on the processing data.
In this configuration, when the user wants to perform cancel control for any information code, a simple operation of removing the information code from the imaging range and entering the imaging range again can be performed. Processing data can be easily canceled. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible.

According to a twenty-fourth aspect of the present invention, the corresponding unit is configured such that the information code processed by the processing unit does not exist in the imaging range of the imaging unit, and the information code is included in the imaging range within a certain time after the information code does not exist. When entering, the cancellation control is performed on the processing data.
According to this configuration, the user can cancel the existing processing data by performing a simple operation of once removing the processed information code from the imaging range and reentering the imaging range within a predetermined time. It becomes like this. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible.

In the invention of claim 25, the corresponding unit is configured such that the information code processed by the processing unit does not exist in the imaging range of the imaging unit, and the information code does not exist in the imaging range after it disappears. When read at a predetermined position, the cancel control for the processing data is performed.
In this configuration, the user can cancel the existing processing data by performing a simple operation of once removing the processed information code from the imaging range and placing it at a predetermined position. Further, since it is a condition for cancellation to be read at a predetermined position after deviating from the imaging range, cancellation is not performed unless such an operation is performed. That is, accidental cancellation due to unconscious movement can be effectively suppressed.

According to a twenty-sixth aspect of the present invention, a marker light irradiating unit that irradiates marker light is provided, and the boundary of the visual field range or the boundary of a predetermined area within the visual field range is specified by the marker light irradiating unit.
In this configuration, since the boundary of the visual field range or the boundary of a predetermined area within the visual field range can be visually confirmed, it becomes easy to perform a cancel operation based on the visual field range.

In a twenty-seventh aspect of the present invention, the correspondence unit performs the cancel control on the processing data when a plurality of codes are simultaneously captured by the imaging unit after the processing data is generated by the processing unit. It has become.
According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading a plurality of codes by the portable information code reader. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. Furthermore, reading at the time of cancellation can be distinguished from normal reading by a simple correspondence of imaging a plurality of codes simultaneously.

In the invention of claim 28, when the processing data is generated by the processing unit, the corresponding unit captures a plurality of codes simultaneously by the portable information code reader and reads the plurality of codes. In addition, the cancel control is performed on the processing data corresponding to the plurality of codes.
According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading a plurality of codes by the portable information code reader. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. In addition, reading at the time of cancellation can be distinguished from normal reading by a simple response of imaging a plurality of codes simultaneously. Furthermore, since a plurality of processing data desired to be canceled can be reliably specified and canceled at once, the convenience is very high.

In a twenty-ninth aspect of the present invention, the corresponding unit is configured to perform the cancel control on the processing data on condition that the plurality of codes are imaged in a predetermined arrangement.
In this configuration, since a condition for cancellation is that a plurality of codes are imaged in a predetermined arrangement, a plurality of codes are not canceled even if they are imaged outside the predetermined arrangement. Accordingly, it is possible to easily cancel the processing data that the user does not want to cancel, while making it possible to easily cancel it by the same action (code reading operation) as in normal reading.

FIG. 1 is a perspective view schematically illustrating a portable information code reader according to the first embodiment. FIG. 2 is a block diagram schematically illustrating an electrical configuration of the portable information code reader of FIG. FIG. 3 is an explanatory diagram showing a usage state of the portable information code reader of FIG. FIG. 4 is a flowchart illustrating the flow of reading processing in the portable information code reading device of FIG. FIG. 5 is an explanatory diagram conceptually illustrating a captured image when the QR code (registered trademark) is within the imaging range. FIG. 6 is an explanatory diagram conceptually illustrating a captured image when the barcode is in the imaging range, regarding an example in which marker light in an irradiation area different from that in FIG. 5 is irradiated. FIG. 7 is an explanatory diagram conceptually illustrating a captured image when the barcode is in the imaging range with respect to the example of the marker light in FIG. 6. FIG. 8 is an explanatory diagram illustrating some examples of irradiation shapes when marker light is irradiated onto a plane. FIG. 9 is an explanatory diagram illustrating the relationship between the imaging range by the imaging unit and the irradiation direction of the marker light. FIG. 10 is a flowchart illustrating the flow of reading processing in the portable information code reading device according to the second embodiment. FIG. 11 is an explanatory diagram for explaining the flow of a cancel operation when using the portable information code reader according to the third embodiment. FIG. 12 is an explanatory diagram for explaining the flow of a cancel operation when using the portable information code reader according to the fourth embodiment. FIG. 13 is an explanatory diagram illustrating the flow of a cancel operation when using the portable information code reading device according to the fifth embodiment. FIG. 14 is a flowchart illustrating the flow of cancel processing in the portable information code reading device according to the sixth embodiment. FIG. 15A is an explanatory diagram illustrating the relationship between the boundary of the captured image and the code image when the information code to be canceled is read in the portable information code reader according to the sixth embodiment. (B) is explanatory drawing which shows the relationship between the boundary of the captured image, and a code image when it relatively moves for cancellation. FIG. 16 is a flowchart illustrating the flow of a cancel process in the portable information code reader according to the modification of the sixth embodiment. FIG. 17A is an explanatory diagram illustrating the relationship between the boundary of the captured image and the code image when the information code to be canceled is read in the portable information code reader according to the modification of the sixth embodiment. FIGS. 17B and 17C are explanatory diagrams illustrating the relationship between the boundary of the captured image and the code image when the relative movement is performed for cancellation. FIG. 18A is an explanatory diagram illustrating a relationship between an information code and a visual field range when an information code to be canceled is read in the portable information code reader according to the modification of the sixth embodiment. FIG. 18B is an explanatory diagram showing the relationship between the information code and the visual field range when they are relatively moved for cancellation. FIG. 19 is a flowchart illustrating the flow of cancel processing in the portable information code reading device according to the modification of the seventh embodiment. FIG. 20A is an explanatory diagram illustrating the relationship between the boundary of the captured image and the code image when the information code to be canceled is read in the portable information code reader according to the modification of the seventh embodiment. FIG. 20B is an explanatory diagram conceptually showing the relationship between the boundary of the captured image and the code image when the information code is once removed from the field-of-view range, and FIG. It is explanatory drawing which shows notionally the relationship between the boundary of the captured image when it returns to the predetermined position of a range, and a code image. FIG. 21 is a flowchart illustrating the flow of cancel processing in the portable information code reader according to the eighth embodiment. FIG. 22A is an explanatory diagram illustrating the relationship between the boundary of the captured image and the code image when the information code to be canceled is read in the portable information code reader according to the eighth embodiment. (B) is explanatory drawing which shows the relationship between the boundary of a captured image, and a code image when a size change (operation | movement which releases | separates an information code relatively) is made for cancellation. FIG. 23 is a flowchart illustrating the flow of a cancel process in the portable information code reader according to the ninth embodiment. FIG. 24A is an explanatory diagram illustrating the relationship between the boundary of the captured image and the code image when the information code to be canceled is read in the portable information code reader according to the ninth embodiment. (B) is explanatory drawing which shows the relationship between the boundary of a captured image, and a code image when shape change (operation | movement which inclines an information code relatively) is made for cancellation. FIG. 25 is an explanatory diagram illustrating a state in which the portable information code reading device according to the tenth embodiment is used. FIG. 26 is a perspective view schematically illustrating a portable information code reading device according to the tenth embodiment. FIG. 27 is a perspective view of the portable information code reader according to the tenth embodiment as viewed from a direction different from FIG. FIG. 28 is a perspective view of the portable information code reader according to the tenth embodiment as seen from a direction different from FIGS. FIG. 29 is a perspective view of the portable information code reader according to the tenth embodiment as seen from a direction different from that in FIGS. FIG. 30 is a perspective view illustrating a state in which the apparatus main body is mounted on the left mounting portion in the portable information code reader according to the tenth embodiment. FIG. 31 is an explanatory diagram illustrating the vicinity of the user's face on which the portable information code reader according to the tenth embodiment is mounted. 32 is a perspective view showing a state in which the apparatus main body and the holding member are disassembled from the configuration of FIG. FIG. 33 is a perspective view schematically showing a state in which the case is removed from the attachment portion in the portable information code reader according to the tenth embodiment. FIG. 34 is a perspective view illustrating an attachment portion that is a part of the portable information code reader according to the tenth embodiment. FIG. 35 is a side view illustrating a device main body which is a part of the portable information code reading device according to the tenth embodiment. FIG. 36 is a side view of the apparatus main body and the holding member, which are a part of the portable information code reader according to the tenth embodiment, viewed from the opposite direction to FIG. FIG. 37 is a diagram of components housed in the case as viewed from the front side of the case, and is a diagram illustrating the configuration of an imaging unit, a lens, and the like housed in the case. FIG. 38 is an explanatory diagram for explaining how to attach the attachment member to the user. FIG. 39 is an explanatory view showing a state in which the attachment member is attached to the user from the front side of the user's face. FIG. 40 is an explanatory diagram illustrating an example in which the apparatus main body is detached from the attachment member and used.

[First embodiment]
Hereinafter, a first embodiment embodying the present invention will be described with reference to the drawings.
(overall structure)
A portable information code reader 10 according to the first embodiment (hereinafter also simply referred to as an information code reader 10 or a reader 10) has an appearance as shown in FIG. The reading apparatus 10 includes an imaging unit 23 that captures an image in a predetermined imaging range AR (see FIG. 9), and a processing unit (control circuit 40 (FIG. 2)) that processes a captured image obtained by the imaging unit 23. The marker light irradiation unit 50 that irradiates the marker light Mk (FIG. 2) toward the imaging range AR (see FIG. 9) of the imaging unit 23, and the illumination light Lf (FIG. 2) different from the marker light Mk (FIG. 2) The illumination light source 21 which irradiates is provided. Furthermore, the case 12 that holds the marker light irradiation unit 50, the illumination light source 21, the imaging unit 23, and the like is provided integrally with the case 12 or as a separate body from the case 12, and the user's body or the user's wearing items. And an attachment member 60 to be attached.

  First, the electrical configuration of the information code reader 10 will be described. As shown in FIG. 2, the information code reader 10 is configured as a code reader capable of reading an information code 100 (FIG. 2) such as a one-dimensional code or a two-dimensional code in terms of hardware. An outer case of the apparatus main body 11 is constituted by the case 12 shown, and various electronic components are accommodated in the case 12.

  As shown in FIG. 2, the information code reader 10 mainly includes an illumination light source 21, a marker light irradiation unit 50, an imaging unit 23, a filter 25, an imaging lens 27, and other optical systems, a memory 35, and a control circuit 40. And a microcomputer (hereinafter referred to as “microcomputer”) system such as an operation switch 42 and a power system such as a power switch 41 and a battery 49. These are mounted on a printed wiring board (not shown) or housed in a case.

  The optical system includes an illumination light source 21, an imaging unit 23, a filter 25, an imaging lens 27, a marker light irradiation unit 50, and the like. The illumination light source 21 functions as an illumination light source capable of emitting illumination light Lf, and includes, for example, a red LED and a diffusion lens, a condensing lens, and the like provided on the emission side of the LED. In the present embodiment, the illumination light Lf can be irradiated toward the reading object R through an irradiation port formed in the case. As the reading object R, for example, various objects such as a resin material and a metal material can be considered, and an information code 100 as shown in FIG. 2 is formed on the reading object R by printing or the like. Note that the type of the information code 100 to be read may be a one-dimensional code such as a bar code, or may be a two-dimensional code such as a QR code (registered trademark), a data matrix coat, or a maxi code. Moreover, the marker light irradiation part 50 is comprised by well-known marker light sources, such as LED and a laser light source, etc., and the marker light Mk (FIG. 2). Specifically, as shown in FIG. 9, the marker light Mk (FIG. 2) is irradiated toward a range (imaging range AR) that can be imaged by the imaging unit 23. In FIG. 9, the optical axis (center axis) of the marker light Mk irradiated by the marker light irradiation unit 50 is conceptually indicated by a one-dot chain line Mk1.

  The imaging unit 23 shown in FIG. 2 and the like is configured by a light receiving sensor (for example, an area sensor in which light receiving elements such as a C-MOS and a CCD are two-dimensionally arranged) that can image the information code 100, and the reading object R and the like. The reflected light Lr irradiated and reflected on the information code 100 can be received. The imaging unit 23 is arranged so that incident light incident through the imaging lens 27 can be received by the light receiving surface 23a. As shown in FIG. 9, the imaging unit 23 has a predetermined imaging range AR set outside the case 12. It is the structure which images an image.

  The filter 25 is an optical low-pass filter that allows passage of light that is less than or equal to the wavelength of the reflected light Lr, for example, and can block passage of light that exceeds the wavelength, and is connected to the reading port 14 formed in the case 12. It is provided between the image lens 27. Thereby, unnecessary light exceeding the wavelength equivalent of the reflected light Lr is prevented from entering the imaging unit 23.

  The imaging lens 27 is constituted by, for example, a lens barrel and a plurality of condensing lenses accommodated in the lens barrel. In this configuration, the reading port 14 (FIGS. 3 and 5) formed in the case 12 is used. And the like, the reflected light Lr incident thereon is condensed and a code image of the information code 100 is formed on the light receiving surface 23a of the imaging unit 23.

  The microcomputer system includes an amplification circuit 31, an A / D conversion circuit 33, a memory 35, an address generation circuit 36, a synchronization signal generation circuit 38, a control circuit 40, an operation switch 42, a microphone 43, a sound generation unit 44, a sensor unit 46, and a communication unit. It consists of 48 grades. This microcomputer system is configured around a control circuit 40 and a memory 35 that can function as a microcomputer (information processing apparatus), and the image signal of the information code 100 captured by the optical system described above is signaled in hardware and software. It can be processed.

  An image signal (analog signal) output from the image pickup unit 23 of the optical system is input to the amplification circuit 31 and amplified by a predetermined gain, and then input to the A / D conversion circuit 33, and the analog signal is converted into a digital signal. Is converted to The digitized image signal, that is, image data (image information) is input to the memory 35 and stored in the image data storage area of the memory 35. The synchronization signal generation circuit 38 is configured to be able to generate a synchronization signal for the imaging unit 23 and the address generation circuit 36. The address generation circuit 36 is based on the synchronization signal supplied from the synchronization signal generation circuit 38. Thus, the storage address of the image data stored in the memory 35 can be generated.

  The memory 35 is composed of a known semiconductor memory device or the like, and corresponds to, for example, a RAM, a ROM, a nonvolatile memory, or the like. For example, in the RAM of the memory 35, in addition to the above-described image data storage area, a work area and a reading condition table used by the control circuit 40 in each processing such as arithmetic operation and logical operation can be secured. Yes. The ROM stores in advance a predetermined program that can execute a reading process, which will be described later, and a system program that can control each hardware such as the illumination light source 21 and the imaging unit 23.

  The control circuit 40 is a microcomputer capable of controlling the entire information code reader 10, and includes a CPU, a system bus, an input / output interface, and the like, and has an information processing function. Various input / output devices (peripheral devices) are connected to the control circuit 40 via a built-in input / output interface. In the case of this configuration, the power switch 41, the operation switch 42, the microphone 43, and the sound generation unit 44 are connected. The sensor unit 46, the communication unit 48, and the like are connected. The communication unit 48 is configured as a known communication interface that performs wired communication or wireless communication, and communicates with an external device provided outside the case 12 to transmit information to the external device or from the external device. It functions to receive information.

  In the example of FIG. 2, a computer HST (a stationary personal computer, a portable personal computer, or the like) corresponding to the host system of the information code reader 10 is illustrated as the “external device”. Is connected to such an external device in a wired or wireless manner (for example, known wireless LAN communication or bluetooth (registered trademark) communication). The external device is not limited to such an example of a personal computer, and any information processing device that is disposed outside the information code reader 10 and can communicate with the information code reader 10 can be used. It may be a simple configuration. Further, the communication unit 48 cooperates with the control circuit 40 and functions as a “transmission unit”. For example, after the information code 100 is decoded, after a predetermined time has elapsed, the decoded data obtained by decoding the information code 100 is “ Function to send to "external device".

  The power supply system includes a power switch 41, a battery 49, and the like. When the power switch 41 managed by the control circuit 40 is turned on and off, the conduction of the drive voltage supplied from the battery 49 to each device and each circuit described above is established. Or shut off is controlled. The battery 49 is a secondary battery that can generate a predetermined DC voltage, and corresponds to, for example, a lithium ion battery.

(Mounting structure etc.)
Next, the mounting structure of the portable information code reader 10 will be described.
The portable information code reading device 10 is mainly composed of a device main body 11 and an attachment member 60. The apparatus main body 11 includes an imaging unit 23 capable of imaging the information code 100, a processing unit (control circuit 40 (FIG. 2), an imaging unit 23, and a processing unit that processes an image of the information code 100 captured by the imaging unit 23. The mounting member 60 is provided as a separate body from the case 12, and is a flexible body mounting portion (mounting portion) 62 that can be flexibly deformed. The case 12 includes an attachment portion 66 to which the case 12 is attached / detached, and the attachment / detachment structure between the attachment portion 66 and the case 12 is a structure in which the case 12 is attached to the attachment portion 66 by a fastening member such as a screw. The engaging part (for example, fitting part, such as a convex part) formed in case 12 may engage with the to-be-engaged part (for example, fitting part, such as a recessed part) formed in attachment part 66. In the configuration that can be installed in Alternatively, it may be configured to be attached by an attractive force between a magnet fixed to one of the case 12 or the attachment portion 66 and a magnetic body (metal member or magnet) fixed to the other. Here, an example in which the case 12 and the attachment member 60 are configured as separate bodies is shown, but the case 12 and the attachment member 60 may be connected to each other, and may be integrally formed, for example. .

  The apparatus main body 11 shown in FIG. 1 and the like is configured such that various electronic components shown in FIG. 2 are accommodated in a case 12, and can be attached to an attachment member 60 as shown in FIG. Further, it can be removed from the mounting member 60. The case 12 that forms the outer shell of the apparatus main body 11 is formed in a longitudinal shape and a box shape as a whole. In this configuration, the front-rear direction, the width direction (lateral direction), and the vertical direction of the apparatus main body 11 are defined as follows. First, the direction of the center of the field of view of the imaging unit 23 (the direction of the optical axis G shown in FIG. 9) is the front-rear direction, and the longitudinal direction of the case 12 is the front-rear direction. And the thickness direction of case 12 is the width direction (lateral direction) in the direction orthogonal to the front-back direction. And the direction orthogonal to the said front-back direction and the width direction is the up-down direction.

  The case 12 has a front wall portion 13c at the front end portion and a rear wall portion 13d at the rear end portion. Further, a side wall portion is provided on one side (the mounting member 60 side) in the width direction (left and right direction), and a side wall portion 13a is provided on the opposite side. Furthermore, the upper wall part 13e is provided in an upper end part, and the lower wall part facing the upper wall part 13e is provided in the lower end part. And the storage part which stores electronic parts, such as an image pick-up part and a control circuit, is a box-like composition enclosed by these front wall part, rear wall part, side wall part, upper wall part, and lower wall part in front and rear, right and left, and up and down. It is configured.

  In the following, as shown in FIG. 3, the direction in which the face Fa faces with respect to the face Fa of the user P will be described as the front side of the face Fa and the occipital side will be described as the back side of the face Fa.

  As shown in FIGS. 1, 3, and 5, the front wall 13c provided at the front end of the case 12 is provided with a reading port 14 through which light from the information code can be introduced. The mounting member 60 has a structure that can be hung on both ears of the user P during use, for example, and the case 12 is arranged in a lateral position of the face Fa of the user P as shown in FIG. It is the structure which attaches the said case 12 to the user's P ear Ey with the structure which faces the user's P front side. As described above, the case 12 is attached by the attachment member 60 so that the imaging unit 23 faces the same side as the face Fa of the user P.

  As shown in FIG. 1, an operation switch 42 capable of external operation (for example, pressing operation from the upper side to the lower side) is provided on the upper wall portion 13 e of the case 12. Further, as shown in FIG. 2, an illumination light source 21 that emits illumination light and a marker light irradiation unit 50 that emits marker light are provided inside the case 12, and illumination light Lf and marker light from the illumination light source 21 are provided. Any of the marker lights Mk from the irradiation unit 50 is irradiated to the front side of the case 12 from the front wall 13c.

  The mounting member 60 includes a flexible body mounting portion 62 that can be bent and deformed, a mounting portion 66 to which the case 12 is attached and detached, and a base portion 65 that supports the body mounting portion 62, and is separate from the case 12. It is provided as. As shown in FIG. 3, the attachment member 60 is configured to attach the case 12 to the ear Ey of the user P so that the reading port 14 faces to the side where the face Fa of the user P faces.

  As shown in FIG. 3, the body wearing part 62 is configured as an ear hooking part that is hung on both ears of the user P, and as shown in FIG. 1, the body wearing part 62 is maintained in a predetermined shape in a natural state when worn. And is configured to be elastically deformable. The body mounting portion 62 has a configuration extending from the base portion 65 and has a U-shaped configuration as a whole. The body mounting portion 62 includes a right ear hook 62a that is curved so as to protrude upward, and a left ear hook that is formed away from the right ear hook 62a and is curved so as to protrude upward. And a connecting portion 62c that connects the right ear hooking portion 62a and the left ear hooking portion 62b. The connecting portion 62c is a portion that wraps around the user's back head or neck when the mounting member 60 is mounted on the user's ear as shown in FIG.

  The base portion 65 is connected to the back surface side (the surface opposite to the mounting wall portion 66a) in the vicinity of the longitudinal center portion of the mounting portion 66 configured in a longitudinal shape, and protrudes from the back surface side of the mounting portion 66. ing. The body mounting portion 62 is curved and formed so as to extend from the peripheral wall portion of the base portion 65 as a starting point.

  The attachment portion 66 is configured in a plate shape as a whole, and the base portion 65 is connected to one plate surface side, and the case 12 is detachably connected to the other plate surface side. A wall portion on the plate surface side to which the case 12 is connected is configured as an attachment wall portion 66a, and the case 12 can be attached to and detached from the attachment wall portion 66a.

(Reading process)
Next, a reading process executed by the reading device 10 will be described.
In the reading apparatus 10, the reading process shown in FIG. 4 is executed by the control circuit 40 when a predetermined start condition is satisfied (for example, when the power is turned on or when a predetermined pressing operation is performed on the operation switch 42). During the execution of the reading process of FIG. 4, the information code reading process can be continuously performed.

  The reading process shown in FIG. 4 is executed in response to establishment of a predetermined start condition. After the start of execution, the marker light irradiation unit 50 is first operated to irradiate the marker light Mk (S1). In the process of S1, the illumination light source 21 is not operated and the illumination light Lf is not irradiated. In this configuration, after the irradiation of the marker light Mk in S1, the illumination light Lf is not irradiated until the irradiation of the illumination light Lf is started in S13.

  After the processing of S1, the shutter speed in the image pickup unit 23 is set to a first shutter speed that is relatively slower (longer) than a second shutter speed described later (S2). That is, in S2, the setting of the exposure time when imaging by the imaging unit 23 is set longer than the exposure time set in S12 described later. Then, the imaging range is imaged by the imaging unit 23 with the shutter speed of the imaging unit 23 set to the first shutter speed in this way (S3). Thereby, a captured image (first captured image) by the imaging unit 23 in a state where the first shutter speed is set is generated.

Then, a “feature detection area” in the captured image (first captured image) obtained in S3 is calculated.
As a first example of the method of specifying the area in S3, for example, as shown in FIG. 5, the captured image (first captured image) obtained in S3 is analyzed, and the marker light Mk is extracted from the first captured image. What is necessary is just to specify the irradiation area ARm. Then, the marker light irradiation area ARm may be set as a “feature detection area”. Specifically, for example, in the first captured image, a region (region ARm) having a light reception amount equal to or greater than a predetermined value is detected, and a rectangular region or a circular region including all the region ARm is defined as a marker light irradiation region. do it. Alternatively, a region having a predetermined shape (irradiation shape by the marker light Mk, which is a rectangular shape in the example of the region ARm in FIG. 5) is detected from the captured image (first captured image) obtained in S3, and the region is detected. It is good also as an irradiation area of marker light.

Further, as a second example of specifying the area in S3, the memory 35 is made to function as a position data storage unit, and position data indicating the position of the irradiation area of the marker light Mk in the captured image obtained by the imaging unit 23 is stored. You may make it leave. The position data includes, for example, center data indicating the center position of the irradiation area of the marker light Mk and size data indicating the size centered on the center position. For example, as shown in FIG. 9, the irradiation direction of the marker light Mk by the marker light irradiation unit 50 (the direction of the central axis (optical axis) Mk1) is substantially parallel to the central axis (optical axis G) of the imaging range AR1, and When the distance between the center axis Mk1 of the marker light Mk and the optical axis G is very close (for example, when it is small enough to be ignored), the center position of the irradiation area by the marker light Mk is substantially the center pixel of the captured image. Accordingly, in such a case, for example, the coordinate data of the central pixel in the captured image generated by the imaging unit 23 is used as the central data, and the diameter of the irradiation spot (the diameter of the marker light) assumed in advance with the marker light Mk. ) As size data in the memory 35, based on such position data, the marker light irradiation region (for example, the center of the irradiation region) in the captured image (first captured image) obtained in S3. And the diameter of the irradiated area).
In this case, the control circuit 40 corresponding to the detection unit uses the captured image (first captured image) obtained in S3 based on the position data stored in the memory 35 (position data storage unit) by the process of S4. It functions to specify the position of the irradiation area of the marker light Mk, and in the process of S5, it functions to detect a feature pattern from the irradiation area ARm in the first captured image.

  Further, as a third example in which the area is specified in S3, for example, as shown in FIG. 9, the marker light irradiation unit 50 irradiates the marker light Mk along the central axis G of the imaging range AR by the imaging unit 23. For example, the position data may not be stored in the memory 35. That is, in such a case, since it is specified in advance by the apparatus configuration that the irradiation area of the marker light Mk is a predetermined area including the central portion of the captured image, the control circuit 40 corresponding to the detection section By processing, a predetermined central region (for example, a position specified by the center of the irradiation region and the diameter of the irradiation region described above) including the central portion of the captured image (first captured image) obtained in S3 is detected as “feature detection. It is specified as “area”, and in the process of S5, a feature pattern may be detected from the “feature detection area” specified in this way.

  In any of the examples described above as the process of S4, in the process of S5, a feature pattern is detected from the “feature detection area” specified in S4. Specifically, for example, when the information code 100 to be read is a known QR code (registered trademark) as shown in FIG. 5, the position detection pattern (cutout symbol) FP included in the QR code is expressed as “feature pattern”. ”Is detected by a known detection method. Specifically, for example, scanning is performed in a predetermined direction at a plurality of positions in the “feature detection area” specified in S4, and each region width is 1: in a region where light cells and dark cells are alternately arranged. A region of 1: 3: 1: 1 is detected.

  Note that the feature pattern detected in S5 is not limited to the feature pattern as shown in FIG. For example, a plurality of types of feature patterns to be detected in S5 may be assumed. For example, a part of the arrangement of the light bar Ws (space) and the dark bar Bs (bar) of the barcode as shown in FIG. It may be a “feature pattern”. For example, as shown in FIG. 7, when a part of the barcode (information code 100) located in the irradiation area ARm of the marker light is tried to be decoded by a known method, and a part of the barcode can be decoded The process may proceed to Yes in S6. Specifically, for example, when at least a known start bit, stop bit or the like is detected, the process may proceed to Yes in S6, or when at least a predetermined character can be decoded, the process may proceed to Yes in S6. Good.

  In addition, in FIG. 5, the example which irradiates marker light is shown so that rectangular marker light irradiation area | region ARm may be comprised. Even in the rectangular area as shown in FIG. 5, it is possible to read a part of the barcode as shown in FIG. 6 in S5, but assuming that the barcode as shown in FIG. 6 is read. The marker light may be irradiated so that a linear marker light irradiation area ARm is formed as shown in FIG. Note that examples of the marker light irradiation area ARm are not limited to these, and for example, various configurations as shown in FIG.

  If it is determined in S6 that a feature pattern has been detected, the process proceeds to Yes in S6, and the feature detection count is incremented by one. The value of the number of feature detections counted up in S8 is set (initialized) to 0 immediately after execution of the process of S1, for example, and is incremented every time the process of S8 is performed. It has become. Then, after S8, it is determined whether or not the number of feature detections has reached a specified number of times (for example, 3 times) (S9), and when the number of feature detections counted up in S8 has reached the specified number of times. Advances to Yes in S9. On the other hand, if the number of feature detections counted up in S8 has not reached the specified number, the process proceeds to No in S9, and the processes after S3 are repeated. If it is determined that the feature pattern is not detected in the determination process of S6, the process proceeds to Yes in S6, and the number of feature detections is cleared to zero.

  When the process proceeds to Yes in S9, the position of the “feature detection area” calculated in S4 is stored in the memory 35. Then, the illumination light source 21 is operated to start illumination light irradiation (S11), and the shutter speed at the imaging unit 23 is relatively faster (shorter) than the first shutter speed set at S2. The shutter speed is set (S12). That is, in S12, the exposure time when capturing with the imaging unit 23 is set shorter than the exposure time set in S2. Then, the operation of the marker light irradiation unit 50 is stopped and the marker light is turned off (S13).

  In this configuration, the control circuit 40 corresponds to an example of a light source control unit, and the first control (control of S1 to S10) for driving the marker light irradiation unit 50 without driving the illumination light source 21 and the illumination light source 21. The control for switching between the second control (control of S11 to S19) for driving is performed. Specifically, when the control circuit 40 corresponding to the detection unit detects a feature pattern from the captured image (first captured image) acquired in S3, the first control is performed on the marker light irradiation unit 50 and the illumination light source 21. To the second control. More specifically, the imaging unit 23 performs the captured image (first captured image) by the process of S3 in a state in which the marker light is irradiated according to the first control by the light source control unit until the process proceeds to Yes in S9. ) Is acquired a plurality of times, and the control circuit 40 corresponding to the light source control unit detects the feature pattern continuously for a predetermined number of times by the detection unit in the plurality of first captured images (that is, In the case of advancing to Yes in S9), the first control is switched to the second control.

  After the operation of the marker light irradiation unit 50 is stopped in S13 and the marker light is turned off, a timeout time T is set (S14), and time measurement up to this time T is started. Then, it is determined whether or not the measurement time started in S14 has passed the timeout time T. If the time after the processing in S14 has passed the timeout time T, the imaging range is set by the imaging unit 23. An image is taken (S16). As a result, a captured image (second captured image) by the imaging unit 23 in a state where the second shutter speed is set is generated. Then, the information code included in the second captured image obtained in S16 is decoded by a known method (S17). In the process of S17, the information code included in the vicinity of the feature detection area stored in S10 (for example, a region within a certain range from the center of the feature detection area stored in S10 in the second captured image obtained in S16). Is decoded by a known method. If the decoding is successful in S17, the process proceeds to Yes in S18, and the data decoded in S17 (data recorded in the information code 100) is transmitted to an external device (for example, the host computer HST in FIG. 2). (S19). After S19, the illumination light source 21 is stopped, the illumination is turned off (S20), and the process returns to S1 again. On the other hand, if the decoding fails in S17, the process proceeds to No in S18. In this process, until the time-out time T elapses from S14, the process after S16 is repeated every time the process proceeds to No in S18.

  In this configuration, the control circuit 40 that performs the processes of S2 and S12 corresponds to an example of a setting unit, and when a feature pattern is detected by the detection unit (specifically, when the process proceeds to Yes in S9), imaging is performed. The shutter speed at the unit 23 functions to change the setting to a second shutter speed that is faster than the first shutter speed before the feature pattern is detected by the detection unit. In this configuration, after the process of S20, the process returns to S1 and the process of S2 is performed. That is, after the second captured image is processed by the processing unit, the control circuit 40 corresponding to the setting unit performs the process of S2 again, and returns the shutter speed at the imaging unit 23 to the first shutter speed again. It is like that.

  In this configuration, the control circuit 40 corresponds to an example of a processing unit, and processes the second captured image obtained by the imaging unit 23 in a state where illumination light is irradiated according to the second control by the light source control unit. More specifically, after the feature pattern is detected from the first captured image at the first shutter speed by the detection unit, the imaging unit whose setting is changed to the second shutter speed by the setting unit It functions so as to process the second captured image obtained in the above. In this processing unit, as processing of the second captured image, processing for decoding the information code included in the second captured image obtained in S16 and processing for transmitting the decoded data to the external device are performed. The process for the two captured images may be a process for displaying or storing decoded data of the information code included in the second captured image. Or the process which memorize | stores the 2nd captured image itself may be sufficient, and the process which transmits the 2nd captured image itself to an external device may be sufficient.

(An example of the effect of this configuration)
In this configuration, the light source control unit switches between the first control for driving the marker light irradiation unit 50 without driving the illumination light source 21 and the second control for driving the illumination light source 21. Until the feature pattern is detected, detection of the feature pattern is attempted using the first captured image obtained in the state where the marker light is irradiated. After the feature pattern is detected, the illumination light source 21 is driven to obtain the feature pattern. The information code is processed by the second captured image.
When the feature pattern is detected by the first captured image obtained in the state where the marker light is irradiated, there is a high possibility that the information code exists in the direction intended by the user (direction in which the reading device is directed). If such a detection result is obtained, if the illumination light source 21 is driven to capture the second captured image, the information code intended by the user can be selectively decoded, and the illumination light source 21 is always driven. Compared to a configuration that attempts to decode the information code, it is easier to prevent unintentional decoding of the information code. Moreover, since the illumination light source 21 is driven when there is a high possibility that an information code exists in the direction in which the reading device 10 faces, power consumption can be effectively suppressed.

  Further, the detection unit analyzes the marker light irradiation region in the first captured image obtained in S3, and detects a feature pattern from the irradiation region. In this way, it is possible to more reliably detect whether or not the information code is present at the marker light irradiation destination, and more reliably read the information code existing at the marker light irradiation destination. Will be able to.

  Further, the second example described in the process of S4 includes a position data storage unit (memory 35) that stores position data indicating the position of the marker light irradiation region in the captured image obtained by the imaging unit 23. The detection unit specifies the position of the marker light irradiation region in the first captured image based on the position data stored in the position data storage unit, and the feature pattern is determined from the marker light irradiation region in the first captured image. Is detected. In this way, when analyzing the irradiation area of the marker light in the first captured image, the position of the irradiation area of the marker light can be grasped more accurately and analyzed.

  In the second example of the process of S4, the position data includes center data indicating the center position of the irradiation region and size data indicating the size around the center position. In this way, the specific range of the marker light irradiation region can be understood and analyzed in more detail with simpler data.

  In addition, the marker light irradiation unit 50 is configured to irradiate the marker light Mk along the central axis G of the imaging range AR by the imaging unit 23. In the third example described in the process of S4, the detection unit A feature pattern is detected from a predetermined central region including the central portion of one captured image. In this way, when analyzing the irradiation area of the marker light in the first captured image, the position of the irradiation area of the marker light can be grasped more accurately and analyzed.

  In this configuration, the imaging unit 23 acquires the first captured image a plurality of times in a state in which the marker light is irradiated according to the first control by the light source control unit, and the light source control unit performs the first imaging for a plurality of times. When a feature pattern is detected a predetermined number of times consecutively in the image, the first control is switched to the second control. As described above, when the illumination light source is driven only when the feature pattern is detected a predetermined number of times in succession and the second captured image is processed, an unintended information code temporarily changes the imaging range by chance. In a case of crossing (for example, a case where a feature pattern is detected only once), it is easy to eliminate the decoding process for an unintended information code.

  Moreover, in this structure, the marker light irradiation part 50 is a shape including the linear shape in which the irradiation shape in the plane orthogonal to the marker light irradiation direction extends in a predetermined direction as shown in FIG. (E)), a substantially rectangular shape (see FIG. 8A), and a substantially circular shape (see FIGS. 8B and 8C) are irradiated with marker light. In this way, it is easier to detect a feature pattern better for an information code that can detect a feature pattern by scanning in a predetermined direction or an information code that can detect a feature pattern by analyzing a circular area or a rectangular area. Become.

  In this configuration, the shutter speed of the image pickup unit 23 is set to be relatively slow (long) until the feature pattern is detected, and the image is relatively easily blurred. When entering the imaging range, the feature pattern of the information code can be made difficult to be detected, and the information code can be made difficult to read. On the other hand, when a feature pattern is detected in the first captured image in which the image is easily blurred, it is highly likely that the user has held the device for an information code that desires the device. Therefore, according to the above configuration, the information code desired by the user can be easily read, and the information code not desired by the user can be more reliably excluded. In addition, when a feature pattern is detected in the first captured image, the second captured image that is likely to contain the intended information code is captured more clearly by setting the shutter speed to be faster (shorter). This makes it easier to read the desired information code more reliably.

  Further, in this configuration, the setting unit is configured to return the shutter speed at the imaging unit to the first shutter speed again after the processing unit processes the second captured image. According to this configuration, after the second captured image is processed, the setting can be made so that unwanted information codes can be easily excluded again by returning to the first shutter speed again. That is, every time the second captured image is processed, it is possible to return to a state in which only a desired information code can be easily selected, and reading can be performed more efficiently.

[Second Embodiment]
In the second embodiment, only the reading process shown in FIG. 10 is different from the reading process (FIG. 4) of the first embodiment, and the other configuration is the same as that of the first embodiment. Therefore, in the following, the reading process will be described with emphasis, and detailed description of other configurations similar to those of the first embodiment will be omitted.

  In the reading apparatus 10 according to the second embodiment, the reading process is performed according to the flow shown in FIG. In the reading process in FIG. 10, the processes in S201 to S218 are the same as the processes in S1 to S18 in FIG. 4, and thus detailed description of these processes is omitted.

  In the reading process of FIG. 10, the process when the process proceeds to Yes in S <b> 215 is different from the process when the process proceeds to Yes in S <b> 15, and the process when the process proceeds to Yes in S <b> 218. Is different. Other than that, it is the same as the processing of FIG. 4 described in the first embodiment.

  In the reading process of FIG. 10, when the process proceeds to Yes in S215, the operation of the illumination light source 21 is stopped and the illumination light is turned off (S219). In this case, after the process of S219, the processes after S201 are performed again.

  On the other hand, when the process proceeds to Yes in S218, a cancel waiting time T2 is set in S220, and time measurement until the elapsed time after the processing in S220 reaches time T2 is started (S220). Then, the operation of the illumination light source 21 is stopped and the illumination light Lf is turned off (S221). Then, it is determined whether or not the measurement time started in S220 has passed the cancel wait time T2 (S222). If the elapsed time after the processing in S220 has passed the cancel wait time T2, the process proceeds to S222. Proceed to Yes. When the process proceeds to Yes in S222 as described above, the decrypted data (processed data) decrypted in S217 is transferred to an external device (for example, the host computer HST in FIG. 2). Note that the process of S217 is the same as the process of S19 of FIG.

  On the other hand, in the determination process of S222, when it is determined that the elapsed time after the process of S220 has not passed the cancellation waiting time T2, the process proceeds to No in S222 and whether or not there is a “predetermined cancel operation”. Is determined (S223). If it is determined that the “predetermined cancel operation” has not been performed, the process proceeds to No in S223, and the processes in and after S222 are repeated. That is, in this process, the processes of S222 and S223 are repeated until the cancellation time T2 (a certain time) elapses after the process of S220, unless there is a “predetermined cancel operation”. On the other hand, if it is determined in S223 that the “predetermined cancel operation” has been performed, the process proceeds to Yes in S223, and the external device (such as the host computer HST in FIG. 2) of the decrypted data decrypted in S217. Cancel the transmission to, and erase the decrypted data.

  As a first example of the “predetermined cancel operation” determined in S223, for example, a “predetermined dedicated code read operation by the portable information code reader 20” can be used. In such a configuration, when the process proceeds to No in S222, if it is determined that “the operation of reading a predetermined dedicated code by the portable information code reader 20” has been performed, the process proceeds to Yes in S223, and is not so. In this case, the process proceeds to No in S223. In such an example, the turn-off process of S221 may be performed after S225 or after S224. There are various examples of the “dedicated code”, and for example, an information code in which unique identification information (identification information indicating a dedicated code) is recorded may be used. Alternatively, a specific type of information code assumed as a dedicated code may be used.

  In addition, as a second example of the “predetermined cancel operation” determined in S223, a “predetermined pressing operation on the operation switch 42” can be used. In such a configuration, when the process proceeds to No in S222, if it is determined that there is a “predetermined pressing operation on the operation switch 42”, the process proceeds to Yes in S223, and otherwise, the process proceeds to S223. Proceed to No. Note that the “predetermined pressing operation” can be, for example, a long pressing operation in which the operation switch 42 is continuously pressed for a certain period of time or an operation in which the operation switch 42 is repeatedly pressed a certain number of times.

As a third example of the “predetermined canceling operation” determined in S223, “read code already read by the portable information code reader 10 is read again by the portable information code reader 10”. Operation ". In such a configuration, when the process proceeds to No in S222, it is determined that there has been an “operation for rereading a read code that has already been read by the portable information code reader 10 by the portable information code reader 10”. If yes, the process proceeds to Yes in S223, and if not, the process proceeds to No in S223. An example of “read code already read by the portable information code reader 10” is the information code decoded in the latest processing of S217, and the cancel waiting time T2 elapses after the processing of S221. If such an information code is read until then, the decoded data of this information code is erased in S225.
Further, the already read code assumed in the third example is not limited to the information code read in the latest S217. For example, when an information code read by the reading device 10 before the latest S217 is read again, a process of deleting the decoded data of the information code may be performed in S225. In this case, when the decrypted data of the information code is still stored in the memory 35, it is desirable to erase the decrypted data from the memory 35. In addition, when the decrypted data of the information code has already been transmitted to the external device, a command for deleting the decrypted data of the information code may be transmitted to the external device.

Further, as a fourth example of the “predetermined cancel operation” determined in S223, “a predetermined external operation is being performed on the operation switch 42 and the portable information code reader 10 has already read the operation switch 42”. The operation in which the already read code is read by the portable information code reader 10 again can be performed. In such a configuration, when the process proceeds to No in S222, “the read code that has already been read by the portable information code reader 10 while the predetermined external operation is being performed on the operation switch 42 is again the portable code. If it is determined that there has been an “operation read by the mold information code reader 10”, the process proceeds to Yes in S223, and otherwise, the process proceeds to No in S223. In this case, for example, the predetermined external operation includes an operation of pressing the operation switch 42, and an example of “read code already read by the portable information code reader 10” is the latest S217. The information code decrypted by the above process is listed. In such a case, such an information code (information code read in the latest S217) is read while the operation switch 42 is pressed until the cancellation waiting time T2 elapses after the processing of S221. If so, the decrypted data of this information code is erased in S225.
Also in the fourth example, the assumed read code is not limited to the information code read in the latest S217. For example, when an information code read by the reading device 10 before the most recent S217 is read again together with the pressing of the operation switch 42, a process of deleting the decoded data of the information code is performed in S225. Good. In this case, when the decrypted data of the information code is still stored in the memory 35, it is desirable to erase the decrypted data from the memory 35. If the decrypted data of the information code has already been transmitted to an external device (such as the host computer HST in FIG. 2), a command for deleting the decrypted data of the information code is transmitted to the external device. May be.

  Further, as a fifth example of the “predetermined canceling operation” determined in S223, it can be an “operation for continuously capturing an information code by the imaging unit for a predetermined time or longer”. In such a configuration, when the process proceeds to No in S222, if it is determined that there is an “operation for continuously capturing the information code for a predetermined time or longer by the image capturing unit 23”, the process proceeds to Yes in S223. Otherwise, the process proceeds to No in S223. The information code assumed in the fifth example may be a dedicated code as in the first example, or may be a read code as in the third example or the fourth example. In the case of a read code, if it is determined that there has been an “operation to continue imaging the read code for a predetermined time or longer by the imaging unit 23”, the process proceeds to Yes in S223, and the read code is decoded. A process of deleting data may be performed. For example, when the read code is an information code decoded in the latest processing of S217, such information code is continuously imaged for a predetermined time after the processing of S221 until the cancellation waiting time T2 elapses. If the process is continued, the decrypted data of the information code may be deleted in S225. In addition, when the read code is an information code read by the reading device 10 before the latest S217, and such read code is read again after the process of S220, the information code of the information code is read in S225. You may make it perform the process which erases decoding data. Also in this case, when the decrypted data of the information code is still stored in the memory 35, it is desirable to erase the decrypted data from the memory 35. In addition, when the decrypted data of the information code has already been transmitted to the external device, a command for deleting the decrypted data of the information code may be transmitted to the external device.

  As described above, this configuration includes a corresponding unit that performs predetermined cancel control on the processing data obtained by processing the captured image by the processing unit when a predetermined instruction operation is performed on the portable information code reader 10. ing. According to this configuration, when a captured image of an undesired information code is processed, or when processing possibility is high, processing data obtained by processing the captured image can be canceled. The configuration is such that only the code processing data remains.

Further, in this configuration, the control circuit 40 corresponding to the processing unit functions as a decoding unit that decodes the captured image obtained by the imaging unit 23, and further decodes until a certain time elapses after decoding the captured image. It also functions as a transmission unit that stops transmission of the decrypted data obtained by the unit and transmits the decrypted data to an external device provided outside the portable information code reader after a lapse of a certain time. Then, the control circuit 40 corresponding to the corresponding unit erases the decrypted data when a predetermined instruction operation is performed on the portable information code reader 10 before the fixed time elapses after the captured image is decrypted. Processing is performed, and the transmission unit is configured not to perform processing for transmitting the decrypted data to the external device when the decrypted data is erased by the corresponding unit.
According to this configuration, while realizing a configuration capable of transmitting data obtained by decoding an information code to an external device, it becomes easy to stop transmission of decoded data of the information code when an undesired information code is decoded. . Therefore, in the external device, it becomes easy to obtain only decoded data of the information code desired by the user.

  Further, in this configuration, the memory 35 (setting data storage unit) that stores the value of the “certain time” (cancellation waiting time T2 in S220) is provided, and the control circuit 40 corresponding to the transmission unit includes the memory 35 (setting data storage unit). Based on the data stored in the data storage unit), transmission of decrypted data (data decrypted in S217) in S222 and S223 is stopped for a certain time (cancellation waiting time T2). And the value of the fixed time (cancellation waiting time T2) memorize | stored in the memory 35 (setting data storage part) can be changed. For example, the value of a predetermined time (cancellation waiting time T2) can be updated by an operation on the operation switch 42 or data input from the outside. According to this configuration, the user can arbitrarily set and change the cancellation waiting time T2 (fixed time) that can be canceled in the apparatus, and the convenience is further improved.

  Further, in the first example related to the “cancel operation”, when a predetermined dedicated code is read by the portable information code reader 10, the control circuit 40 corresponding to the corresponding unit performs cancel control. Yes. According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading the dedicated code by the portable information code reader 10. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible.

  Further, in the second example regarding the “cancel operation”, when a predetermined external operation is performed on the operation switch 42, the control circuit 40 corresponding to the corresponding unit performs cancel control. According to this configuration, the user can cancel the existing processing data by performing a simple operation of operating the operation switch 42.

  Further, in the third example regarding the “cancel operation”, when the already-read code already read by the portable information code reader 10 is read again by the portable information code reader 10, the processing unit An erasure process for erasing the processed data of the processed read code is performed. According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading the read code by the portable information code reader 10. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. In addition, since the processing data to be canceled can be specifically designated and cancelled, unnecessary data can be reliably selected and canceled when there are a plurality of processing data.

  In the fourth example relating to the “cancel operation”, a read code that has already been read by the portable information code reader 10 while a predetermined external operation is performed on the operation switch 42 is again the portable information. When it is read by the code reader 10, it is configured to perform an erasure process for erasing the processed data of the processed read code. According to this configuration, when a plurality of processing data exists, unnecessary data can be reliably selected and canceled. In addition, since the operation of the operation switch is set as a cancellation condition, it is easy to prevent erroneous processing data that is not desired to be canceled.

[Third Embodiment]
The portable information code reader according to the third embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed according to the flow shown in FIG. Further, the processes other than the reading process of FIG. 10 are the same as those in the first embodiment and the second embodiment.

  In the third embodiment, the “predetermined cancel operation” to be determined in S223 is “the captured image of the information code decoded in S217 (the captured image captured in S216 (second captured image))”. “Operation in which the information code is imaged by the imaging unit 23 in a direction rotated from a direction by a predetermined angle or more (for example, 90 ° or more)”. In such a configuration, when the process proceeds to No in S222, “a predetermined angle or more from the direction of the information code in the captured image of the information code decoded in S217 (the captured image captured in S216 (second captured image))” If it is determined that there has been an operation in which the information code is imaged by the imaging unit 23 in a rotated direction (for example, 90 ° or more), the process proceeds to Yes in S223, and if not, the process proceeds to S223. Proceed to No. In the QR code (registered trademark), the picked-up image (second picked-up image) depends on the positions of the three position detection patterns FP (FIG. 5) in the picked-up image (second picked-up image) of the information code decoded in S217. Can be specified, and if there is an operation for imaging the information code by the imaging unit 23, the captured image (third captured image) The attitude of the information code (second imaging attitude) in the captured image (third captured image) can be specified by the positions of the three position detection patterns FP. Then, by comparing these images, it is possible to determine whether or not “an operation for imaging the information code by the imaging unit 23 in a direction rotated by a predetermined angle or more (for example, 90 ° or more)” has been performed. .

In this configuration, the control circuit 40 that performs the processing in FIG. 10 corresponds to an example of a corresponding unit, and an information code included in a captured image obtained by the imaging unit 23 (second captured image obtained in S216) is a predetermined value. When the processing data (decrypted data decoded in S217) is generated by the processing unit when in the first imaging posture, the second imaging whose orientation differs from the first imaging posture by a predetermined angle or more is thereafter performed by the imaging unit 23. When the information code is read in a posture, the cancel control for the processing data (for example, the deletion of the decoded data obtained by decoding the information code from the memory 35 or the command for deleting the decoded data obtained by decoding the information code For example, processing to transmit to the apparatus).
According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading the information code by the portable information code reader 10. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. In addition, since cancel control is performed when the processing unit reads the image in a second imaging posture different from the processing target posture (first imaging posture), the user cancels with a simple change “change the reading posture”. Is possible.

  The idea of the third embodiment is not limited to the reading process as shown in FIG. 10, but is limited to the case where the information code is decoded in the flow as shown in S201 to S218 in FIG. Absent. For example, the present invention can be similarly applied when information codes are read in the order as shown in FIG.

  In the example of the sequence explanatory diagram of FIG. 11, an operation for reading the information code by the reading device 10 is performed as in S301 (S301). Thereafter, if it is not necessary to cancel the decoded data of the information code, the operator does not need to perform a special operation. On the other hand, if it is desired to cancel the decoded data of the information code after the operation of S301, the operator reads the information code in S301 while maintaining the information code in the imaging range of the imaging unit 23 from the time of reading in S301. The information code is rotated by 90 ° or more from the imaging posture (first imaging posture) of the current information code (S302). Then, the reader 10 is caused to read the information code thus rotated (S303). Thereafter, in S304, a cancel command is executed by the reading apparatus 10 (S304).

  In the reading device 10 that assumes the flow of cancellation as illustrated in FIG. 11, after the information code is read, the control circuit 40 maintains the information code within the imaging range of the imaging unit 23 from the time of reading. It is determined whether or not an image of the imaging posture (second imaging posture) rotated 90 ° or more from the imaging posture (first imaging posture) of the information code at the time of reading is obtained. When an image having an imaging posture (second imaging posture) rotated by 90 ° or more from the imaging posture (first imaging posture) of the information code at the time of reading is obtained, the decoding data of the information code is read by the reading device 10. Erase from Further, when the decrypted data of the information code has already been transmitted to the external device, a command for instructing the external device to erase the decrypted data of the information code may be transmitted.

[Fourth Embodiment]
The portable information code reader according to the fourth embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed according to the flow shown in FIG. Further, the processes other than the reading process of FIG. 10 are the same as those in the first embodiment and the second embodiment.

  In the fourth embodiment, the “predetermined cancel operation” to be determined in S223 is “within a certain time after removing the information code processed by the processing unit from the imaging range AR (FIG. 9) of the imaging unit 23”. (For example, an operation for causing the information code to enter the imaging range AR (FIG. 9) within a predetermined time shorter than the above-described cancel waiting time T2). In such a configuration, when the process proceeds to No in S222, “the information code processed by the processing unit (the information code decrypted in S217) is removed from the imaging range AR (FIG. 9) of the imaging unit 23 and removed. If it is determined that there has been an “operation for causing the information code to enter the imaging range within a certain time”, the process proceeds to Yes in S223, and otherwise, the process proceeds to No in S223.

  In this configuration, the control circuit 40 corresponds to an example of a corresponding unit, and the information code processed by the processing unit (information code decoded in S217) does not exist in the imaging range AR (FIG. 9) of the imaging unit 23. When the information code enters the imaging range AR (FIG. 9) within a certain period of time after it no longer exists, cancel control for the processing data (information code decoded in S217) (for example, decoding by decoding the information code) The data is deleted from the memory 35, or a process for transmitting a command for deleting the decoded data obtained by decoding the information code to an external device). According to this configuration, the user can cancel the existing processing data by performing a simple operation of once removing the processed information code from the imaging range and reentering the imaging range within a predetermined time. It becomes like this. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible.

  Further, the idea of the fourth embodiment is not limited to the reading process as shown in FIG. 10, but is limited to the case where the information code is decoded in the flow of S201 to S218 in FIG. Absent. For example, the present invention can be similarly applied when information codes are read in the order as shown in FIG.

  In the example of the sequence explanatory diagram of FIG. 12, the operator first performs an operation of reading the information code by the reading device 10 as in S401 (S301). Thereafter, if it is not necessary to cancel the decoded data of the information code, the operator does not need to perform a special operation. On the other hand, if it is desired to cancel the decoded data of the information code after the operation of S401, the operator removes the information code from the reading field of view (imaging range by the imaging unit 23) and then reads the reading field (imaging again). It is only necessary to perform an operation for returning the image to the imaging range by the unit 23 (S402) and cause the reader 10 to read the information code. As described above, when the information code is removed from the imaging range, and then the information code enters the imaging range, the reading device 10 reads the information code read in S401 if the time outside the imaging range is within a predetermined time. Cancel the decrypted data. On the other hand, if the time outside the imaging range exceeds a certain time, the decoded data of the information code read in S403 is stored in the memory 35 as new data.

  In the reading device 10 that assumes the flow of cancellation as shown in FIG. 12, after the information code is read, the control circuit 40 removes the information code from the imaging range of the imaging unit 23 and is constant after the information code is removed. It is determined whether or not the information code has entered the imaging range of the imaging unit 23 again in time. When the read information code is removed from the imaging range of the imaging unit 23 and the information code is reentered in the imaging range of the imaging unit 23 within a certain time after being removed, the decoded data of the information code Are deleted from the reader 10. Further, when the decrypted data of the information code has already been transmitted to the external device, a command for instructing the external device to erase the decrypted data of the information code may be transmitted.

[Fifth Embodiment]
The portable information code reader according to the fifth embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed according to the flow shown in FIG. Further, the processes other than the reading process of FIG. 10 are the same as those in the first embodiment and the second embodiment.

  In the fifth embodiment, the “predetermined cancel operation” to be determined in S223 is “an operation in which a plurality of information codes are simultaneously imaged by the imaging unit”. In such a configuration, when the process proceeds to No in S222, if it is determined that there has been an “operation for simultaneously imaging a plurality of information codes by the imaging unit”, the process proceeds to Yes in S223, and otherwise Will proceed to No in S223.

  In this configuration, the control circuit 40 that performs the processing of FIG. 10 corresponds to an example of a corresponding unit. After the processing data (decoded data obtained in S217) is generated by the processing unit, a plurality of information codes are generated by the imaging unit 23. In the case where images are simultaneously captured, cancel control is performed on the processing data (decoded data obtained in S217). According to this configuration, the user can cancel the existing processing data by performing a simple operation of reading a plurality of information codes by the portable information code reader 10. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible. Furthermore, reading at the time of cancellation can be distinguished from normal reading by a simple response of simultaneously imaging a plurality of information codes.

  In the above example, when a plurality of information codes are imaged simultaneously, the example of canceling the latest decoded data is shown. However, it is assumed that a plurality of information codes are imaged in a predetermined arrangement. As a condition, it may be configured to perform cancel control on the processing data (decrypted data decrypted in S217). In this configuration, since a condition for cancellation is that a plurality of information codes are imaged in a predetermined arrangement, the plurality of information codes are not canceled even if the information codes are imaged outside the predetermined arrangement. Accordingly, it is possible to easily cancel the processing data that the user does not want to cancel, while making it possible to easily cancel it by the same action (code reading operation) as in normal reading.

  In any of the above examples, when a plurality of information codes are simultaneously imaged, an example of canceling the latest decoded data has been shown. However, after the processing data is generated by the processing unit, the portable information code The configuration may be such that when a plurality of information codes are simultaneously imaged by the reading device and the plurality of information codes are read, cancel control is performed on the processing data corresponding to the plurality of information codes. According to this configuration, it is possible to reliably specify a plurality of processing data desired to be canceled and cancel them all at once, so that the convenience is very high.

  Further, any idea of the fifth embodiment is not limited to the reading process as shown in FIG. 10, but is limited to the case where the information code is decoded in the flow like S201 to S218 in FIG. It is not a thing. For example, the present invention can be similarly applied when information codes are read in the order as shown in FIG.

  FIG. 13 schematically illustrates the order of the cancel operation in the case where already decrypted data is stored in the reader 10, and in this example, when canceling the stored decrypted data, the operator Arranges a plurality of information codes within the imaging range of the imaging unit 23 (S501), and causes the reading device 10 to read the plurality of information codes (S502). Thereafter, a cancel command is executed in the reading device 10 (S503).

  In the reading device 10 that assumes the flow of cancellation as shown in FIG. 13, the control circuit 40 determines whether or not an image of a plurality of information codes has been obtained after the information code has been read. When images of a plurality of information codes are obtained, the latest decoded data of the information code or the decoded data of the plurality of information codes is erased from the reading device 10. Further, a condition is added, and after the information code is read, the control circuit 40 determines whether or not a plurality of information code images are obtained in a predetermined arrangement. When the data is obtained in a predetermined arrangement, the latest decoded data of the information code or the decoded data of the plurality of information codes may be erased from the reading device 10.

[Sixth Embodiment]
Next, a sixth embodiment will be described.
The portable information code reader according to the sixth embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed according to the flow shown in FIG. For example, S201 to S218 in FIG. 10 are the same as those in the second embodiment, and the process in FIG. 14 is performed instead of the processes in S220 to S225. Further, only the reading process is different from that of the first embodiment, and other configurations are the same as those of the first embodiment. Therefore, in the following, the reading process will be described with emphasis, and detailed description of other configurations similar to those of the first embodiment will be omitted.

  Even in this configuration, the illumination light source 21 and the marker light irradiation unit 50 similar to those of the first embodiment are provided as light sources for irradiating light. An imaging unit 23 that captures an image in a predetermined imaging range is provided, and a case 12 is provided to hold these light sources (the illumination light source 21, the marker light irradiation unit 50, and the like) and the imaging unit 23. And the attachment member 60 attached to a user's body or a user's wearing thing is provided integrally with the case 12 or as a separate body from the case. The control circuit 40 corresponds to an example of a processing unit and functions to process a captured image obtained by the imaging unit 23.

  Furthermore, the control circuit 40 that executes the processing of FIG. 14 corresponds to an example of a corresponding unit, and when a predetermined instruction operation is performed on the portable information code reader 10, the captured image is processed by the processing unit. Predetermined cancel control is performed on the processing data.

  In the process of FIG. 14, when the information code to be canceled enters the imaging range of the imaging unit 23 and is captured, this information code is read by a known decoding method (S601). The information code read in this way corresponds to the read code.

  Then, after reading the information code in S601, the movement of the information code within the imaging range of the imaging unit 23 is monitored. Specifically, from a point of time when the reading is successful in S601, for a predetermined time (for example, several seconds or tens of seconds), every predetermined short time (for example, every several milliseconds or tens of milliseconds). The captured image obtained by the imaging unit 23 is analyzed, and it is confirmed whether or not the information code read in S601 is within the captured image. The monitoring of the information code in S602 may be performed by reading the information code from the captured image obtained every predetermined short time to confirm the presence of the information code. In the captured image obtained every predetermined short time, The presence of the information code may be confirmed by detecting a predetermined portion of the information code (for example, a feature pattern such as a position detection pattern or the outer shape of the information code).

  Then, after the information code has been successfully read in S601, it is determined whether or not the information code has been moved to a predetermined position within the imaging range within a predetermined time while being within the imaging range (S603). After reading the information code in S601, if the information code is out of the imaging range before moving to a predetermined position in the imaging range, or after reading the information code in S601, the information code is not changed. If the image does not move to a predetermined position within the imaging range, the process proceeds to No in S603, and the process of FIG. On the other hand, after reading the information code in S601, if the information code continues to fall within the imaging range from the reading time and moves to a predetermined position within the imaging range within a predetermined time, the process proceeds to Yes in S603, In S604, a cancel command is executed. When the cancel command is executed in S604, the decoded data of the information code read in S601 is erased from the memory 35. For example, in the imaging range AR as shown in FIG. 15, when the position of the region B2 is determined as a predetermined position, the information code 100 read as shown in FIG. If it continues to fall within the imaging range AR and moves to a predetermined position (area B2) within the imaging range AR as shown in FIG. 15B within a certain time, the process proceeds to Yes in S603, and the decoded data of the information code 100 Is deleted from the memory 35.

  The information code reading process in S601 may be the reading process in S217. In this case, when the reading in S601 (S217) is successful, the process proceeds to Yes in S218 and proceeds to Yes in S218. The processing after S602 may be performed. In this case, when the process proceeds to Yes in S603, the data of the information code read in S217 (S601) is deleted from the memory 35.

  In addition, the reading of the information code in S601 may be performed as a separate process from S217. In this case, after the reading is successful in S217 and the process proceeds to Yes in S218, the processes after S601 are performed. do it. In this case, if the information code read in S601 is the same as the information code read in S217, or if the process proceeds to Yes in S603, the data of the information code read in S217 and S601 is read from the memory 35. It can be deleted. If the information code read in S601 is different from the information code read in S217, or if the process proceeds to Yes in S603, only the data of the information code read in S601 is deleted from the memory 35. In the case where data of the same information code as the information code read in S601 is stored in the memory 35, the stored same data may be deleted. Good.

  In the above example, when the cancel command is executed, the data of the information code read in S601 is deleted (erased). However, the same information code as the information code read in S601 is shown. Data may be invalidated. The data invalidation may be, for example, storing data having the same information code as the information code read in S601 in a specific storage location (such as an invalidation folder). A specific flag (invalidation flag) may be stored in association with the data of the same information code to indicate that the data is invalid.

As described above, in the present configuration, the control circuit 40 corresponding to the corresponding unit captures the image of the imaging unit 23 at least when the already-read code already read by the portable information code reader 10 is read from the time when the read code is read. When the predetermined relative movement state is entered within the imaging range without being out of the range, a process for deleting or invalidating the processing data of the read code processed by the processing unit is performed.
In this configuration, when processing data of any information code is to be deleted or invalidated, after reading the information code, a predetermined relative movement state is set within the imaging range without being removed from the imaging range of the imaging unit 23. That's fine. As described above, the processing data of the information code can be easily deleted or invalidated by a simple response that the information code desired to be canceled is set in a predetermined relative movement state.

Specifically, the control circuit 40 corresponding to the corresponding unit has moved to a predetermined position within the imaging range in which the read code does not deviate from the imaging range of the imaging unit 23 at least from the time of reading the read code. In such a case, the processing for deleting or invalidating the processing data of the read code is performed.
In this configuration, when it is desired to delete or invalidate the processing data of any information code, if the information code is read and moved to a predetermined position within the imaging range without being removed from the imaging range of the imaging unit 23 Good. As described above, the processing data of the information code can be easily deleted or invalidated by an extremely simple response of moving the information code desired to be canceled to a predetermined position.

[Modification of the sixth embodiment]
Next, a modified example of the sixth embodiment will be described.
The portable information code reader according to the modified example of the sixth embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed in the flow as shown in FIG. It has become. For example, S201 to S218 in FIG. 10 are the same as those in the second embodiment, and the process of FIG. 16 is performed instead of the processes of S220 to S225. Further, only the reading process is different from that of the first embodiment, and other configurations are the same as those of the first embodiment. Therefore, in the following, the reading process will be described with emphasis, and detailed description of other configurations similar to those of the first embodiment will be omitted.

  Even in this configuration, the illumination light source 21 and the marker light irradiation unit 50 similar to those of the first embodiment are provided as light sources for irradiating light. An imaging unit 23 that captures an image in a predetermined imaging range is provided, and a case 12 is provided to hold these light sources (the illumination light source 21, the marker light irradiation unit 50, and the like) and the imaging unit 23. And the attachment member 60 attached to a user's body or a user's wearing thing is provided integrally with the case 12 or as a separate body from the case. The control circuit 40 corresponds to an example of a processing unit and functions to process a captured image obtained by the imaging unit 23.

  Further, the control circuit 40 that executes the processing of FIG. 16 corresponds to an example of a corresponding unit, and when a predetermined instruction operation is performed on the portable information code reader 10, the captured image is processed by the processing unit. Predetermined cancel control is performed on the processing data.

  In the process of FIG. 16, when the information code to be canceled enters the imaging range of the imaging unit 23 and is imaged, the information code is read by a known decoding method (S611). The information code read in this way corresponds to the read code.

  Then, after reading the information code in S611, the movement of the information code within the imaging range of the imaging unit 23 is monitored. Specifically, from the time of successful reading in S611, every predetermined short time (for example, every several milliseconds or every several tens of milliseconds) for a certain period of time (for example, several seconds or tens of seconds). The captured image obtained by the imaging unit 23 is analyzed, and the information code read in S611 is confirmed. The monitoring of the information code in S612 may be performed by reading the information code from the captured image obtained every predetermined short time and confirming the presence of the information code.

  In step S613, it is determined whether the information code has been successfully read at a position different from the previous successful reading time. For example, after the reading is successful in S611, if the information code is successfully read at a position different from S611, the process proceeds to Yes in S613. As a specific example, in S611, the alignment is performed as shown in FIG. 18A, and the information code 100 is successfully read in the area B0 as shown in FIG. 17A, and then the monitoring in S612 is in progress. In addition, the positioning is performed as shown in FIG. 18B, and the information code 100 is successfully read in the area B2 at a position different from the area B0 at the time of the previous successful reading as shown in FIG. 17B. The process proceeds to Yes in S613, and the area B2 is added as a position change history after the area B0 (S614). On the other hand, in the process of S611, when the information code 100 is successfully read in the area B0 and thereafter the information code 100 is not successfully read, or only the reading in the area B0 is successful, the process proceeds to No in S613. The information code is continuously monitored until the reading succeeds in the area other than the previous area B0. Note that after the processing of S611 or after proceeding to No in S615, if the information code is not read at a different position from the previous time even after a predetermined time has elapsed, the processing itself of FIG. 16 may be terminated.

  After the process of S614, it is determined whether or not the position change history so far matches a predetermined pattern. For example, when the order is determined as “B2, B1” as the predetermined pattern, the information code is read in the area B0 in S611, and then the information code is read in the area B2, and the process proceeds to Yes in S613. In this case, since the position change history recorded in S614 so far is only “B2”, it does not match the above-mentioned predetermined pattern “B2, B1”. In this case, the process proceeds to No in S615. On the other hand, after the information code is read in the area B0 in S611, the information code is read in the area B2, and the process proceeds to Yes in S613. In the state where “B2” is recorded as the position change history, the process proceeds to No in S615. In this case, after that, as shown in FIG. 17C, when the information code is read in the area B1 and the process proceeds to Yes in S613, “B1” is added to the position change history. In this case, since the position change history is “B2, B1”, it matches the above-mentioned predetermined pattern, and the process proceeds to Yes in S615. Note that a predetermined time in which the passage of time from S611 is allowed is set in advance, and if the elapsed time from the end of the processing in S611 exceeds the predetermined time at the time of S615, the processing itself in FIG. That's fine.

  When the process proceeds to Yes in S615, a cancel command is executed in S616. When the cancel command is executed in S616, the decoded data of the information code read in S611 is erased from the memory 35. For example, when the information code 100 as shown in FIG. 17 is read in the process of S611 and then the process proceeds to Yes in S615 to execute the cancel command, the decoded data of the information code 100 is erased from the memory 35.

  The information code reading process in S611 may be the reading process in S217. In this case, when the reading in S611 (S217) is successful, the process proceeds to Yes in S218 and proceeds to Yes in S218. In addition, the processing after S612 may be performed. In this case, when the process proceeds to Yes in S615, the data of the information code read in S217 (S611) is deleted from the memory 35.

  Further, the reading of the information code in S611 may be performed as a separate process from S217. In this case, after the reading is successful in S217 and the process proceeds to Yes in S218, the processes after S611 are performed. do it. In this case, if the information code read in S611 is the same as the information code read in S217, or if the process proceeds to Yes in S615, the data of the information code read in S217 and S611 is read from the memory 35. It can be deleted. When the information code read in S611 is different from the information code read in S217, when the process proceeds to Yes in S615, only the data of the information code read in S611 is deleted from the memory 35. If the same information code data as the information code data read in S611 is stored in the memory 35, the stored same data may be deleted. Good.

  In the above example, when the cancel command is executed, the data of the information code read in S611 is deleted (erased). However, the same information code as the information code read in S611 has been shown. Data may be invalidated. The data invalidation may be, for example, storing data having the same information code as the information code read in S611 in a specific storage location (such as an invalidation folder). A specific flag (invalidation flag) may be stored in association with the data of the same information code to indicate that the data is invalid.

As described above, in this configuration, the control circuit 40 corresponding to the corresponding unit allows the already-read code already read by the portable information code reader 10 to change at a predetermined position from at least the time when the read code is read. When it becomes a history, it is configured to perform processing for deleting or invalidating processing data of the read code.
In this configuration, when it is desired to delete or invalidate the processing data of any information code, after the information code is read, a predetermined position change can be made within the imaging range without being removed from the imaging range of the imaging unit 23. That's fine. As described above, the processing data of the information code can be easily deleted or invalidated by a simple response of changing the predetermined position with respect to the information code desired to be canceled.

[Seventh embodiment]
Next, a seventh embodiment will be described.
The portable information code reader according to the seventh embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed according to the flow shown in FIG. For example, S201 to S218 in FIG. 10 are the same as those in the second embodiment, and the process in FIG. 19 is performed instead of the processes in S220 to S225. Further, only the reading process is different from that of the first embodiment, and other configurations are the same as those of the first embodiment. Therefore, in the following, the reading process will be described with emphasis, and detailed description of other configurations similar to those of the first embodiment will be omitted.

  Even in this configuration, the illumination light source 21 and the marker light irradiation unit 50 similar to those of the first embodiment are provided as light sources for irradiating light. An imaging unit 23 that captures an image in a predetermined imaging range is provided, and a case 12 is provided to hold these light sources (the illumination light source 21, the marker light irradiation unit 50, and the like) and the imaging unit 23. And the attachment member 60 attached to a user's body or a user's wearing thing is provided integrally with the case 12 or as a separate body from the case. The control circuit 40 corresponds to an example of a processing unit and functions to process a captured image obtained by the imaging unit 23.

  Furthermore, the control circuit 40 that executes the processing of FIG. 19 corresponds to an example of a corresponding unit, and when a predetermined instruction operation is performed on the portable information code reading device 10, the captured image is processed by the processing unit. Predetermined cancel control is performed on the processing data.

  In the process of FIG. 19, when the information code to be canceled enters the imaging range of the imaging unit 23 and is captured, this information code is read by a known decoding method (S701). The information code read in this way corresponds to the read code.

  Then, after reading the information code in S701, the movement of the information code within the imaging range of the imaging unit 23 is monitored. Specifically, from a point of time when the reading is successful in S701, for a predetermined time (for example, several seconds or tens of seconds), every predetermined short time (for example, every several milliseconds or tens of milliseconds). The captured image obtained by the imaging unit 23 is analyzed, and it is confirmed whether or not the information code read in S701 is within the captured image. The monitoring of the information code in S702 may be performed by reading the information code from a captured image obtained every predetermined short time to confirm the presence of the information code. In the captured image obtained every predetermined short time, The presence of the information code may be confirmed by detecting a predetermined portion of the information code (for example, a feature pattern such as a position detection pattern or the outer shape of the information code).

  Then, after the information code has been successfully read in S701, it is determined whether the information code has once deviated from the imaging range until a predetermined time has elapsed, and then has been read at a predetermined position (S703). After reading the information code in S701, if the information code does not fall out of the imaging range even after a lapse of a predetermined time, or after reading the information code in S701, until the predetermined time elapses If the information code is not read at a predetermined position within the imaging range until the predetermined time elapses even if it is out of the imaging range, the process proceeds to No in S703 and the processing of FIG.

  On the other hand, after the information code is read in S701 and before the predetermined time elapses, if the information code is once out of the imaging range and then read at a predetermined position in the imaging range, Yes in S703 In step S704, a cancel command is executed. When the cancel command is executed in S704, the decoded data of the information code read in S701 is erased from the memory 35. For example, in the imaging range AR as shown in FIG. 20, when the position of the region B2 is set as a predetermined position, the information code 100 read as shown in FIG. 20A in the processing of S701 is read in S701. Until the predetermined time elapses, the image is once out of the imaging range AR as shown in FIG. 20B, and thereafter, as shown in FIG. 20C until the predetermined time elapses after reading in S701. If it is read after moving to a predetermined position (area B2) within the range AR, the process proceeds to Yes in S703, and the decoded data of the information code 100 is erased from the memory 35.

  The information code reading process in S701 may be the reading process in S217. In this case, when the reading in S701 (S217) is successful, the process proceeds to Yes in S218 and proceeds to Yes in S218. In addition, the processing after S702 may be performed. In this case, when the process proceeds to Yes in S703, the data of the information code read in S217 (S701) is deleted from the memory 35.

  Further, the reading of the information code in S701 may be performed as a separate process from S217. In this case, after the reading is successful in S217 and the process proceeds to Yes in S218, the processes after S701 are performed. do it. In this case, if the information code read in S701 is the same as the information code read in S217, or if the process proceeds to Yes in S703, the data of the information code read in S217 and S701 is read from the memory 35. It can be deleted. When the information code read in S701 is different from the information code read in S217, when the process proceeds to Yes in S703, only the data of the information code read in S701 is deleted from the memory 35. If the same information code data as the information code read in S701 is stored in the memory 35, the stored same data may be deleted. Good.

  In the above example, when the cancel command is executed, the information code data read in S701 is deleted (erased). However, the same information code as the information code read in S701 is shown. Data may be invalidated. The data invalidation may be, for example, storing data with the same information code as the information code read in S701 in a specific storage location (such as an invalidation folder). A specific flag (invalidation flag) may be stored in association with the data of the same information code to indicate that the data is invalid.

As described above, in this configuration, the control circuit 40 corresponding to the corresponding unit causes the information code processed by the processing unit to no longer exist in the imaging range of the imaging unit, and after the information code does not exist, the information code When the image enters the imaging range, the cancel control is performed on the processing data.
In this configuration, when the user wants to perform cancel control for any information code, a simple operation of removing the information code from the imaging range and entering the imaging range again can be performed. Processing data can be easily canceled. In particular, since cancellation can be performed by the same response (code reading operation) as in normal reading, cancellation using a characteristic hands-free configuration is possible.

Further, in this configuration, when the information code 100 does not exist in the imaging range of the imaging unit 23 and the information code 100 is read at a predetermined position in the imaging range after the information code 100 does not exist, the cancel control for the processing data is performed. It is the composition which performs.
In this configuration, the user can cancel the existing processing data by performing a simple operation of once removing the processed information code 100 from the imaging range and placing it at a predetermined position. Further, since it is a condition for cancellation to be read at a predetermined position after deviating from the imaging range, cancellation is not performed unless such an operation is performed. That is, accidental cancellation due to unconscious movement can be effectively suppressed.

[Eighth embodiment]
Next, an eighth embodiment will be described.
The portable information code reader according to the eighth embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed according to the flow shown in FIG. For example, S201 to S218 in FIG. 10 are the same as those in the second embodiment, and the process in FIG. 21 is performed instead of the processes in S220 to S225. Further, only the reading process is different from that of the first embodiment, and other configurations are the same as those of the first embodiment. Therefore, in the following, the reading process will be described with emphasis, and detailed description of other configurations similar to those of the first embodiment will be omitted.

  Even in this configuration, the illumination light source 21 and the marker light irradiation unit 50 similar to those of the first embodiment are provided as light sources for irradiating light. An imaging unit 23 that captures an image in a predetermined imaging range is provided, and a case 12 is provided to hold these light sources (the illumination light source 21, the marker light irradiation unit 50, and the like) and the imaging unit 23. And the attachment member 60 attached to a user's body or a user's wearing thing is provided integrally with the case 12 or as a separate body from the case. The control circuit 40 corresponds to an example of a processing unit and functions to process a captured image obtained by the imaging unit 23.

  Furthermore, the control circuit 40 that executes the processing of FIG. 21 corresponds to an example of a corresponding unit, and when a predetermined instruction operation is performed on the portable information code reader 10, the captured image is processed by the processing unit. Predetermined cancel control is performed on the processing data.

  In the process of FIG. 21, when the information code to be canceled enters the imaging range of the imaging unit 23 and is captured, this information code is read by a known decoding method (S801). The information code read in this way corresponds to the read code.

  Then, after reading the information code in S801, the movement of the information code within the imaging range of the imaging unit 23 is monitored. Specifically, at a predetermined short time (for example, every several milliseconds or every several tens of milliseconds, etc.) for a certain period of time (for example, several seconds or tens of seconds) from the time when the reading is successful in S801. The captured image obtained by the imaging unit 23 is analyzed, and it is confirmed whether or not the information code read in S801 is contained in the captured image. The monitoring of the information code in S802 may be performed by reading the information code from a captured image obtained every predetermined short time to confirm the presence of the information code. In the captured image obtained every predetermined short time, The presence of the information code may be confirmed by detecting a predetermined portion of the information code (for example, a feature pattern such as a position detection pattern or the outer shape of the information code).

  Then, after the information code has been successfully read in S801, it is determined whether or not there has been a predetermined size change within a predetermined time while the information code is within the imaging range (S803). After reading the information code in S801, if the information code is out of the imaging range before the predetermined size change, or after reading the information code in S801, the information code has a predetermined size. If there is no change, the process proceeds to No in S803, and the process of FIG. On the other hand, after reading the information code in S801, if the information code continues to be within the imaging range from the time of reading and there is a predetermined size change within a certain time, the process proceeds to Yes in S803, and to S804. Execute the cancel command. When the cancel command is executed in S804, the decoded data of the information code read in S801 is erased from the memory 35. For example, the information code 100 read as shown in FIG. 22A in the process of S801 continues to be within the imaging range AR from the time of reading, and the size is a constant value as shown in FIG. 22B within a predetermined time. If it has changed, the process proceeds to Yes in S803, and the decoded data of the information code 100 is erased from the memory 35. The “predetermined size change” is, for example, a reduction change such that the length of one piece is equal to or less than a predetermined ratio (for example, ½ or less) of the length of one piece of the information code read in S801. Alternatively, it may be an enlarged change in which the length of one piece is equal to or greater than a predetermined length (for example, twice or more) of the length of one piece of the information code read in S801.

  Note that the information code reading process in S801 may be the reading process in S217. In this case, if the reading in S801 (S217) is successful, the process proceeds to Yes in S218 and proceeds to Yes in S218. In addition, the processing after S802 may be performed. In this case, when the process proceeds to Yes in S803, the data of the information code read in S217 (S801) is deleted from the memory 35.

  Further, the reading of the information code in S801 may be performed as a separate process from S217. In this case, after the reading is successful in S217 and the process proceeds to Yes in S218, the processes after S801 are performed. do it. In this case, if the information code read in S801 is the same as the information code read in S217, or if the process proceeds to Yes in S803, the data of the information code read in S217 and S801 is read from the memory 35. It can be deleted. If the information code read in S801 is different from the information code read in S217, or if the process proceeds to Yes in S803, only the data of the information code read in S801 is deleted from the memory 35. If the same information code data as the information code read in S801 is stored in the memory 35, the stored same data may be deleted. Good.

  In the above example, when the cancel command is executed, the information code data read in S801 is deleted (erased). However, the same information code as the information code read in S801 is used. Data may be invalidated. The data invalidation may be, for example, storing data having the same information code as the information code read in S801 in a specific storage location (such as an invalidation folder). A specific flag (invalidation flag) may be stored in association with the data of the same information code to indicate that the data is invalid.

In this configuration, the control circuit 40 corresponding to the corresponding unit is in a state in which the read code that has already been read by the portable information code reader 10 does not deviate from the imaging range of the imaging unit 23 at least from the time of reading the read code. Thus, when a predetermined size change state occurs within the imaging range, the processing data of the read code processed by the processing unit is deleted or invalidated.
In this configuration, when the processing data of any information code is to be deleted or invalidated, after the information code is read, the distance between the information code and the reading device is adjusted so as not to be out of the imaging range of the imaging unit. A predetermined size change may be made within the imaging range. In this way, the processing data of the information code can be easily deleted or invalidated by an extremely simple response of adjusting the distance from the information code desired to be canceled. In addition, since it is a condition that the distance from the information code is adjusted, there is no need to move the reader largely laterally with respect to the information code during the cancel operation, and the information code is not removed from the imaging range. Easy to maintain.

[Ninth Embodiment]
Next, a ninth embodiment will be described.
The portable information code reader according to the ninth embodiment is the same as that of the second embodiment except for the “predetermined cancel operation”, and the reading process is performed according to the flow shown in FIG. For example, S201 to S218 in FIG. 10 are the same as those in the second embodiment, and the process in FIG. 23 is performed instead of the processes in S220 to S225. Further, only the reading process is different from that of the first embodiment, and other configurations are the same as those of the first embodiment. Therefore, in the following, the reading process will be described with emphasis, and detailed description of other configurations similar to those of the first embodiment will be omitted.

  Even in this configuration, the illumination light source 21 and the marker light irradiation unit 50 similar to those of the first embodiment are provided as light sources for irradiating light. An imaging unit 23 that captures an image in a predetermined imaging range is provided, and a case 12 is provided to hold these light sources (the illumination light source 21, the marker light irradiation unit 50, and the like) and the imaging unit 23. And the attachment member 60 attached to a user's body or a user's wearing thing is provided integrally with the case 12 or as a separate body from the case. The control circuit 40 corresponds to an example of a processing unit and functions to process a captured image obtained by the imaging unit 23.

  Furthermore, the control circuit 40 that executes the processing of FIG. 23 corresponds to an example of a corresponding unit, and when a predetermined instruction operation is performed on the portable information code reading device 10, a captured image is processed by the processing unit. Predetermined cancel control is performed on the processing data.

  In the process of FIG. 23, when the information code to be canceled enters the imaging range of the imaging unit 23 and is captured, this information code is read by a known decoding method (S901). The information code read in this way corresponds to the read code.

  Then, after reading the information code in S901, the movement of the information code within the imaging range of the imaging unit 23 is monitored. Specifically, from the time of successful reading in S901, for a predetermined time (for example, several seconds or tens of seconds), every predetermined short time (for example, every several milliseconds or tens of milliseconds). The captured image obtained by the imaging unit 23 is analyzed, and it is confirmed whether or not the information code read in S901 is contained in the captured image. The monitoring of the information code in S902 may be performed by reading the information code from the captured image obtained every predetermined short time to confirm the presence of the information code. In the captured image obtained every predetermined short time, The presence of the information code may be confirmed by detecting a predetermined portion of the information code (for example, a feature pattern such as a position detection pattern or the outer shape of the information code).

  Then, after the information code has been successfully read in S901, it is determined whether or not there has been a predetermined shape change in the captured image (code image) of the information code within a certain time with the information code within the imaging range ( S903). After reading the information code in S901, if the information code is out of the imaging range before the code image has a predetermined shape change, or after reading the information code in S901, the information code When there is no predetermined shape change in the captured image (code image), the process proceeds to No in S903, and the process of FIG. On the other hand, after the information code is read in S901, the information code continues to be within the imaging range from the reading time, and the imaging range (code image) of the information code has a predetermined shape change within a certain time. Advances to Yes in S903, and executes a cancel command in S904. When the cancel command is executed in S904, the decoded data of the information code read in S901 is erased from the memory 35. For example, the information code 100 read as shown in FIG. 24A in the process of S901 continues to fall within the imaging range AR from the reading time, and changes in a predetermined shape as shown in FIG. 24B within a certain time. If yes, the process proceeds to Yes in S903, and the decoded data of the information code 100 is erased from the memory 35. In the “predetermined shape change”, for example, the length of any one piece forming the outer shape of the information code is equal to or less than a predetermined ratio (for example, 2/3 or less) of the length of any other piece. Such a reduction change may be possible, and a shape change in which any angle of the corner portion forming the outer shape of the information code is a predetermined angle or more (for example, 100 ° or more) or a predetermined angle or less (for example, 80 ° or less) ) And the like.

  The information code reading process in S901 may be the reading process in S217. In this case, if the reading in S901 (S217) is successful, the process proceeds to Yes in S218 and proceeds to Yes in S218. In addition, the processing after S902 may be performed. In this case, when the process proceeds to Yes in S903, the data of the information code read in S217 (S901) is deleted from the memory 35.

  In addition, the reading of the information code in S901 may be performed as a separate process from S217. In this case, after the reading is successful in S217 and the process proceeds to Yes in S218, the processes after S901 are performed. do it. In this case, if the information code read in S901 is the same as the information code read in S217, or if the process proceeds to Yes in S903, the data of the information code read in S217 and S901 is read from the memory 35. It can be deleted. If the information code read in S901 is different from the information code read in S217, or if the process proceeds to Yes in S903, only the data of the information code read in S901 is deleted from the memory 35. If the same information code data as the information code read in S901 is stored in the memory 35, the stored same data may be deleted. Good.

  In the above example, when the cancel command is executed, the information code data read in S901 is deleted (erased). However, the same information code as the information code read in S901 is displayed. Data may be invalidated. The data invalidation may be, for example, storing data having the same information code as the information code read in S901 in a specific storage location (such as an invalidation folder). A specific flag (invalidation flag) may be stored in association with the data of the same information code to indicate that the data is invalid.

In this configuration, the control circuit 40 corresponding to the corresponding unit is in a state in which the read code that has already been read by the portable information code reader 10 does not deviate from the imaging range of the imaging unit 23 at least from the time of reading the read code. Thus, when the predetermined external state is reached within the imaging range, a process for deleting or invalidating the processing data of the read code processed by the processing unit is performed.
In this configuration, when it is desired to delete or invalidate the processing data of any information code, after reading the information code, the orientation of the reading device with respect to the information code is adjusted, and the data is not removed from the imaging range of the imaging unit. What is necessary is just to make a predetermined external shape change within the imaging range. In this way, the processing data of the information code can be easily deleted or invalidated by a very simple response of adjusting the direction with respect to the information code desired to be canceled. In addition, since it is necessary to adjust the orientation with respect to the information code, it is not necessary to move the reader largely laterally with respect to the information code during the cancel operation, and the state where the information code is not removed from the imaging range is maintained. It becomes easy to do.

[Tenth embodiment]
Next, a tenth embodiment will be described.
The portable information code reader 10 according to the tenth embodiment differs from the first embodiment only in the form, and the electrical configuration is the same as that in the first embodiment. Therefore, detailed description of the electrical configuration will be omitted, and FIG. 2 will be referred to as appropriate. Further, the reading control method in the reading apparatus 10 according to the tenth embodiment may be any of the control methods of the first to ninth embodiments.

(overall structure)
The portable information code reader 10 having this configuration is mainly composed of an apparatus main body 311 and an attachment member 360. The apparatus main body 311 includes an imaging unit 23 (such as FIG. 2) that can capture the information code 100, a processing unit (control circuit 40 (FIG. 2)) that processes an image of the information code 100 captured by the imaging unit 23, The configuration includes an imaging unit 23 and a case 312 that holds the processing unit. In addition, an attachment member 360 is provided that is provided separately from the case 312 and that attaches the imaging unit 23 to the user in a configuration that images the side facing the user's face. The mounting member 360 has a flexible body mounting portion (mounting portion) 362 that can be bent and deformed, and a mounting portion 366 to which the case 312 is attached and detached, and is configured to be hung on the human body of the user. The case 312 functions to be attached to the user's ear.

First, the configuration of the apparatus main body 311 will be described.
The apparatus main body 311 contains various electronic components shown in FIG. 2 inside the case 312. In this configuration, the apparatus main body 311 can be attached to the mounting member 360 as shown in FIGS. 32 and 33, it is possible to detach.

  As shown in FIG. 35, FIG. 36, etc., the case 312 has a longitudinal and box shape as a whole. In this configuration, the front-rear direction, the width direction (horizontal direction), and the vertical direction of the apparatus main body 311 are defined as follows. First, the center direction (optical axis direction) of the field of view of the imaging unit 23 is the front-rear direction, and the longitudinal direction of the case 312 is the front-rear direction. The thickness direction of the case 312 is the width direction (lateral direction) in the direction orthogonal to the front-rear direction, and the opposite wall portion 312a of the case 312 and the opposite wall portion of the opposite wall portion 312a (front side wall). The direction facing the portion 312b) is the width direction (lateral direction). And the direction orthogonal to the said front-back direction and the width direction is the up-down direction. In the following description, the front-rear direction is the X-axis direction, the up-down direction is the Y-axis direction, and the width direction (lateral direction) is the Z-axis direction. The front direction is the X-axis positive direction, and the rear direction is the X-axis negative direction. Furthermore, the upward direction is the Y-axis positive direction, and the downward direction is the Y-axis negative direction. Then, the attachment member 360 side as viewed from the case 312 side is taken as the Z-axis negative direction, and the side opposite to the attachment member 360 is taken as the Z-axis positive direction.

  As shown in FIGS. 33, 35, and 36, the case 312 is provided with a front wall portion 312 c at the front end portion and a rear wall portion 312 d at the rear end portion in such a definition. Furthermore, a side wall (opposing wall 312a) is provided on one side (the mounting member 360 side) in the width direction (left and right direction), and a front side wall 312b is provided on the opposite side. Further, a wall portion 312e is provided at one end portion in the vertical direction, and a wall portion 312f is provided at the other end portion in the vertical direction. And the accommodating part which accommodates electronic parts, such as the image pick-up part 23 and the control circuit 40, is a box-shaped composition enclosed by these front wall parts, rear wall parts, side wall parts, wall parts, and wall parts. It is configured.

  In this configuration, the direction in which the face Fa faces with respect to the user's face Fa will be described as the front side of the face Fa, and the occipital side will be described as the back side of the face Fa.

  The case 312 includes a reading port 314 through which light from an information code can be introduced, and a light-transmitting cover member 315 is provided so as to cover the reading port 314. Further, as shown in FIG. 28, FIG. 31, and the like, the case 312 includes an extending portion 317 (a portion extending from the portion that contacts the mounting member 360 to the front side) extending in a predetermined direction from the mounting position on the mounting member 360. A reading port 314 is provided near the end of the extension 317 opposite to the mounting member 360. A cover member 315 that covers the reading port 314 is configured as a front wall portion 312c. 25 and 31, the attachment member 360 is configured such that the case 312 is disposed in a lateral position of the user's face Fa and the reading port 314 faces the front side of the user P. It is configured to be attached to the ear Ey. Thus, the case 312 is attached by the attachment member 360 so that the imaging unit 23 faces the same side as the side where the user's face faces.

  In the case 312, the wall portion 312 e on one side in the up-down direction is provided with an operation switch 42 a capable of external operation (for example, pressing operation in the up-down direction), and the wall portion 312 f on the other side is provided with an external operation. An operation switch 42b capable of (for example, a vertical pressing operation) is provided. These operation switches 42a and 42b specifically show the operation switch 42 of FIG. The operation switch 42a functions as a trigger switch, and the operation switch 42b functions as an operation switch other than the trigger switch. The memory 35 stores setting information for specifying which one of the operation switches 42a and 42b functions as a trigger switch and which one functions as another switch. The operation switches 42a and 42b It operates according to this setting information. The setting information can be rewritten by the external device PC when the case 312 is connected to the external device PC such as a computer as shown in FIG.

  In addition, an illumination light source 21 that emits illumination light, a marker light irradiation unit 50 that emits marker light, and an imaging unit 23 that images the outside of the case 312 are provided inside the case 312. Both the illumination light from the illumination light source 21 and the marker light from the marker light irradiation unit 50 are irradiated from the front wall portion 312c to the front side of the case 312 via the reading port 314. In this configuration, the imaging unit 23 and the imaging lens 27 are disposed slightly above the center in the vertical direction, and the light receiving optical axis G is positioned slightly above the center in the vertical direction. The illumination light source 21 is disposed below the center in the vertical direction, and the marker light irradiation unit 50 is disposed between the illumination light source 21 and the imaging unit 23. As shown in FIG. 37, the imaging lens 27, the lens 50a of the marker light irradiation unit 50, and the lens 21a of the illumination light source 21 are arranged at a position near the front wall 312c. The lens 50a of the marker light irradiation unit 50 is closer to the imaging lens 27 (light receiving lens). Thus, the marker light path can be made closer to the light receiving optical axis G.

Next, the attachment member 360 will be described.
As illustrated in FIGS. 25 to 31 and the like, the attachment member 360 includes a flexible body mounting portion 362 that can be bent and deformed, and a mounting portion 366 to which the case 312 is attached and detached. Is provided as a separate body. This mounting member 360 is a part that is hung on the human body of the user and held by the human body, specifically, a part that protrudes from the neck of the user on the structure of the body (in the following example, By being hung on the both ear portions), it is held by the human body and positioned at a predetermined position of the human body. As shown in FIG. 25, FIG. 31 and the like, the mounting member 360 has a configuration in which the case 312 is arranged in the lateral position of the user's face Fa and the reading port 314 faces the side where the user's face Fa faces. 312 is attached to at least the user's ear Ey.

  The body mounting portion 362 is a portion that is mounted at least partially in direct contact with the user, and specifically, is configured as an ear hooking portion that is hung on both ears of the user. As shown in FIGS. 26 to 30, the body wearing part 362 is configured to be maintained in a predetermined shape in a natural state when worn without being attached to the user, and is configured to be elastically deformable and flexible. It has a sex structure. The body mounting part 362 has a configuration in which both ends are respectively connected to a right side mounting part 370 and a left side mounting part 380 described later, and has a substantially U-shaped configuration as a whole. The body wearing portion 362 includes a right ear mounting portion (right ear hooking portion) 362a that is formed in a curved position adjacent to the right wearing portion 370 so as to protrude upward when worn on the user, A left ear mounting portion (left ear hook) 362b formed away from the right ear mounting portion 362a and curved at an adjacent position near the left mounting portion 380 so as to protrude upward, and these right An intermediate connecting portion 362c that connects the ear attaching portion 362a and the left ear attaching portion 362b is provided. The intermediate connecting portion 362c is a portion that wraps around the user's back or neck when the attachment member 360 is mounted on the user's ear as shown in FIG.

  The mounting portion 366 has a right side mounting portion 370 that is arranged on the right side of the user's face and can be attached to and detached from the case, and a left side mounting portion 380 that is arranged on the left side of the user's face and that can be attached and detached from the case. doing. In this configuration, the body mounting portion 362 extends forward from a right ear attachment portion 362a (the right ear attachment portion 362a corresponds to an example of a supported portion) that is hung on the user's right ear and supported by the right ear. The portion 363a extends to the front side (the side opposite to the intermediate coupling portion 362c). The right mounting portion 370 functions as a holding portion that holds the case 312 by being connected to the front end portion of the front extending portion 363a in the body mounting portion 362. In this configuration, when the attachment member 360 is attached to the user as shown in FIGS. 25 and 31, the front extension 363a is arranged to extend forward from the right ear attachment part 362a (supported part), The right mounting part 370 (holding part) is arranged in front of the ear hole of the right ear of the user who supports the ear attaching part 362a (supported part).

  The right mounting part 370 (holding part) includes a back surface part 371 that is supported facing the user's face at a position before the ear hole of the right ear when mounted on the human body as shown in FIGS. And a surface portion 372 disposed on the opposite side of 371. Both the back surface portion 371 and the front surface portion 372 have a flat outer surface. For example, the outer surface of the back surface portion 371 (the surface supported by the user's face) and the outer surface of the surface portion 372 (when the case 312 is attached) The surface in contact with the case 312) is substantially parallel. The thickness between the back surface portion 371 and the front surface portion 372 is larger than the thickness of the right ear mounting portion 362a, and as shown in FIG. 28 and the like, the front surface portion 372 side has a right ear mounting portion (right ear hooking portion). ) It protrudes laterally from 362a. The case 312 is held by the surface portion 372 by the right side mounting portion 370 configured as described above. The holding structure will be described in detail later.

  As shown in FIG. 25 and the like, as in the right side, in the body wearing portion 362, the left ear mounting portion 362b (the left ear mounting portion 362b is a portion of the supported portion) that is hung on the left ear of the user and supported by the left ear. The front extension part 363b extends from the front side (corresponding to an example) to the front side (the side opposite to the intermediate coupling part 362c). The left mounting portion 380 functions as a holding portion that is connected to the front end portion of the front extending portion 363 b in the body mounting portion 362 and holds the case 312. In this configuration, when the attachment member 360 is attached to the user as shown in FIG. 25, FIG. 31, and FIG. 40, the front extension part 363b extends to the front side of the left ear attachment part 362b (supported part). The left mounting portion 380 (holding portion) is arranged in a position in front of the ear hole of the left ear of the user who supports the left ear mounting portion 362b (supported portion).

  The left wearing part 380 (holding part) is a back part 381 that is supported to face the user's face at a position before the ear hole of the left ear when worn on the human body as shown in FIGS. 25, 31, and 40. And a front surface portion 382 disposed on the opposite side of the back surface portion 381. Both the back surface portion 381 and the front surface portion 382 have a flat outer surface. For example, the outer surface of the back surface portion 381 (the surface supported by the user's face) and the outer surface of the surface portion 382 (when the case 312 is attached) The surface in contact with the case 312) is substantially parallel. The thickness between the back surface portion 381 and the front surface portion 382 is larger than the thickness of the left ear mounting portion 362b, and as shown in FIG. 26 and the like, the front surface portion 382 side has a left ear mounting portion (left ear mounting portion). ) It protrudes laterally from 362a. The case 312 is held by the surface portion 382 by the left mounting portion 380 configured as described above. The holding structure will be described in detail later.

  As shown in FIGS. 33, 34, and 36, the guide portion 350 removably connects the case 312 to each mounting portion 366 provided on the mounting member 360, and each mounting portion 366 at the time of the connection. It functions to guide the case 312 so that the posture of the case 312 becomes a predetermined posture. The guide portion 350 is provided on two case side connecting portions (first case side connecting portion 351 and second case side connecting portion 352) provided on the case 312 side, and on the right mounting portion side (right mounting portion 370 side). At least two right connection portions (first right connection portion 373a, second right connection portion 373b) provided and at least two left connection portions (first attachment portion provided on the left mounting portion side (left mounting portion 380 side)). A left side connecting portion 383a and a second left side connecting portion 383b). And at least two case side connection parts (first case side connection part 351 and second case side connection part 352) and at least two right side connection parts (first right side connection part 373a, second right side connection part 373b). By being connected to each other, the case 312 is attached to the right mounting part 370, and at least two case side connection parts (first case side connection part 351 and second case side connection part 352) and at least two left side connection parts (first 1 left connecting portion 383a and second left connecting portion 383b) are connected to each other so that case 312 is attached to the left mounting portion (first left connecting portion 383a and second left connecting portion 383b). .

  As shown in FIGS. 33, 34, and 36, in this configuration, two case side connecting portions (first case side connecting portion 351 and second case side connecting portion 352) and two right side connecting portions (first right side connecting portion). 373a and the second right connecting portion 373b) correspond to the first guide portion, and the case 312 is detachably connected to the right mounting portion 370 and the case 312 is connected to the right mounting portion 370. The case 312 is guided so that the posture of the case 312 with respect to the right mounting portion 370 becomes the first predetermined posture. In addition, two case side connecting portions (first case side connecting portion 351 and second case side connecting portion 352) and two left side connecting portions (first left side connecting portion 383a and second left side connecting portion 383b) The case 312 is detachably connected to the left mounting portion 380 and the case 312 is connected to the left mounting portion 380 when the case 312 is connected to the left mounting portion 380. Guide to a predetermined posture.

  As shown in FIGS. 33, 34, and 36, in this configuration, as the two case-side coupling portions, the first case-side coupling portion 351 configured as a permanent magnet and the second case-side coupling configured as a permanent magnet. Part 352 is provided. Further, as the two right side connecting portions, a first right side connecting portion 373a configured as a permanent magnet and a second right side connecting portion 373b configured as a permanent magnet are provided, and as the two left side connecting portions, as a permanent magnet A first left connecting portion 383a configured and a second left connecting portion 383b configured as a permanent magnet are provided. The first case-side connecting portion 351 has a polarity different from that of the first right-side connecting portion 373a and the first left-side connecting portion 383a, and has the same polarity as the second right-side connecting portion 373b and the second left-side connecting portion 383b. The second case-side connecting portion 352 has a polarity different from that of the second right-side connecting portion 373b and the second left-side connecting portion 383b, and has the same polarity as the first right-side connecting portion 373a and the first left-side connecting portion 383a.

  In this configuration, the first case side connecting portion 351 and the first right side connecting portion 373a have different polarities, and the first case side connecting portion 351 and the first right side connecting portion 373a are connected to each other by suction. It has become. For example, the first case side connecting part 351 is configured as a permanent magnet whose surface part is configured as an N pole, and the first right side connecting part 373a is configured as a permanent magnet whose surface part is configured as an S pole. When the surface portions of each other face each other, they suck each other. In addition, the second case side connecting portion 352 and the second right side connecting portion 373b have different polarities, and the second case side connecting portion 352 and the second right side connecting portion 373b are connected to each other by suction. ing. For example, the second case side connecting portion 352 is configured as a permanent magnet whose surface portion is configured as an S pole, and the second right side connecting portion 373b is configured as a permanent magnet whose surface portion is configured as an N pole. When the surface portions of each other face each other, they suck each other.

  Furthermore, the first case side connecting portion 351 and the second right side connecting portion 373b have the same polarity, and the second case side connecting portion 352 and the first right side connecting portion 373a have the same polarity. In the above example, the first case side connecting portion 351 has a surface portion configured as an N pole, and the second right side connecting portion 373b also has a surface portion configured as an N pole. Sometimes they are repelling each other. The second case side connecting portion 352 has a surface portion configured as an S pole, and the first right side connecting portion 373a also has a surface portion configured as an S pole. It comes to meet each other.

  Similar to the right side, the polarities of the first case side connecting part 351 and the first left side connecting part 383a are different from each other, and the first case side connecting part 351 and the first left side connecting part 383a are sucked and connected to each other. It has a configuration. For example, the first case side connecting portion 351 is configured as a permanent magnet whose surface portion is configured as an N pole, and the first left side connecting portion 383a is configured as a permanent magnet whose surface portion is configured as an S pole. When the surface portions of each other face each other, they suck each other. In addition, the second case side connecting portion 352 and the second left side connecting portion 383b have different polarities, and the second case side connecting portion 352 and the second left side connecting portion 383b are connected to each other by suction. ing. For example, the second case side connecting portion 352 is configured as a permanent magnet whose surface portion is configured as an S pole, and the second left side connecting portion 383b is configured as a permanent magnet whose surface portion is configured as an N pole. When the surface portions of each other face each other, they suck each other.

  Furthermore, the first case side connecting portion 351 and the second left side connecting portion 383b have the same polarity, and the second case side connecting portion 352 and the first left side connecting portion 383a have the same polarity. In the above example, the first case side connecting portion 351 has a surface portion configured as an N pole, and the second left side connecting portion 383b also has a surface portion configured as an N pole. Sometimes they are repelling each other. The second case side connecting portion 352 has a surface portion configured as an S pole, and the first left side connecting portion 383a also has a surface portion configured as an S pole. It comes to meet each other.

  Such a guide portion 350 allows the case 312 to be attached to each mounting portion 366, and the orientation of the case 312 (that is, the orientation in the reading direction) is stabilized at the time of attachment. Further, by the mounting portion 366 and the guide portion 350, a front portion of the case 312 (an extension portion extending forward from the portion supported by the mounting portion 366 in the case 312) extends at least forward from the user's ear. The configuration allows the case 312 to be attached to the user's ear.

  Further, the side wall portion (opposing wall portion 312 a) on the user side of the case 312 is configured to be fitted to the right fitting portion (surface portion 372) formed in the right mounting portion 370, and the left mounting portion 380. A stepped portion 313 (fitting portion) having a shallow bottom hole shape (specifically, a shape recessed on the inner side of the case) configured to be fitted to the left fitting portion (surface portion 382) formed in When the case 312 is attached to the right mounting portion 370, the step portion 313 (fitting portion) and the right fitted portion (surface portion 372) are fitted, and the case 312 is attached to the left mounting portion 380. When attached, the stepped portion 313 (fitting portion) and the left fitting portion (surface portion 382) are fitted. And two case side connection parts 351 and 352 are arranged at the back bottom part of the step part 313 having a concave shape, and the surface part 372 or the surface part 382 enters the inside of the recess of the step part 313 at the time of fitting, It is adapted to come into contact with the bottom of the step portion 313. Thereby, not only the position holding by the magnet but also the position holding by fitting is performed, and the case 312 is not easily displaced greatly at the time of mounting. In particular, the structure is highly effective in suppressing displacement when the operation switch 42a or the operation switch 42b is pressed.

  In addition, a plurality of lead-out holes 320 for leading out sound are formed in the wall portion (opposing wall portion 312a) on the side where the case 312 is attached to the attachment member 360. The lead-out hole 320 functions as a sound emission hole for leading to the outside the sound emitted from the sound generation unit 44 (speaker or the like: FIG. 2) provided inside the case 312. In this configuration, when the case 312 is attached to the attachment member 360, at least a part (for example, all of the lead-out holes 320) is covered by a covering part (specifically, the surface parts 372 and 382) that forms a part of the attachment member 360. When the case 312 is detached from the attachment member 360 and is removed, a portion of the lead-out hole 320 that is covered by the covering portion when being attached is exposed. For example, as shown in FIG. 25 and the like, when the case 312 is attached to the right mounting portion 370, the entire lead-out hole 320 is covered by the surface portion 372 of the right mounting portion 370 so that sound emission is suppressed. It has become. On the other hand, when such a mounting state is released and the case 312 is detached from the right side mounting portion 370 and removed, a portion of the lead-out hole 320 that is covered with the surface portion 372 is exposed. The same applies to the left side. When the case 312 is attached to the left mounting part 380, the entire surface of the outlet hole 320 is covered with the surface part 382 of the left mounting part 380 so that sound emission is suppressed. . On the other hand, when the case 312 is removed from the left mounting portion 380 after the attachment state is released, a portion of the lead-out hole 320 that is covered with the surface portion 382 is exposed. Note that the position of the chain double-dashed line 366a in FIG. 36 is a position that contacts the surface portion 372 or the surface portion 382 and is covered by the surface portion 372 or the surface portion 382 when the case 312 is attached to the mounting portion 366.

  In this configuration, as shown in FIGS. 35 and 36, the apparatus main body 311 can be detached from the attachment member 360, and the apparatus main body 311 can be used or maintained separately from the attachment member 360. The apparatus main body 311 has a configuration in which a holding member 390 that holds the cable 302 is attached to the case 312. The holding member 390 can be attached and detached as shown in FIG. It has become. Further, the holding member 390 is formed with a cable support portion 391 that is fitted to the cable 302 and supports the cable 302, and the cable 302 is detached from the cable support portion 391 for use or management. As shown in FIGS. 25 and 31, the cable 302 can be held and used by the cable support portion 391 and can be managed. In this configuration, the cable support portion 391 is disposed at a position directly behind the attached portion (the portion held by the attachment member 360 in the case 312), and the cable 302 is placed near the center of the moment by the cable support portion 391. Therefore, even if the cable 302 is pulled, the direction of the case 312 is difficult to change.

  When the reading device 10 is attached to the user, as shown in FIGS. 38 and 39, the attachment member 360 is first put on both ears of the user, and then, for example, as shown in FIGS. If the apparatus main body 311 is attached to any one of the left mounting parts 380, it can be attached quickly and easily. Further, the present invention is not limited to this method, and the reader 10 may be attached to the user after being assembled as shown in FIG.

  Next, the reading process will be described. The reading apparatus 10 according to this configuration can also perform information code reading processing continuously each time a predetermined trigger condition is satisfied or after a predetermined start condition is satisfied. For example, when the operation switch is pressed, the imaging start trigger is used, and after the operation switch is pressed, the imaging process is continuously performed by the imaging unit 23, and the information code is read each time the information code enters the imaging range. It may be. Alternatively, reading may be started on the condition that a predetermined state is detected by a sensor different from the operation switch 42 (various sensor units 46 described in the first embodiment, other embodiments, and the like). For example, a known proximity sensor that detects the proximity of an object in the forward direction of the case 312 is provided, and when the object approaches, the illumination light source 21, the marker light irradiation unit 50, and the imaging unit 23 are operated to capture and decode May be performed.

  Alternatively, the voice input from the microphone is analyzed, and it is determined whether or not the voice corresponds to the predetermined voice (for example, whether or not a volume of a predetermined amount or more is detected or whether or not a voice having a predetermined waveform is detected). do it. This determination process may be performed by the reading device 10 or an external device.

  The reading apparatus according to this configuration is not limited to the mounting method and the usage method as shown in FIGS. 25 and 31 and can be used in various usage methods. For example, the external device D (FIG. 47) connected to the cable 302 may be used on the waist as shown in FIG. 25 or may be used in a pocket of the user's chest. Further, as shown in FIG. 40, the apparatus main body 311 may be temporarily or continuously removed from the attachment member 360 and used for reading. In this case, as shown in FIG. Can be placed in place.

  In this configuration, the cable 302 is detachably attached to the external device D (an external device used when reading work is used). The external device is different from the external device D by being detached from the external device D. You can also connect to. Although there are various functions of the external device D, it may function as a supply source for supplying power to the device main body 311 and information from the device main body 311 (decoded data when the information code is decoded by the device main body 311). May function as a storage medium for storing. Alternatively, a control circuit such as a CPU may be mounted on the external device D, and the code image captured by the imaging unit 23 may be decoded by the external device D.

In this configuration, the attachment member 360 is configured as a separate body from the case 312 and is disposed on the right side of the user's face, and is disposed on the left side of the user's face and the right mounting portion on which the case can be attached and detached. And a left mounting portion to which the case can be attached and detached.
According to this configuration, the case can be mounted on the right side or the left side of the user's face, and the degree of freedom of mounting is increased.

The attachment member 360 includes a right ear attachment portion attached to the user's right ear, a left ear attachment portion attached to the user's left ear, and a connecting portion that connects the right ear attachment portion and the left ear attachment portion. And have.
According to this configuration, since the attachment portion is attached to both ears, the stability at the time of wearing increases, and it becomes easier to link the movement of the face and the case more stably. Further, since the case can be attached to the ear, it is easy to attach to the human body even when other wearing tools (such as a helmet or glasses) are used.

In addition, a magnet is arranged in one of the case and the mounting portion, and a suction portion that is attracted by the magnet is arranged in the other. When the case is attached to the right attachment portion, the case and the right attachment When the case is mounted on the left side mounting part, the case and the left side mounting part are held by suction between the magnet and the suction part. .
According to this structure, even when the case is attached to the right side or the left side of the face, the case can be easily attached using the attractive force of the magnet. Moreover, it becomes easy to remove or replace the case from the mounting portion.

Also, the case or other parts assembled to the case can be fitted to the right mating part formed on the right mounting part and can be mated to the left mating part formed on the left mounting part. When the case is attached to the right mounting part, the fitting part and the right mating part are fitted, and when the case is attached to the left mounting part, the fitting part is formed. It is the structure which a part and a left side fitting part fit.
In this configuration, even when the case is attached to the right side of the face or the left side, the case is attached in a fitted state, so that the case is less likely to be displaced.

In addition, the first guide that guides the case so that the case with respect to the right mounting part becomes the first predetermined attitude when the case is detachably connected to the right mounting part and the case is connected to the right mounting part. And a second guide that guides the case so that the posture of the case with respect to the left mounting portion becomes a second predetermined posture when the case is connected to the left mounting portion and the case is connected to the left mounting portion. And a guide portion.
In this configuration, the case posture with respect to the attachment portion can be stably determined regardless of whether the case is attached to the right side or the left side of the face.

Further, the guide portion includes at least two case side connecting portions provided in the case, at least two right connecting portions provided in the right mounting portion, and at least two left connecting portions provided in the left mounting portion, The case is attached to the right mounting portion by connecting at least two case-side connecting portions and at least two right-side connecting portions, and at least two case-side connecting portions and at least two left-side connecting portions are provided. And the case are connected to the left mounting portion.
According to this configuration, even when the case is attached to the right side of the face or the left side, the two connection portions provided in the case (with respect to at least two connection portions defined in the attachment portion) (Case side connecting portion) is connected so as to be matched, and therefore, it becomes easier to set the case more accurately so that the direction of the case faces a desired direction.

In addition, as the two case side connection portions, a first case side connection portion configured as a permanent magnet and a second case side connection portion configured as a permanent magnet are provided, and as the two right side connection portions, a permanent magnet A first right connecting portion configured as a permanent magnet, a second right connecting portion configured as a permanent magnet, and as two left connecting portions, a first left connecting portion configured as a permanent magnet, and a permanent magnet And a first case-side connecting part having a polarity different from that of the first right-side connecting part and the first left-side connecting part, and a second right-side connecting part and a second left-side connecting part. The polarity is the same, and the second case side connecting portion has a different polarity from the second right connecting portion and the second left connecting portion, and the same polarity as the first right connecting portion and the first left connecting portion.
In this configuration, whether the case is mounted on the right side or the left side of the face, the case can be guided more strongly and more accurately to an appropriate position by using the force with which the magnets attract at least two positions. It is possible to reduce the burden of alignment and connection. Furthermore, even when the case is attached to the right side of the face or the left side, when the connection parts that do not correspond are attached so as to match each other, the connection parts that do not correspond have the same polarity. The connecting parts repel each other at the position, and are not connected. Therefore, whether the case is mounted on the right side or the left side of the face, it is easier to align the case with the mounting portion more accurately and quickly when it is in the correct orientation. This abnormal connection can be prevented more reliably.

In addition, the attachment portion is supported by being supported on one of the user's ears, a front extending portion extending from the supported portion, a holding portion connected to the front extending portion and holding the case At the time of attachment when the attachment portion is attached to the user, the front extension portion is arranged to extend to the front side of the supported portion, and is held at a position in front of the ear hole of the ear that supports the supported portion. The part is arranged.
In this configuration, the holding portion that holds the case is disposed in front of the user's ear canal, and thus the holding portion does not easily block the user's ear canal.

The holding portion includes a back surface portion facing the user's face at a position before the ear canal and a surface portion disposed on the opposite side of the back surface portion, and is configured to hold the case by the surface portion. ing.
In this configuration, since the case is held by the surface portion arranged at a position away from the user's face, the case held by the surface portion is less likely to block the user's ear canal.

In addition, a lead-out hole that leads out sound is formed in the wall portion of the case that is attached to the attachment portion. When the case is attached to the attachment portion, it is led out by a covering portion that forms a part of the attachment portion. At least a part of the hole is covered, and when the case is removed after being detached from the attachment portion, a portion of the lead-out hole that is covered by the covering portion at the time of attachment is exposed.
In this configuration, when the case is placed near the face, the sound can be relatively suppressed by closing the outlet hole, even when the sound source is near the user's ear, It can suppress that a loud sound reaches a user too much. On the other hand, when the case is not worn easily away from the face, the sound can be made relatively loud by exposing the lead-out hole, even if the sound source is some distance away from the user's ear Makes it easier for people to reach.

[Other Embodiments]
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  In the present embodiment, the control circuit 40 is illustrated as an example of the processing unit, and the configuration in which the code image of the information code is decoded as the processing of the image of the information code 100 captured by the imaging unit 23 is illustrated. In any configuration of the embodiment, the processing of the image of the information code 100 imaged by the imaging unit 23 is not limited to this. For example, the image data of the information code 100 imaged by the imaging unit 23 is transferred to an external device (an external device connected to the case (case 12, case 312 or the like) and a cable, or an external device not connected to the case by a cable). Processing such as transmission may be performed. In this case, the image data may be decoded on the external device side to which the image of the information code 100 is transmitted. As a result, the control circuit of the external device (specifically, an external device configured as an information processing device including a control circuit (CPU or the like), a memory or the like) is used as an external processing unit that decodes the information code 100 or the like. Can function. Alternatively, in any configuration of any of the embodiments, the information code captured by the imaging unit 23 is decoded inside the case (case 12, case 312 or the like), and the decoded data obtained by decoding is decoded outside the case. It may be sent to the device. In this case, the external device collates, for example, whether or not the decrypted data matches the registered data registered in advance in the external device or other device provided to be communicable with the external device, and the collation result is obtained. You may make it transmit to the case side (apparatus main body side).

  In the first embodiment, the case 12 is attached to the body, and the reading device 10 can communicate with an external device that is not attached to the body. However, the reading device of any embodiment is an external device that is attached to the body. It may be possible to communicate with.

  In the above-described embodiment, the body wearing unit configured to be hung on both ears is illustrated, but the body mounting unit may be configured to be hung on any one ear in any of the embodiments.

  In the above embodiment, the configuration in which the mounting member is attached to the user's human body is mainly exemplified by the configuration that is hung on the ear. However, in any configuration in any of the embodiments, the mounting member is located above the user's neck. Other configurations that can be hung on may also be used. For example, the mounting member may be hung on the user's head, and the case may be detachably attached to the mounting member, or the mounting member may be hung on the user's neck, and the case is detachably attached to the mounting member. May be. Moreover, the attachment member may be comprised as a band member attached to a user's head. For example, the attachment member may be configured as a band member having a structure such as a bee shape, a hair band shape, or a headband shape. Even in this configuration, since the case is attached to the head, the movement of the face and the entire case are interlocked, and the reading direction can be easily determined in accordance with the movement of the user's face. Moreover, the structure attached to a user's finger | toe, an arm, etc. may be sufficient as an attachment member, and it may be comprised as an attachment attached to a user's wearing thing (glasses, a helmet, gloves, clothes), etc.

  In the second to ninth embodiments, as an example of the cancel control, an example of erasing the immediately preceding process data (decoded data) or the like has been shown, but the present invention is not limited to such an example. For example, when the above-mentioned “predetermined cancel operation” is performed, past processing data (decoded data) stored in the reading device 10 may be erased all at once. A command may be issued to the external device so as to erase the past processing data (decoded data) transmitted to.

In the fourth embodiment, for example, within the cancellation waiting time T2 set in S220 of FIG. 10, the information code (the information code decoded in S217) is read within a certain time (viewing range AR (FIG. 9)). If the operation to read the information code again is performed at least once, it is recognized as a cancel command. In such a case, the decrypted data of the information code (the information code decrypted in S217) is deleted. Although the example which performs such cancellation control was shown, it is not restricted to such an example. For example, when such an operation is repeated n times, the nth previous decoded data may be canceled from the latest decoded data. Alternatively, if the information code is removed from the reading field within a certain time and returned, and then the information code is read n times while held in the field of view, the nth previous decoding data is decoded. You may make it cancel data.
In the second example of the “predetermined cancel operation” described in the second embodiment, when “predetermined pressing operation on the operation switch 42” is performed, the process proceeds to Yes in S223, and is decoded in the latest S217. Although the example of deleting the decrypted data has been shown, the present invention is not limited to such an example. For example, the decoding data to be erased may be determined by the number of times the operation switch 42 is pressed. For example, when the pressing operation of the operation switch 42 is repeated n times, the n-th previous decoded data may be canceled from the latest decoded data.

  Any of the examples of the “predetermined cancel operation” described above can be used together, and a plurality of types of instruction operations are defined as predetermined instruction operations for the portable information code reader 10, and the types of instruction operations are defined. A cancel command (deletion of the latest decrypted data, erase of the nth previous cancel data, batch erase of the stored decrypted data, etc.) may be determined in association with. Depending on the type of instruction operation performed on the portable information code reader 10, any cancel command (for example, deletion of the latest decoded data, deletion of the nth previous cancel data, accumulated decoded data) Any one of the above-mentioned batch erasure may be executed.

  In the first embodiment or the like, the sensor unit 46 is provided inside or outside the case 12. However, in the first embodiment and any other embodiments, the processing unit is at least the sensor unit 46 with a predetermined detection result. The information code may be decoded on the condition that is obtained. In any embodiment, for example, the sensor unit 46 is configured to detect a predetermined state in which the attachment member is attached to the user's ear, and the sensor unit 46 detects the predetermined state (proximity or contact of the ear is detected). On the condition that the (state) is detected, irradiation by the illumination light source 21 and the marker light irradiation unit 50 is started, and imaging by the imaging unit 23 is started, and the processing unit decodes the information code accordingly. It may be. In addition, the configuration in which the sensor unit 46 detects the predetermined state attached to the user's ear is not limited to the above-described example. For example, the sensor unit 46 is configured by a multi-axis acceleration sensor (triaxial acceleration sensor or the like), An acceleration sensor (such as a three-axis acceleration sensor) is in a predetermined acceleration state for a certain period of time (for example, an acceleration state in which any axis has an acceleration change amount within a certain value and almost no movement is detected) The “predetermined state” may be used. Alternatively, it may be configured by a three-axis sensor or the like, and irradiation or decoding may be started with a “predetermined state” when gravity acceleration occurs in a predetermined direction. Alternatively, a predetermined acceleration change due to the impact may be detected on the assumption that a command is given by impact due to tooth meshing or a foot lifting / lowering motion.

  In any configuration of any of the embodiments, voice input from the microphone 43 may be used as a trigger for decoding or lighting start. In this case, the sound input from the microphone 43 is analyzed and it is determined whether or not the sound corresponds to the predetermined sound. If so, the operation of the illumination light source 21, the operation of the marker light irradiation unit 50, the operation of the imaging unit 23, What is necessary is just to decode the information code by a captured image. Alternatively, when the sound volume of the input sound from the microphone 43 exceeds a certain value, the operation of the illumination light source 21, the operation of the marker light irradiation unit 50, the operation of the imaging unit 23, and the decoding of the information code by the captured image are performed. May be. Note that the processing for determining the voice input from the microphone 43 may be performed by the reading device 10 or an external device.

  In any configuration of any of the embodiments, the battery may be provided in a case (such as the case 12 or the case 312) attached to the body, and an external device (for example, connected to the case via a cable) It may be provided inside the external device D of the tenth embodiment.

  In the tenth embodiment, the mounting member 360 provided with the right mounting portion 370 and the left mounting portion 380 has been illustrated. However, in any configuration of the tenth embodiment or other embodiments having similar mounting members, the mounting member 360 can be mounted. The member may have a configuration with only the right mounting portion or a configuration with only the left mounting portion (that is, a configuration in which the mounting portion to which the case is attached is provided only on one ear side). In this case, only one of the mounting portions may be omitted from the configuration of the attachment member 360 of the tenth embodiment.

  In the tenth embodiment, the configuration in which the magnet is arranged in both the case 312 and the attachment member 360 is illustrated, but the magnet is arranged in either one, and the other is a magnetic body such as iron (attraction attracted by the magnet). Part) may be arranged. For example, on the case 312 side, the same magnets (first case side connecting portion 351 and second case side connecting portion 352) as those in the tenth embodiment are arranged, and the first right connecting portion 373a of the right mounting portion 370 is arranged. The second right connecting portion 373b and the first left connecting portion 383a and the second left connecting portion 383b of the left mounting portion 380 may be replaced with a magnetic material such as iron. Even in this case, when the case 312 is mounted on the right mounting portion 370, the case 312 and the right mounting portion 370 are connected to the magnet (the first case side connecting portion 351 and the second case side connecting portion 352) and the suction portion ( When the case 312 is attached to the left attachment portion 380, the case 312 and the left attachment portion 380 are magnetized (first case). The case 312 is held by suction with the first right connection portion 373a and the second right connection portion 373b). The side connection portion 351 and the second case side connection portion 352) and the suction portion (the first left side connection portion 383a and the second left side connection portion 383b) are held. Alternatively, a magnetic body (attraction part) such as iron may be disposed on the case 312 side, and a magnet may be disposed on the attachment member 360 side. For example, the first case side connecting portion 351 and the second case side connecting portion 352 are made of a magnetic material (suction portion) such as iron, and the first right side connecting portion 373a, the second right side connecting portion 373b, and the first left side connecting portion 383a. The second left connecting portion 383b may be a magnet similar to that of the tenth embodiment.

  In the tenth embodiment, as the first guide part, the configuration in which the case is attached to the right mounting part by connecting at least two case side connection parts and at least two right side connection parts, respectively, is exemplified. However, the structure which attaches a case to a right attachment part may be sufficient by connecting three or more case side connection parts and three or more right side connection parts, respectively. In addition, as the second guide portion, the configuration in which the case is attached to the left-side mounting portion by connecting the two case-side connecting portions and the two left-side connecting portions, respectively, but in any configuration, there are three or more cases The case may be configured such that the case is attached to the left mounting portion by connecting the side connecting portion and the three or more left connecting portions. Moreover, the structure which attaches a case to a right mounting part by connecting one case side connection part and one right side connection part may be sufficient. Moreover, the structure which attaches a case to a left side mounting part by connecting one case side connection part and one left side connection part may be sufficient.

  In the tenth embodiment, as the first guide portion, at least two case side connecting portions and at least two right side connecting portions are connected by magnets, respectively, and the case is attached to the right mounting portion. Two case side connection parts and at least two right side connection parts may be connected by a fitting structure or a locking structure. Moreover, at least two case side connection parts and at least two right side connection parts may each be configured in a sheet shape, and each case side connection part may be connected to a corresponding right connection part with a hook-and-loop fastener structure. In addition, as the second guide part, the configuration in which the case is attached to the left mounting part by connecting the two case side connecting parts and the two left side connecting parts, respectively, is illustrated. The left connecting portion may be connected by a fitting structure or a locking structure. Further, at least two case-side connecting portions and at least two right-side connecting portions may each be configured in a sheet shape, and each case-side connecting portion may be connected to the corresponding left-side connecting portion with a hook-and-loop fastener structure.

  In the configuration of the tenth embodiment and other embodiments, the portion for attaching the case (surface portion 372 and surface portion 382 in the tenth embodiment) is the portion to be attached to the body (right ear attachment portion 362a and left in the tenth embodiment). The ear mounting portion 362b) may be configured to be displaceable. For example, the rear surface portion 371 and the front surface portion 372 fixed to the right ear attachment portion 362a may be separated, and the front surface portion 372 may be displaced with respect to the rear surface portion 371 by a ratchet structure, a spherical pair structure, or the like. Similarly, the back surface portion 381 and the front surface portion 382 fixed to the left ear attachment portion 362b may be separated, and the front surface portion 382 may be displaceable with respect to the back surface portion 381 by a ratchet structure, a spherical pair structure, or the like.

  In the tenth embodiment, the right ear mounting portion is illustrated as the right ear mounting portion 362a, but any configuration that can be attached to the right ear is acceptable. For example, the structure which inserts and attaches an ear | edge insertion part in the ear hole of a right ear may be sufficient, and the structure which pinches | interposes and inserts a right ear may be sufficient. Or you may use together the structure attached to a right ear, the structure inserted in the ear hole of a right ear, and the right ear.

  The tenth embodiment exemplifies a configuration that is not mounted when trying to mount the right ear side or the left ear side in the opposite direction (that is, when trying to attach non-corresponding connecting portions). The idea is not limited to the example of the tenth embodiment. For example, in the configuration of the tenth embodiment, only the second case side connecting portion 352, the first right side connecting portion 373a, and the first left side connecting portion 383a may be replaced with a magnetic material such as iron. Alternatively, in the configuration of the tenth embodiment, only the first case side connecting portion 351, the second right side connecting portion 373b, and the second left side connecting portion 383b may be replaced with a magnetic material such as iron. Also in this case, if the left and right sides are attached in the opposite direction, the magnets will repel each other and will not be mounted.

  In the tenth embodiment, when the case 312 is attached to the attachment member 360, the lead-out holes 320 are all covered with the covering portion (surface portion 372 or surface portion 382) that forms part of the attachment member 360, and the case 312 is covered. In this example, the structure in which the portion (that is, all the lead-out holes 320) covered by the covering portion (the surface portion 372 or the surface portion 382) is exposed in the lead-out hole 320 at the time of removal after being detached from the attachment member 360 is illustrated. Not limited to. For example, when the case 312 is attached to the attachment member 360, only a part of the outlet hole 320 is covered by the covering portion (surface portion 372 or surface portion 382), and when the case 312 is removed from the attachment member 360, the case 312 is removed. The lead hole 320 may be configured such that a portion (that is, a part of the lead hole) covered with the covering portion (the surface portion 372 or the surface portion 382) is exposed when the lead hole 320 is attached.

  In any of the configurations of the above-described embodiments, the marker light irradiation unit 50 may clearly indicate the boundary of the visual field range or the boundary of a predetermined area within the visual field range. For example, in the configuration in which the cancel control is performed, the boundary of the visual field range or the boundary of a predetermined area within the visual field range can be visually confirmed, so that it becomes easy to perform a cancel operation based on the visual field range.

DESCRIPTION OF SYMBOLS 10 ... Portable information code reader 12, 312 ... Case 23 ... Light receiving sensor (imaging part)
21 ... Illumination light source (light source)
35. Memory (position data storage unit, setting data storage unit)
40... Control circuit (light source control unit, detection unit, processing unit, setting unit, corresponding unit, decoding unit, transmission unit)
42 ... Operation switch 48 ... Communication unit (transmission unit)
50 ... Marker light irradiation part (light source)
60, 360 ... Mounting member FP ... Position detection pattern (feature pattern)
Bs ... Dark bar (characteristic pattern)
Ws ... Light color bar (characteristic pattern)
G ... Center axis

Claims (29)

An imaging unit that captures an image of a predetermined imaging range;
A marker light irradiation unit that irradiates marker light toward the imaging range; and
An illumination light source that emits illumination light different from the marker light;
A case that holds at least the marker light irradiation unit, the illumination light source, and the imaging unit;
An attachment member provided integrally with the case or as a separate body from the case, and attached to a user's body or a user's wearing object;
A light source control unit that switches between a first control for driving the marker light irradiation unit without driving the illumination light source and a second control for driving the illumination light source;
A detection unit for detecting a predetermined feature pattern of an information code from a first captured image obtained by the imaging unit in a state in which the marker light is irradiated according to the first control by the light source control unit;
A processing unit that processes a second captured image obtained by the imaging unit in a state in which the illumination light is irradiated according to the second control by the light source control unit;
With
The imaging unit acquires the first captured image a plurality of times in a state where the marker light is irradiated according to the first control by the light source control unit,
The light source control unit controls the marker light irradiation unit and the illumination light source when the feature pattern is detected a predetermined number of times consecutively by the detection unit in the first captured image a plurality of times. The portable information code reader is switched from the second control to the second control.   The portable information code reading device according to claim 1, wherein the detection unit analyzes an irradiation area of the marker light in the first captured image and detects the feature pattern from the irradiation area. A position data storage unit that stores position data indicating the position of the irradiation region of the marker light in a captured image obtained by the imaging unit;
The detection unit specifies a position of an irradiation region of the marker light in the first captured image based on the position data stored in the position data storage unit, and the irradiation region in the first captured image The portable information code reader according to claim 2, wherein the feature pattern is detected.   4. The portable information code reading device according to claim 3, wherein the position data includes center data indicating a center position of the irradiation area and size data indicating a size centered on the center position. apparatus. The marker light irradiation unit is configured to irradiate the marker light along a central axis of an imaging range by the imaging unit,
The portable information code reading device according to claim 2, wherein the detection unit detects the feature pattern from a predetermined central region including a central portion of the first captured image. The marker light irradiating unit includes the marker light so that an irradiation shape on a plane orthogonal to the irradiation direction of the marker light has a shape including at least one of a linear shape, a substantially rectangular shape, and a substantially circular shape extending in a predetermined direction. the portable information code reading apparatus according to any one of claims 1 to 5, characterized that you irradiating. When the feature pattern is detected by the detection unit, the shutter speed at the imaging unit is changed to a second shutter speed that is faster than the first shutter speed before the feature pattern is detected by the detection unit. With a setting section to
The processing unit is set to the second shutter speed by the setting unit after the characteristic pattern is detected from the first captured image at the first shutter speed by the detection unit. The portable information code reader according to any one of claims 1 to 6, wherein the second captured image obtained by the imaging unit is processed . The setting unit, after the second image is processed by the processing unit, the shutter speed in the imaging unit, again, according to claim 7, characterized in that return to the first shutter speed Portable information code reader. 2. The apparatus according to claim 1, further comprising: a corresponding unit that performs predetermined cancel control on the processing data obtained by processing the captured image by the processing unit when a predetermined instruction operation is performed on the portable information code reader. The portable information code reading device according to claim 8 . The processor is
A decoding unit for decoding a captured image obtained by the imaging unit;
After decoding the captured image by the decoding unit, the transmission of the decoded data obtained by the decoding unit is stopped until a predetermined time elapses, and after the predetermined time elapses, the decoded data is transferred to the portable information code reader. A transmission unit for transmitting to an external device provided outside;
Have
The corresponding unit deletes the decoded data when the predetermined instruction operation is performed on the portable information code reader before the fixed time elapses after the decoded image is decoded by the decoding unit. Perform the process of invalidation,
The portable information code according to claim 9 , wherein the transmitting unit does not perform a process of transmitting the decrypted data to the external device when the decrypted data is deleted or invalidated by the corresponding unit. Reader. A setting data storage unit for storing the value of the predetermined time;
The transmission unit is configured to stop the transmission of the decrypted data based on the data stored in the setting data storage unit for the predetermined time period,
The portable information code reading apparatus according to claim 10 in which the value of the setting the predetermined time stored in the data storage unit is characterized that you have been a configurable. The portable unit according to any one of claims 9 to 11, wherein the corresponding unit performs the cancel control when a predetermined dedicated code is read by the portable information code reader. Information code reader. Equipped with an operation switch that can be operated from the outside,
The portable information code according to any one of claims 9 to 11, wherein the corresponding unit performs the cancel control when a predetermined external operation is performed on the operation switch. Reader. The corresponding unit is configured so that when the read code that has already been read by the portable information code reader is read again by the portable information code reader, the corresponding part of the read code processed by the processing unit The portable information code reading device according to any one of claims 9 to 11 , wherein processing for deleting or invalidating processing data is performed . Equipped with an operation switch that can be operated from the outside,
The corresponding unit is configured such that when a predetermined external operation is performed on the operation switch, a read code that has already been read by the portable information code reader is read again by the portable information code reader. The portable information code reading according to any one of claims 9 to 11 , wherein processing for deleting or invalidating the processing data of the read code processed by the processing unit is performed. apparatus. In the case where the processing data is generated by the processing unit when the information code included in the captured image obtained by the imaging unit is in a predetermined first imaging posture, the corresponding unit is then configured to perform the imaging unit. claim of claims 9 to the orientation from the first imaging posture when the information code is read at a predetermined angle or more different second imaging position, and performs the cancellation control for the process data by 11 The portable information code reader according to any one of the above. The corresponding unit, when the processing data is generated by the processing unit, and when the information code is continuously imaged for a predetermined time or more by the imaging unit, the cancel control for the processing data of the information code The portable information code reading device according to any one of claims 9 to 11 , wherein The corresponding unit is configured so that a read code that has already been read by the portable information code reader does not deviate from the image pickup range of the image pickup unit at least from the time when the read code is read. when a relative moving state, any one of claims 11 claim 9, characterized in that performing the process of deleting or disabling the processing data of the read code has been processed by the processing unit A portable information code reader according to claim 1. When the read code is moved to a predetermined position in the imaging range without departing from the imaging range of the imaging unit at least from the time when the read code is read, 19. The portable information code reader according to claim 18 , wherein a process for deleting or invalidating the process data is performed. The corresponding unit is configured to process the processing data of the read code when the read code already read by the portable information code reader becomes a predetermined position change history from at least the read time of the read code. The portable information code reading device according to any one of claims 9 to 11 , wherein a process of deleting or invalidating is performed. The corresponding unit is configured so that a read code that has already been read by the portable information code reader does not deviate from the image pickup range of the image pickup unit at least from the time when the read code is read. when a size change state, any one of claims 11 claim 9, characterized in that performing the process of deleting or disabling the processing data of the read code has been processed by the processing unit A portable information code reader according to claim 1. The corresponding unit is configured so that a read code that has already been read by the portable information code reader does not deviate from the image pickup range of the image pickup unit at least from the time when the read code is read. when a contour state, in any one of claims 11 claim 9, characterized in that performing the process of deleting or disabling the processing data of the read code has been processed by the processing unit The portable information code reader according to claim. When the information code processed by the processing unit does not exist in the imaging range of the imaging unit and the information code enters the imaging range after the information code is not present , the corresponding unit responds to the processing data. The portable information code reading device according to any one of claims 9 to 11 , wherein the cancel control is performed. The corresponding unit, when the information code processed by the processing unit does not exist in the imaging range of the imaging unit, and when the information code enters the imaging range within a certain time after the absence of the information code, The portable information code reader according to claim 23 , wherein the cancel control is performed on the processing data . The corresponding unit is configured such that the information code processed by the processing unit does not exist in the imaging range of the imaging unit, and the information code is read at a predetermined position in the imaging range after it no longer exists. 24. The portable information code reader according to claim 23 , wherein the cancel control is performed on the processing data . Provided with a marker light irradiation unit for irradiating marker light,
The portable information code reading device according to any one of claims 18 to 25 , wherein a boundary of the visual field range or a boundary of a predetermined area within the visual field range is specified by the marker light irradiation unit. apparatus. Said corresponding portion, after said processing data by said processing unit is generated, according to claim 9, when a plurality of codes by the imaging section is captured at the same time, and performs the cancellation control for the process data The portable information code reading device according to claim 11 . Said corresponding portion, after said processing data is generated by the processing unit, when the portable information code reading multiple codes are captured simultaneously and the plurality of codes by the device is read, the plurality of code The portable information code reading device according to any one of claims 9 to 11, wherein the cancel control is performed on the corresponding processing data. The said corresponding | compatible part performs the said cancellation control with respect to the said process data on the conditions that the said some code | cord | chord was imaged by the predetermined arrangement | sequence predetermined. 29 or 28 characterized by the above-mentioned. Portable information code reader.

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