JP4626496B2 - Memory device - Google Patents

Description

  The present invention writes data from an information processing apparatus via a general-purpose interface such as a PCMCIA (Personal Computer Memory Card International Association) interface, a USB (Universal Serial Bus) interface, a compact flash interface, or an SD (Secure Digital) memory card interface. The present invention also relates to a memory device including a readable semiconductor memory device. “Compact Flash” is a registered trademark (hereinafter the same).

  As a memory device including a semiconductor memory device capable of writing and reading data from an information processing device via a general-purpose interface, there is a memory device called a memory card, a USB memory, or a USB flash memory. 1 is a “memory card”. These data are normally written and read out by various information processing apparatuses such as a personal computer (hereinafter referred to as “personal computer”), a PDA (Personal Digital Assistant) and a mobile phone.

Such a memory device employs a general-purpose interface that is provided as standard in an information processing apparatus such as a personal computer as its interface. For this reason, these memory devices may support so-called plug and play, in which an OS (Operating System) is automatically performed without the user performing device driver installation, interrupt level setting, or the like. Many. As described above, in the case of a memory device, a “function for storing data” can be provided relatively easily to the information processing apparatus via the general-purpose interface.
JP-A-9-245132

  By the way, among devices that provide such specific functions, not only devices that support plug-and-play, but few devices that require the user to install device drivers and set interrupt levels, etc. Absent. The same can be said for normal application software, even if it is not such a device.

For example, in the case of software that performs information processing related to information codes such as barcodes and two-dimensional codes, an information code generating function (encoder) and an information code decoding function (decoder) are respectively information processing devices themselves. Therefore, encoding software and decoding software were stored on CD-ROM and provided to users. For this reason, users who have obtained such a CD-ROM need to install the software themselves on an information processing device such as a personal computer, which is likely to cause trouble, and for users who are not familiar with installation work. It tends to be an obstacle to software installation.

  In addition, when installing software stored on CD-ROM, etc., a CD-ROM drive device is required as a peripheral device for information processing devices such as personal computers, and a considerable free space is required on the hard disk, etc. Hardware resources are also likely to cause troubles and prevent software installation. Note that when software is downloaded and installed via a network such as the Internet, the CD-ROM drive device is not necessary, but the hard disk requires free space.

  As described above, when an information processing apparatus such as a personal computer is to execute specific information processing, there is a technical problem that it is necessary to install software or the like for realizing the information processing, and troubles easily occur. . Here, the case of software that performs information processing related to an information code has been described as an example, but the same technical problem can be considered for software that performs information processing related to characters.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a memory device that can easily provide information processing related to an information code. Another object of the present invention is to provide a memory device that can easily provide information processing related to characters.

In order to achieve the above object, in the memory device according to claim 1, data is transferred from the information processing apparatus via a general-purpose interface such as a PCMCIA interface, a USB interface, a compact flash interface, or an SD memory card interface. A memory device including a semiconductor memory device capable of writing and reading, and an image of an information code written from the information processing device via the general-purpose interface to an image data writing area secured in the semiconductor memory device Image data reading means for reading data from the image data writing area, and decoding the information code represented by the image data read by the image data reading means, and generating the information recorded in the information code as text data Decryption A decoding unit, or a semiconductor memory, comprising: a stage; and text data writing means for writing the text data generated by the decoding means into a text data reading area readable from the information processing apparatus via the general-purpose interface Text data reading means for reading the text data written from the information processing device through the general-purpose interface into the text data writing area secured in the apparatus from the text data writing area, and reading by the text data reading means Encoding the generated text data into the information code and generating image data of the information code, and generating the image data reading area readable from the information processing apparatus via the general-purpose interface by the encoding unit Image data of the recorded information code Encoding unit including an image data writing means, the writing, and includes at least one of, when said text data and the image data are in correspondence with each other, relevant information can be associated with each occurrence with one another Each of the text data and the image data is provided, and the related information that can be correlated is added to the text data and stored in the text data writing area or the text data reading area. A text data name distinguishable from other text data, an image data name assigned to the image data and distinguishable from other image data stored in the image data writing area or the image data reading area; And the decoding means includes the image data reading unit. When the text data corresponding to the image data of the information code read by the stage does not exist in the text data reading area, the information code represented by the image data is decoded and recorded in the information code The information is generated as text data, and the encoding means, when the image data of the information code corresponding to the text data read by the text data reading means does not exist in the image data reading area, that generate image data of the information code by encoding the text data to the information code and technical features.

In the memory device according to claim 2 , a semiconductor capable of writing and reading data from an information processing apparatus via a general-purpose interface such as a PCMCIA interface, a USB interface, a compact flash interface, and an SD memory card interface. A memory device including a memory device, wherein image data of characters written from the information processing apparatus via the general-purpose interface to an image data writing area secured in the semiconductor memory device is stored in the image data writing area Character image data reading means for reading from the character, character recognition means for executing character recognition on the image data of the character read by the character image data reading means to generate text data, and the information processing via the general-purpose interface apparatus A text data writing means for writing the text data generated by the character recognition means in a text data reading area that can be read from the memory, or a text data writing area secured in the semiconductor memory device. Text data reading means for reading out text data written from the information processing device via the general-purpose interface from the text data writing area, and characters represented by the text data read by the text data reading means are images of the characters Character image data generating means for generating data, and image data writing for writing character image data generated by the character image data generating means in an image data reading area readable from the information processing apparatus via the general-purpose interface Means including: Parts, comprising at least one of, when said text data and the image data are in correspondence with each other, the relevant information can be associated with each occurrence and are each of the text data and the image data The related information that can be associated with each other is provided to the text data, and is a text data name that can be distinguished from other text data stored in the text data writing area or the text data reading area And an image data name that is assigned to the image data and that can be distinguished from other image data stored in the image data writing area or the image data reading area. The character recognizing means applies the character image data read by the character image data reading means to the character image data. If the corresponding text data does not exist in the text data reading area, character recognition is performed on the image data to generate text data, and the character image data generating means is read by the text data reading means. when the image data of the character corresponding to the out text data does not exist in the image data reading region is a technical feature that you generate a character to which the text data is expressed as the image data of the character .

In the memory device according to claim 3 , data can be written and read from an information processing device through a general-purpose interface such as a PCMCIA interface, a USB interface, a compact flash interface, and an SD memory card interface. A memory device including a memory device, wherein image data of an information code written from the information processing device via the general-purpose interface is written into the image data writing area secured in the semiconductor memory device. Image data reading means for reading from the area, decoding means for decoding the information code represented by the image data read by the image data reading means and generating information recorded in the information code as text data, and the decoding By means Character image data generating means for generating the character represented by the generated text data as image data of the character, and the character image data generating means in an image data reading area readable from the information processing apparatus via the general-purpose interface A character image data writing means for writing the image data of the character generated by the above, or an image data writing area secured in the semiconductor memory device from the information processing device via the general-purpose interface Character image data reading means for reading out the image data of the written character from the image data writing area, and character recognition is performed on the image data of the character read by the character image data reading means to generate text data. Character recognition means and text data generated by the character recognition means An encoding unit that encodes a data into an information code and generates image data of the information code, and an information code generated by the encoding unit in an image data reading area readable from the information processing apparatus via the general-purpose interface And at least one of an encoding unit including the image data writing means for writing the image data, and when the character image data and the image data of the information code are in a corresponding relationship with each other, A data name that is commonly included in both the name of the image data and the name of the image data of the information code is assigned, and the character recognition means adds the character image data read by the character image data reading means to the character image data. When the image data of the corresponding information code does not exist in the image data reading area, the image data of the character The encoding means generates image data of the corresponding information code based on the text data generated by the character recognition means, and the decoding means reads the image data reading means. If character image data corresponding to the image data of the information code is not present in the character image data reading area, text data corresponding to the image data of the information code is generated, and the character image data generation means a technical feature that you generate image data of the character based on the generated text data.

  According to the first aspect of the present invention, at least one of the decoding unit and the encoding unit is provided. In the decoding unit, the image data reading means reads the image data of the information code written from the information processing device to the image data writing area secured in the semiconductor memory device via the general-purpose interface from the image data writing area. The information code represented by the image data read by the image data reading means is decoded by the decoding means, and the information recorded in the information code is generated as text data. Then, the text data writing means writes the text data generated by the decoding means in a text data reading area that can be read from the information processing apparatus via the general-purpose interface. In the encoding unit, the text data reading means reads the text data written from the information processing device to the text data writing area secured in the semiconductor memory device through the general-purpose interface from the text data writing area. The text data read by the text data reading means is encoded into an information code by the encoding means to generate image data of the information code. Then, the image data writing means writes the image data of the information code generated by the encoding means in an image data reading area that can be read from the information processing apparatus via the general-purpose interface.

Thereby, for example, when image data of an information code is written from the information processing apparatus to the image data writing area via the general-purpose interface, the decoding unit decodes the information code represented by the image data and converts the text as text data. Since the data is written in the data reading area, the information processing apparatus can read the text data written in the text data reading area via the general-purpose interface. Also, when text data is written from the information processing apparatus to the text data writing area via the general-purpose interface, the encoding unit encodes the text data and writes it as image data of the information code in the image data reading area. The processing device can read the image data of the information code written in the image data reading area via the general-purpose interface. In other words, the user of the information processing apparatus can decode (decode) or encode (encode) the information code simply by writing image data or text data to the memory device according to a normal procedure. Therefore, it is not necessary to install a program that realizes such a decoding unit or encoding unit in the information processing apparatus, or to secure free space etc. in the CD-ROM drive device or hard disk accompanying installation, Information processing relating to the information code can be easily provided.
In the invention of claim 1, when the text data corresponding to the image data of the information code read by the image data reading means does not exist in the text data reading area, the decoding means uses the image data. The represented information code is decoded and the information recorded in the information code is generated as text data. The encoding means encodes the text data into an information code when the image data of the information code corresponding to the text data read by the text data reading means does not exist in the image data reading area. The image data of the information code is generated. Thereby, in the decoding means, when the text data corresponding to the image data of the read information code already exists in the text data reading area, the information code represented by the image data is not decoded and the Since the information recorded in the information code is not generated as text data, duplicate processing such as generating the same text data can be prevented. Further, in the encoding means, when the image data of the information code corresponding to the read text data already exists in the image data reading area, the information code is encoded without encoding the text data into the information code. Therefore, it is possible to prevent duplicate processing such as generating image data with the same information code. Therefore, it is possible to easily provide information processing related to the information code without waste of processing.
According to the first aspect of the present invention, when the text data and the image data are in correspondence with each other, each of the text data and the image data includes related information capable of correlating each existence. Thereby, it is possible to easily determine whether or not text data corresponding to the read image data of the information code exists in the text data reading area. In addition, it is possible to easily determine whether or not the image data of the information code corresponding to the read text data exists in the image data reading area.
In the first aspect of the present invention, the text data name given to the text data (identified from other text data stored in the text data writing area or the text data reading area) as “related information that can be correlated with each other”. And the image data name given to the image data (identifiable from other image data stored in the image data writing area or the image data reading area). The data name is illustrated. Thereby, it is possible to easily determine whether or not the text data and the image data are in correspondence with each other based on the data name that is included in both the text data name and the image data name.

According to the second aspect of the present invention, at least one of the decoding unit and the encoding unit is provided. In the decoding unit, the character image data reading means reads the character image data written from the information processing device to the image data writing area secured in the semiconductor memory device through the general-purpose interface from the image data writing area. Character recognition for the character image data read by the image data reading means is executed by the character recognition means to generate text data. Then, the text data writing means writes the text data generated by the character recognition means into a text data reading area that can be read from the information processing apparatus via the general-purpose interface. In the encoding unit, the text data reading means reads the text data written from the information processing device to the text data writing area secured in the semiconductor memory device through the general-purpose interface from the text data writing area. Character data represented by the text data is generated as image data of the character by the text image data generating means from the text data read by the text data reading means. Then, the image data writing means writes the character image data generated by the character image data generating means in an image data reading area that can be read from the information processing apparatus via the general-purpose interface.

Thus, for example, when character image data is written from the information processing apparatus to the image data writing area via the general-purpose interface, the decoding unit performs character recognition on the character image data and generates text data as text data. Since the data is written in the data reading area, the information processing apparatus can read the text data written in the text data reading area via the general-purpose interface. Further, when text data is written from the information processing apparatus to the text data writing area via the general-purpose interface, the encoding unit generates the character represented by the text data as image data of the character and writes it to the image data reading area. The information processing apparatus can read out the image data of characters written in the image data reading area via the general-purpose interface. In other words, the user of the information processing apparatus can decode (character recognition) or encode (generate character image data) characters simply by writing image data or text data to the memory device according to a normal procedure. Therefore, it is not necessary to install a program that realizes such a decoding unit or encoding unit in the information processing apparatus, or to secure free space etc. in the CD-ROM drive device or hard disk accompanying installation, Information processing related to characters can be easily provided.
According to a second aspect of the present invention, when the text data corresponding to the image data of the character read by the character image data reading means does not exist in the text data reading area, the character recognition means Text data is generated by executing character recognition for. Further, the character image data generation means, if the image data of the character corresponding to the text data read by the text data reading means does not exist in the image data read area, the character image data generation means It generates as image data. Thus, the character recognition means generates text data without executing character recognition on the image data when the text data corresponding to the image data of the read character already exists in the text data reading area. Therefore, it is possible to prevent duplicate processing such as generating the same text data. The character image data generating means generates the character represented by the text data as the image data of the character when the image data of the character corresponding to the read text data already exists in the image data reading area. Therefore, it is possible to prevent duplication processing such as generating image data of the same character. Therefore, it is possible to easily provide information processing related to characters without waste of processing.
According to the second aspect of the present invention, when the text data and the image data are in correspondence with each other, each of the text data and the image data includes related information capable of correlating each existence. Thereby, it is possible to easily determine whether or not text data corresponding to the character image data of the read information code exists in the text data reading area. Further, it can be easily determined whether or not the image data of the character of the information code corresponding to the read text data exists in the image data reading area.
Further, in the invention of claim 2, the text data name given to the text data (identified from other text data stored in the text data writing area or the text data reading area) as “related information that can be correlated to each other” And the image data name given to the image data (identifiable from other image data stored in the image data writing area or the image data reading area). The data name is illustrated. Thereby, it is possible to easily determine whether or not the text data and the image data are in correspondence with each other based on the data name that is included in both the text data name and the image data name.

According to a third aspect of the present invention, at least one of a decoding unit and an encoding unit is provided. In the decoding unit, the image data reading means reads the image data of the information code written from the information processing device through the general-purpose interface to the image data writing area secured in the semiconductor memory device from the image data writing area. The information code represented by the image data read by the image data reading means is decoded by the decoding means, and the information recorded in the information code is generated as text data. Then, the text data generated by the decoding unit generates the character represented by the text data by the character image data generation unit as the image data of the character, and the image data of the generated character is Write to the image data reading area readable from the information processing apparatus via the interface. The encoding unit reads character image data written from the information processing apparatus through the general-purpose interface from the image data writing area to the image data writing area secured in the semiconductor memory device by the character image data reading means. The character recognition unit executes character recognition for the image data of the character read by the image data reading unit and generates text data. Then, the text data generated by the character recognition unit is encoded into an information code by the encoding unit to generate image data of the information code. The image data of the generated information code is general-purpose by the image data writing unit. Write to the image data reading area readable from the information processing apparatus via the interface.

  Thereby, for example, when the image data of the information code is written from the information processing apparatus to the image data writing area via the general-purpose interface, the decoding unit decodes the information code represented by the image data as text data, Furthermore, since the character represented by the text data is generated as the image data of the character and written in the image data reading area, the information processing apparatus reads the image data of the character written in the image data reading area via the general-purpose interface. be able to. Further, when character image data is written to the image data writing area from the information processing apparatus via the general-purpose interface, the encoding unit performs character recognition on the character image data and generates text data. Since the data is encoded and written as image data of the information code in the image data reading area, the information processing apparatus can read the image data of the information code written in the image data reading area via the general-purpose interface. In other words, the user of the information processing apparatus simply decodes the image data of the information code or the image data of the character into the image data of the character corresponding to the information code by simply writing the image data of the information code or the character image data into the memory device. Can be encoded (encoded) into image data of an information code corresponding to. Therefore, it is not necessary to install a program that realizes such a decoding unit or encoding unit in the information processing apparatus, or to secure free space etc. in the CD-ROM drive device or hard disk accompanying installation, Information processing regarding information codes and characters can be easily provided.

  Hereinafter, embodiments of a memory device of the present invention will be described with reference to the drawings. First, the configuration of the memory device 20 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the memory device 20.

  As shown in FIG. 1, the memory device 20 mainly includes a connection terminal 21, a first control circuit 22, a first memory 23, a second control circuit 24, a microprocessor 25, a second memory 26, a power supply circuit 27, and the like. It is configured.

  The connection terminal 21 is a physical interface that is exposed from an unillustrated housing and allows an electrical signal to be exchanged with an information processing apparatus (for example, the PDA 30; see FIG. 2). It consists of 68 pins with an electrically compliant specification. For example, 26 bits as address information (Adr) and 16 bits as data information (Dat) are allocated to the 68 pins, respectively, and 1 bit is allocated as control information (Con1, Con2). ing. In this embodiment, the PCMCIA interface is applied as an example of a general-purpose interface. However, as long as it is a general-purpose interface in an information processing apparatus, a USB interface, a compact flash interface, an SD memory card interface, a miniSD, etc. It may be a (registered trademark) card interface or the like.

  The first control circuit 22 is interposed between the information processing device connected via the connection terminal 21 and the first memory 23, and writes data from the information processing device to the first memory 23 or the first memory. 23 is a control circuit capable of controlling the reading of data from the information processing apparatus 23 to the information processing apparatus. The address bus Adr, the data bus Dat, and the control buses Con1 and Con2 are respectively connected to the connection terminal 21, and the first memory Are connected to each other by an address bus Adr, a data bus Dat, and control buses Con1 and Con2.

  The first memory 23 is a semiconductor storage device, and corresponds to, for example, an EEPROM or a DRAM. As described above, the first memory 23 is connected to the first control circuit 22 by the address bus Adr and the data bus Dat, and also between the second control circuit 24 and the address bus Adr and data bus. The buses are connected by Dat and control buses Con1 and Con2. In FIG. 1, for convenience of drawing, the first memory 23 is represented as being connected to both the first control circuit 22 and the second control circuit 24 by separate buses. Are connected by the same bus. For this reason, access control for the first memory 23 is performed between the first control circuit 22 and the second control circuit 24 that are connected via a separately provided control bus Con3 so that bus competition does not occur. Yes.

  The second control circuit 24 is a control circuit interposed between the first memory 23 and the second control circuit 24. The address bus Adr, the data bus Dat, and the control buses Con1 and Con2 are connected to the first memory 23. These are connected to each other, and are also connected to the microprocessor 25 by an address bus Adr, a data bus Dat, and control buses Con1 and Con2.

  The microprocessor 25 is an arithmetic processing device including a central processing unit, a cache memory device, and the like, and enables information processing such as arithmetic and logical operations using a second memory 26 described below as a main storage device. In addition to the above-described second control circuit 24 being connected to the processor 25, the address bus Adr, the data bus Dat, and the control buses Con1 and Con2 are also connected to the second memory 26, respectively. In FIG. 1, for convenience of drawing, the processor 25 is represented as being connected to both the second control circuit 24 and the second memory 26 by separate buses. These are connected by the same bus. Therefore, in the processor 25, access control to the processor 25 is performed via the control buses Con1 and Con2 so that bus contention does not occur between the second control circuit 24 and the second memory 26.

  The second memory 26 corresponds to the main storage device of the processor 25 described above, and includes, for example, a DRAM and an EPROM (or EEPROM). The DRAM is a semiconductor memory device that can be read and written, and is mainly used for a work area and a temporary file when the processor 25 executes arithmetic processing and the like. On the other hand, the EPROM is a read-only semiconductor memory device intended to read a previously written program, data, etc. In the case of this embodiment, for example, a program for performing basic control of the processor 25 or a data conversion program described later. Etc. are written in advance. The second memory 26 is connected to the above-described second control circuit 24 and processor 25, respectively, an address bus Adr, a data bus Dat, and control buses Con1 and Con2.

  The power supply circuit 27 is a constant voltage regulator that can convert a predetermined DC voltage supplied from the information processing device via the connection terminal 21 into a voltage that can be supplied to the processor 25 and the like, and its output is not shown. Are connected to the first control circuit 22, the first memory 23, the second control circuit 24, the processor 25, and the second memory 26, respectively.

  As described above, the connection terminal 21, the first control circuit 22, the first memory 23, the second control circuit 24, the processor 25, the second memory 26, and the power supply circuit 27 are configured, so that information can be obtained via the connection terminal 21. When there is a write request or read request for image data or text data from the processing device to the memory device 20, these data are written to the first memory 23 or read from the first memory 23. The first control circuit 22 interposed therebetween performs data flow control. Specifically, when there is a data write or read request from the information processing apparatus, the first control circuit 22 sends a write request signal or a read request signal to the first memory 23 via the control bus Con1 and Con2. The data input from the information processing device is written into the first memory 23 at a predetermined timing to be sent out, and the data read out from the first memory 23 is output to the information processing device.

  On the other hand, when there is a request to write or read image data or text data from the processor 25 to the first memory 23, the second control circuit 24 interposed between them performs data flow control. Specifically, when there is a data write or read request from the processor 25, the second control circuit 24 sends a write request signal or a read request signal to the first memory 23 via the control bus Con1 and Con2. At a predetermined timing, the data input from the information processing apparatus is written to the first memory 23, and the data read from the first memory 23 is output to the processor 25. As described above, since the control bus Con3 is connected between the first control circuit 22 and the second control circuit 24, exclusive control or the like for the first memory 23 is performed via the control bus Con3. Access control is performed.

  Next, the configuration of the PDA 30 capable of mounting the memory device 20 configured as described above will be described with reference to FIG. As shown in FIG. 2, the PDA 30 includes a main memory 32, operation keys 33, a display 34, an external storage interface 35, an external communication interface 36, a power supply control unit 37, a digital camera unit 40, a battery, with a microprocessor 31 as a center. The digital camera unit 40 further includes an imaging control unit 41, an illumination unit 42, a shutter switch 43, an imaging lens 44, an imaging element 45, an amplification unit 46, an image memory 47, and the like. Yes.

  In other words, the microprocessor 31 is connected to the main memory 32, the operation keys 33, the display 34, the external storage interface 35, the external communication interface 36, the power supply control unit 37, the imaging control unit 41, and the image memory 47. It is configured to function as a device. The main memory 32 functions as a main storage device, the operation key 33 functions as an input device, the display 34 and the external communication interface 36 function as an output device, and the external storage interface 35 functions as an input / output interface for the memory device 20. The image memory 47 functions as an input buffer for the digital camera unit 40.

  The digital camera unit 40 is configured with an imaging control unit 41 as a center. When the shutter switch 43 is turned on, illumination light is emitted from the illumination unit 42 toward the subject. Then, since the image pickup element 45 receives incident light incident through the imaging lens 44 almost simultaneously with this and outputs an image signal, the image pickup control unit 41 acquires the image signal through the amplifying unit 46 and obtains a predetermined signal. Are transferred to the image memory 47. Such an imaging process is performed with the shutter switch 43 turned on as a trigger. However, since the imaging control unit 41 needs to perform a process in cooperation with the microprocessor 31, Are connected to the microprocessor 31 so that control information can be exchanged between them.

  After mounting the memory device 20 on such a PDA 30, image data and text data are written from the PDA 30 to the memory device 20, so that the memory device 20 performs information processing as described below. In the present embodiment, as an example of the data conversion program, the first example (FIGS. 3 and 4), the second example (FIGS. 5 and 6), and the third example (FIGS. 7 and 8) are illustrated. Therefore, the following will be described in order. In the example of each process described below, for convenience, the image data of the information code is described as a JPEG file and the character image data is a TIFF file. On the contrary, the image data of the information code is converted to a TIFF file, character. There is no problem with the image data as a JPEG file.

  First, the flow of processing according to the first example of the data conversion program will be described with reference to FIGS. FIG. 3 is a flowchart showing the flow of processing according to the first example of the data conversion program, and FIG. 4 is an explanatory diagram showing the functional outline of the program according to the first example. .

  As shown in FIG. 3, in the process according to the first example of the data conversion program, first, in step S101, a process for determining whether or not image data of an information code exists in the image data writing area is performed. Specifically, as shown in FIG. 4, it is determined whether or not a JPEG file (extension jpg) as image data of an arbitrary information code exists in a folder α as an image data writing area. As a result, if it is determined that a JPEG file exists (S101; Yes), the process proceeds to the subsequent step S103. If it is determined that a JPEG file does not exist (S101; No), text data is included. Since there is no target to be converted, the process proceeds to step S113.

  In step S103, an image data reading process is performed. This process is a process of reading out image data of an information code existing in the image data writing area. In the example shown in FIG. 4, a JPEG file xxx.jpg is read out. This processing can correspond to “image data reading means” described in the claims.

  When the image data is read in step S103, a process for determining whether or not the corresponding text data exists in the text data reading area is performed in step S105. In the example shown in FIG. 4, it is determined whether or not there is a corresponding text data file (extension txt) in the folder β as the text data reading area, for example, xxx which is a JPEG file. Judge whether or not there is a text file of xxx.txt with a file name corresponding to .jpg.

  When it is determined that the corresponding text data does not exist in the text data reading area (S105; Yes), the process proceeds to the subsequent step S107, and when it is determined that it exists (S105; No), Since the corresponding text data already exists, the process proceeds to step S113. As a result, it is possible to prevent duplicate processing such as generating text data corresponding to the same information code, and to eliminate processing waste.

  In the subsequent step S107, image data decoding processing is performed. This process is a process of decoding the image data of the information code read out in step S103 with a predetermined analysis algorithm. In the example shown in FIG. 4, the image data of xxx.jpg is analyzed. Then, the analysis result (for example, binary data) is stored in the work area of the second memory 26, so that the text data generation process in the next step S109 can refer to the analysis result.

  In step S109, text data generation processing is performed. This process generates corresponding text data based on the result analyzed in step S107. In the example shown in FIG. 4, the xxx.txt text data is converted based on the binary data stored in a predetermined area. Generate. Each process in steps S105, S107, and S109 can correspond to “decoding means” described in the claims.

  In the subsequent step S111, text data writing processing is performed. In this process, the text data generated in step S109 is written as a text file in the text data reading area. Therefore, in the example shown in FIG. 4, the name of the image data (xxx.jpg) and the name of the text data (xxx.txt). The data name (xxx) included in both is given. As a result, the image data and the text data can be associated with each other, so that the correspondence can be easily grasped as in step S105 described above. This process can correspond to “text data writing means” recited in the claims. Further, the information processing means using the processor 25, the second memory 26, and the like that realize each processing in steps S103, S105, S107, S109, and S111 can correspond to the “decoding unit” recited in the claims. .

  Next, in step S113, processing for determining whether or not text data exists in the text data writing area is performed. In the example shown in FIG. 4, it is determined whether or not a text file (extension txt) as arbitrary text data exists in the folder γ as the text data writing area. As a result, when it is determined that the text file exists (S113; Yes), the process proceeds to the subsequent step S115, and when it is determined that the text file does not exist (S113; No), the image data is stored. Since there is no target to be converted, the process according to the first example is terminated.

  In step S115, text data reading processing is performed. This process is a process of reading the text data existing in the text data writing area, and in the example shown in FIG. 4, a text file yyy.txt is read. This process can correspond to “text data reading means” recited in the claims.

  When the text data is read in step S115, next, in step S117, a process for determining whether or not the image data of the corresponding information code exists in the image data reading area is performed. In the example shown in FIG. 4, whether or not there is an image data file (extension jpg) having an information code corresponding to the folder δ as the image data reading area, which has a corresponding relationship, for example, a text file. It is determined whether or not there is a yyy.jpg image data file with a file name corresponding to a certain yyy.txt.

  If it is determined that the image data of the corresponding information code does not exist in the image data reading area (S117; Yes), the process proceeds to the subsequent step S119, and if it is determined that it exists (S117; No), since the image data of the corresponding information code already exists, the process according to the first example is terminated. Thereby, it is possible to prevent duplication processing such as generation of image data of an information code corresponding to the same text data, and it is possible to eliminate processing waste.

  In subsequent step S119, an image data generation process is performed. This process generates image data of the corresponding information code based on the text data from which the text data is read out in step S115. In the example shown in FIG. 4, the information is based on the text data of yyy.txt. Generate code image data. Each process in steps S117 and S119 can correspond to “decoding means” described in the claims.

  In subsequent step S121, an image data writing process is performed. In this process, the image data of the information code generated in step S119 is written in the image data reading area as an image data file. In the example shown in FIG. 4, the name of the text data (yyy.txt) and the name of the image data A data name (yyy) included in common with (yyy.jpg) is assigned. As a result, the text data and the image data can be associated with each other, so that the correspondence can be easily grasped as in step S117 described above. When the image data writing process in step S121 ends, a series of processes according to the first example of the data conversion program ends. The processing in step S121 can correspond to “image data writing means” described in the claims. Further, the information processing means by the processor 25, the second memory 26, and the like that realize the processes in steps S115, S117, S119, and S121 can correspond to an “encoding unit” recited in the claims.

  As described above, according to the memory device 20 according to the present embodiment, the information code is transferred from the PDA 30 to the folder α of the first memory 23 via the general-purpose interface such as PCMCIA by the information processing by the data conversion program (first example). When the image data (xxx.jpg) is written, the microprocessor 25 and the second memory 26 decode the information code represented by the image data (xxx.jpg) to generate the first text data (xxx.txt). Since the data is written in the folder β of the memory 23, the PDA 30 can read out the text data (xxx.txt) written in the folder β via the general-purpose interface.

  Further, when text data (yyy.txt) is written from the PDA 30 to the folder γ through a general-purpose interface such as PCMCIA, the microprocessor 25 and the second memory 26 encode the text data (yyy.txt) and obtain an information code. Since the image data (yyy.jpg) is written in the folder δ, the PDA 30 can read the image data (yyy.jpg) of the information code written in the folder δ via the general-purpose interface.

  That is, the user of the PDA 30 can decode (decode) and encode (encode) the information code simply by writing the image data and text data to the memory device 20 according to a normal procedure. Therefore, it is not necessary to install such a data conversion program in the PDA 30 or to secure a free space or the like in the CD-ROM drive device or hard disk accompanying the installation, so that information processing relating to information codes can be easily performed. Can be provided.

  In the memory device 20 according to the present embodiment, when the text data (xxx.txt) corresponding to the image data (xxx.jpg) of the information code read from the folder α already exists in the folder β ( S105; No), since the information code represented by the image data (xxx.jpg) is not decoded and the information recorded in the information code is not generated as text data (xxx.txt). Duplicate processing such as generating text data (xxx.txt) can be prevented. Similarly, when image data (yyy.jpg) of an information code corresponding to text data (yyy.txt) read from the folder γ already exists in the folder δ (S117; No), the text data ( Since yyy.txt) is not encoded into an information code and image data (yyy.jpg) of the information code is not generated, duplicate processing such as generating image data (yyy.jpg) of the same information code Can be prevented. Therefore, it is possible to easily provide information processing related to the information code without waste of processing.

  Next, the flow of processing according to the second example of the data conversion program will be described with reference to FIGS. FIG. 5 is a flowchart showing the flow of processing according to the second example of the data conversion program. FIG. 6 is an explanatory diagram showing the functional outline of the program according to the second example. .

  As shown in FIG. 5, in the processing according to the second example of the data conversion program, first, in step S201, processing for determining whether character image data exists in the image data writing area is performed. Specifically, as shown in FIG. 6, it is determined whether or not a TIFF file (extension tif) as image data of an arbitrary character exists in the folder α as the image data writing area. As a result, when it is determined that the TIFF file exists (S201; Yes), the process proceeds to the subsequent step S203, and when it is determined that the TIFF file does not exist (S201; No), the text data is converted. Since there is no target to be converted, the process proceeds to step S213.

  In step S203, an image data reading process is performed. This process is a process for reading out image data of characters existing in the image data writing area. In the example shown in FIG. 6, uuu.tif, which is a TIFF file, is read out. This process can correspond to “character image data reading means” recited in the claims.

  When the image data is read out in step S203, a process for determining whether or not the corresponding text data exists in the text data reading area is performed in step S205. In the example shown in FIG. 6, whether or not there is a corresponding text data file (extension txt) in the folder β as the text data reading area, for example, a TIFF file uuu Judge whether or not there is a text file of uuu.txt with a file name corresponding to .tif.

  If it is determined that the corresponding text data does not exist in the text data reading area (S205; Yes), the process proceeds to the subsequent step S207, and if it is determined that it exists (S205; No), Since the corresponding text data already exists, the process proceeds to step S213. Thereby, it is possible to prevent duplication processing such as generating text data corresponding to the same character, and to eliminate waste of processing.

  In subsequent step S207, image data decoding processing is performed. This process is a process of decoding the character image data read in step S203 by a predetermined analysis algorithm. In the example shown in FIG. 6, the image data of uuu.tif is analyzed. Then, the analysis result (for example, binary data) is stored in the work area of the second memory 26 so that the text data generation process in the next step S209 can refer to the analysis result.

  In step S209, text data generation processing is performed. This process generates corresponding text data based on the result analyzed in step S207. In the example shown in FIG. 6, the text data of uuu.txt is converted based on binary data stored in a predetermined area. Generate. Each process in steps S205, S207, and S209 can correspond to “character recognition means” recited in the claims.

  In subsequent step S211, text data writing processing is performed. In this process, the text data generated in step S209 is written in the text data reading area as a text file. Therefore, in the example shown in FIG. 6, the name of the image data (uuu.tif) and the name of the text data (uuu.txt) The data name (uuu) included in both is given. As a result, the image data and the text data can be associated with each other, so that the correspondence can be easily grasped as in step S205 described above. This process can correspond to “text data writing means” recited in the claims. Further, the information processing means by the processor 25, the second memory 26, etc. for realizing the processes in steps S203, S205, S207, S209, and S211 can correspond to the “decoding unit” recited in the claims. .

  Next, in step S213, processing for determining whether or not text data exists in the text data writing area is performed. In the example shown in FIG. 6, it is determined whether or not a text file (extension txt) as arbitrary text data exists in the folder γ as the text data writing area. As a result, if it is determined that the text file exists (S213; Yes), the process proceeds to the subsequent step S215. If it is determined that the text file does not exist (S213; No), the image data is stored. Since there is no target to be converted, the process according to the second example is terminated.

  In step S215, a text data reading process is performed. This process is a process of reading the text data existing in the text data writing area. In the example shown in FIG. 6, vvv.txt which is a text file is read. This process can correspond to “text data reading means” recited in the claims.

  When the text data is read in step S215, next, in step S217, a process for determining whether or not the corresponding character image data exists in the image data reading area is performed. In the example shown in FIG. 6, whether or not there is a character image data file (extension jpg) corresponding to the folder δ as the image data reading area that has a corresponding relationship, for example, a text file. It is determined whether there is no vvv.tif image data file with a file name corresponding to vvv.txt.

  If it is determined that the image data of the corresponding character does not exist in the image data reading area (S217; Yes), the process proceeds to the subsequent step S219, and if it is determined that it exists (S217; No) ) Since the corresponding character image data already exists, the processing according to the first example is terminated. Accordingly, it is possible to prevent duplication processing such as generation of character image data corresponding to the same text data, and it is possible to eliminate waste of processing.

  In subsequent step S219, an image data generation process is performed. This process generates image data of the corresponding character based on the text data from which the text data is read out in step S215. In the example shown in FIG. 6, the character data is generated based on the text data of vvv.txt. Generate image data. Each process in steps S217 and S219 can correspond to “character image data generation means” described in the claims.

  In subsequent step S221, an image data writing process is performed. In this process, the character image data generated in step S219 is written in the image data reading area as an image data file. Therefore, in the example shown in FIG. 6, the text data name (vvv.txt) and the image data name ( vvv.tif) and the data name (vvv) included in both. As a result, the text data and the image data can be associated with each other, so that the correspondence can be easily grasped as in step S217 described above. When the image data writing process in step S221 ends, a series of processes according to the second example of the data conversion program ends. Note that the processing in step S221 can correspond to “image data writing means” recited in the claims. Further, the information processing means by the processor 25, the second memory 26, and the like that realize the processes in steps S215, S217, S219, and S221 can correspond to an “encoding unit” recited in the claims.

  As described above, according to the memory device 20 according to the present embodiment, by the information processing by the data conversion program (second example), for example, characters are transferred from the PDA 30 to the folder α of the first memory 23 via the general-purpose interface such as PCMCIA. When the image data (uuu.tif) is written, the microprocessor 25 and the second memory 26 execute character recognition for the image data (uuu.tif) of this character and generate it as text data (uuu.txt). Since the data is written in the folder β of the memory 23, the PDA 30 can read out the text data (uuu.txt) written in the folder β via the general-purpose interface.

  When text data (vvv.txt) is written from the PDA 30 to the folder γ via a general-purpose interface such as PCMCIA, the microprocessor 25 and the second memory 26 use the text data (vvv.txt) as an image of the character. Since it is generated as data (vvv.tif) and written in the folder δ, the PDA 30 can read out the character image data (vvv.tif) written in the folder δ via a general-purpose interface.

  That is, the user of the PDA 30 can decode characters (character recognition) and encode (generate character image data) simply by writing image data and text data to the memory device 20 in a normal procedure. Therefore, it is not necessary to install such a data conversion program in the PDA 30 or to secure a free space etc. in the CD-ROM drive device or hard disk accompanying the installation. can do.

  In the memory device 20 according to the present embodiment, when the text data (uuu.txt) corresponding to the character image data (uuu.tif) read from the folder α already exists in the folder β (S205). No), no character recognition is performed on the image data (uuu.tif), and text data (uuu.txt) is not generated, so that the same text data (uuu.txt) is generated. Can be prevented. Similarly, when image data (vvv.tif) of characters corresponding to the text data (vvv.txt) read from the folder γ already exists in the folder δ (S217; No), the text data (vvv.txt) .txt) is not generated as image data (vvv.tif) of the character, so that it is possible to prevent duplicate processing such as generating image data (vvv.tif) of the same character. Therefore, it is possible to easily provide information processing related to characters without waste of processing.

  Next, the flow of processing according to the third example of the data conversion program will be described with reference to FIGS. FIG. 7 is a flowchart showing the flow of processing according to the third example of the data conversion program, and FIG. 8 is an explanatory diagram showing the functional outline of the program according to the third example. .

  Since the processing according to the third example of the data conversion program is configured by combining the processing according to the first and second examples described so far, in FIG. 7, the processing steps of FIG. 3 and the processing of FIG. Constituent parts that are substantially the same as those in the steps are denoted by the same reference numerals, and the description will be simplified.

  As shown in FIG. 7, in the process according to the third example of the data conversion program, first, in step S101 and S103, when image data of an information code exists in the image data writing area (S101; Yes), the image The image data of the information code is read out by the data reading process. In step S301, a process is performed to determine whether the image data of the corresponding character exists in the image data reading area. In the example shown in FIG. 8, whether or not there is a corresponding character image data file (extension tif) in the folder δ as the image data reading area, for example, a JPEG file. It is determined whether or not there is an xxx.tif image data file with a file name corresponding to a certain xxx.jpg. Note that the processing in step 103 can correspond to “image data reading means” recited in the claims.

  If it is determined that the image data of the corresponding character does not exist in the image data reading area (S301; Yes), the process proceeds to the subsequent step S107, and if it is determined that it exists (S301; No). ) Since the corresponding character image data already exists, the process proceeds to step S201. Thereby, it is possible to prevent duplication processing such as generation of character image data corresponding to the same information code, and it is possible to eliminate waste of processing.

  In the subsequent step S107, image data decoding processing is performed, and in step S109, text data generation processing is performed. As a result, text data corresponding to the image data of the information code is generated. In the subsequent step S219, image data of the corresponding character is generated based on the text data. In the example shown in FIG. 8, the character generator generates character image data based on the xxx.txt text data output from the decoder. Each process in steps S107 and S109 can correspond to “decoding means” recited in the claims. The processing in step S219 can correspond to “character image data generation means” described in the claims.

  When image data writing processing is performed in the next step S211, character image data (xxx.tif) is written in the folder δ. Again, by adding the data name (xxx) included in both the name of the information code image data (xxx.jpg) and the character image data name (xxx.tif), it is easy for both. The correspondence relationship can be grasped. This process can correspond to “character image data writing means” recited in the claims. Further, the information processing means by the processor 25, the second memory 26, etc. for realizing each processing in steps S107 and S109 can correspond to the “decoding unit” recited in the claims, and in accordance with steps S219 and S211. The information processing means by the processor 25, the second memory 26, and the like that realize each processing can correspond to a “character generation unit” recited in the claims.

  Next, if there is character image data in the image data writing area in steps S201 and S203 (S201; Yes), the character image data is read out by image data reading processing. Then, in step S303, a process for determining whether or not the image data of the corresponding information code exists in the image data reading area is performed. In the example shown in FIG. 8, whether or not there is an image data file (extension jpg) having a corresponding information code in the folder δ serving as an image data reading area, that is, for example, a TIFF file. It is determined whether or not there is an image data file of uuu.jpg assigned a file name corresponding to uuu.tif. Note that the processing in step 203 can correspond to “character image data reading means” recited in the claims.

  If it is determined that the image data of the corresponding information code does not exist in the image data reading area (S303; Yes), the process proceeds to the subsequent step S207, and if it is determined that it exists (S303; No) Since the image data of the corresponding information code already exists, there is no target to be converted into the image data of the information code, so the processing according to the third example is terminated. Thereby, it is possible to prevent duplication processing such as generation of image data of an information code corresponding to the same character, and it is possible to eliminate processing waste.

  In subsequent step S207, image data decoding processing is performed, and in step S209, text data generation processing is performed. As a result, text data corresponding to the character image data is generated. In the subsequent step S119, image data of the corresponding information code is generated based on the text data. In the example shown in FIG. 8, the encoding unit generates image data of an information code based on uuu.txt text data output from the character recognition unit. Each process in steps S207 and S209 can correspond to “character recognition means” recited in the claims. The processing in step S119 can correspond to “encoding means” described in the claims.

  When the image data writing process is performed in the next step S121, the image data (uuu.jpg) of the information code is written in the folder δ. Again, by adding the data name (uuu) that is included in both the character image data name (uuu.tif) and the information code image data name (uuu.jpg), it is easy for both. The correspondence relationship can be grasped. This process may correspond to “image data writing means” described in the claims. Further, the information processing means by the processor 25, the second memory 26, and the like that realize each processing in steps S207 and S209 can correspond to the “character recognition unit” recited in the claims, and steps S119 and S121. The information processing means by the processor 25, the second memory 26, and the like that realize each processing according to the above can correspond to an “encoding unit” recited in the claims.

  As described above, according to the memory device 20 according to the present embodiment, the information code is transferred from the PDA 30 to the folder α of the first memory 23 through the general-purpose interface such as PCMCIA by the information processing by the data conversion program (third example). When the image data (xxx.jpg) is written, the microprocessor 25 and the second memory 26 decode the information code represented by the image data (xxx.jpg) as text data (xxx.txt), and Since the character represented by the text data (xxx.txt) is generated as image data (xxx.tif) of the character and is written in the folder δ of the first memory 23, the PDA 30 is an image of the character written in the folder δ. Data (xxx.tif) can be read through the general-purpose interface. When character image data (uuu.tif) is written from the PDA 30 to the folder α via a general-purpose interface such as PCMCIA, the microprocessor 25 and the second memory 26 correspond to the character image data (uuu.tif). Character recognition is performed and generated as text data (uuu.txt). Further, this text data (uuu.txt) is encoded and written in the folder δ as image data (uuu.jpg) of the information code. The image data (uuu.jpg) of the information code written in the folder δ can be read out via the general-purpose interface.

  That is, the user of the PDA 30 simply decodes the image data of the information code or the image data of the character into the memory device 20 according to a normal procedure, and decodes (decodes) the character data to the character image data corresponding to the information code. It is possible to encode (encode) image data with a corresponding information code. Therefore, it is not necessary to install such a data conversion program in the PDA 30 or to secure a free space or the like in the CD-ROM drive device or hard disk accompanying the installation, so that information processing relating to information codes can be easily performed. Can be provided.

  In the above-described embodiment, the image data and the text data are configured to be operable by the concept of a file. However, in the present invention, the present invention is not limited to this. For example, the image data and text data are simply arranged in the storage space of the first memory 23. Even with data strings having various data structures such as sequential and random, the same operations and effects as described above can be obtained.

  In the above-described embodiment, image data and text data are configured so that they can be operated together for each data type based on the concept of a folder. However, in the present invention, the present invention is not limited to this. It may be summarized in the concept of directory, and it is not essential to summarize in such a concept. Furthermore, it is not essential to collect data for each type of data in the same folder.

  Furthermore, in the above-described embodiment, JPEG format or TIFF format is exemplified as the image data. However, the present invention is not limited to this, and for example, bitmap format (extension bmp) or gif format (extended) The same operation and effect as described above can be obtained even with a file in a format other than these, such as a child gif). In addition, although the text data in the standard text format (extension txt) has been illustrated, the present invention is not limited to this, for example, a rich text format (extension rtf) file, or a file in a format other than these However, the same actions and effects as described above can be obtained.

It is a block diagram which shows the structure of the memory device which concerns on embodiment of this invention. It is a block diagram which shows the structure of PDA with a digital camera. It is a flowchart which shows the flow of a process by the 1st example of the data conversion program stored in the 2nd memory of the memory device which concerns on this embodiment. It is explanatory drawing which shows the function outline | summary of the program shown in FIG. It is a flowchart which shows the flow of a process by the 2nd example of the data conversion program stored in the 2nd memory of the memory device which concerns on this embodiment. It is explanatory drawing which shows the function outline | summary of the program shown in FIG. It is a flowchart which shows the flow of a process by the 3rd example of the data conversion program stored in the 2nd memory of the memory device which concerns on this embodiment. It is explanatory drawing which shows the function outline | summary of the program shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 ... Memory device 21 ... Connection terminal 22 ... 1st control circuit 23 ... 1st memory (semiconductor memory device)
24 ... Second control circuit 25 ... Microprocessor 26 ... Second memory 27 ... Power supply circuit 30 ... PDA (information processing device)
α ... Folder (image data writing area)
β ... Folder (text data reading area)
γ ... Folder (text data writing area)
δ ... Folder (image data reading area)

Claims (3)

A memory device including a semiconductor memory device capable of writing and reading data from an information processing device via a general-purpose interface such as a PCMCIA interface, a USB interface, a compact flash (registered trademark) interface, and an SD memory card interface,
Image data reading means for reading out the image data of the information code written from the information processing device through the general-purpose interface to the image data writing area secured in the semiconductor memory device, and the image Decoding means for decoding the information code represented by the image data read by the data reading means and generating the information recorded in the information code as text data, and reading from the information processing device via the general-purpose interface A text data writing unit for writing the text data generated by the decoding unit in a text data reading area,
Alternatively, text data reading means for reading text data written from the information processing device through the general-purpose interface into the text data writing area secured in the semiconductor memory device, and the text data Encoding means for encoding the text data read by the reading means into the information code and generating image data of the information code; and an image data reading area readable from the information processing apparatus via the general-purpose interface. An image data writing means for writing image data of the information code generated by the encoding means;
Comprising at least one of,
When the text data and the image data are in a corresponding relationship with each other, the text data and the image data are each provided with related information capable of correlating each existence,
The related information that can be correlated to each other is as follows:
A text data name assigned to the text data and distinguishable from other text data stored in the text data writing area or the text data reading area, and given to the image data, the image data writing area or A data name that is commonly included in both of the image data name that can be distinguished from other image data stored in the image data reading area,
When the text data corresponding to the image data of the information code read by the image data reading means does not exist in the text data reading area, the decoding means displays the information code represented by the image data. Decrypt and generate information recorded in the information code as text data,
If the image data of the information code corresponding to the text data read by the text data reading means does not exist in the image data reading area, the encoding means encodes the text data into the information code. memory device characterized that you generate image data of the information code turned into. A memory device including a semiconductor memory device capable of writing and reading data from an information processing device via a general-purpose interface such as a PCMCIA interface, a USB interface, a compact flash (registered trademark) interface, and an SD memory card interface,
Character image data reading means for reading character image data written from the information processing device through the general-purpose interface to the image data writing area secured in the semiconductor memory device, and the character data Character recognition means for generating text data by performing character recognition on the image data of the character read by the image data reading means, and a text data reading area readable from the information processing apparatus via the general-purpose interface A text data writing means for writing the text data generated by the character recognition means;
Alternatively, text data reading means for reading text data written from the information processing device through the general-purpose interface into the text data writing area secured in the semiconductor memory device, and the text data Character image data generating means for generating characters represented by text data read by the reading means as image data of the character, and the character image in an image data reading area readable from the information processing apparatus via the general-purpose interface An image data writing means for writing character image data generated by the data generating means, and an encoding unit,
Comprising at least one of,
When the text data and the image data are in a corresponding relationship with each other, the text data and the image data are each provided with related information capable of correlating each existence,
The related information that can be correlated to each other is as follows:
A text data name assigned to the text data and distinguishable from other text data stored in the text data writing area or the text data reading area, and given to the image data, the image data writing area or A data name that is commonly included in both of the image data name that can be distinguished from other image data stored in the image data reading area,
The character recognition means executes character recognition for the image data when text data corresponding to the image data of the character read by the character image data read means does not exist in the text data read area. To generate text data
The character image data generation means, if the character image data corresponding to the text data read by the text data read means does not exist in the image data read area, the character image data generation means memory device characterized that you generated as character image data. A memory device including a semiconductor memory device capable of writing and reading data from an information processing device via a general-purpose interface such as a PCMCIA interface, a USB interface, a compact flash (registered trademark) interface, and an SD memory card interface,
Image data reading means for reading out the image data of the information code written from the information processing device through the general-purpose interface to the image data writing area secured in the semiconductor memory device, and the image Decoding means for decoding the information code represented by the image data read by the data reading means and generating the information recorded in the information code as text data, and the characters represented by the text data generated by the decoding means Character image data generating means for generating image data of the character, and image data of the character generated by the character image data generating means in an image data reading area readable from the information processing apparatus via the general-purpose interface. A character image data writing means for writing, and a decoding unit,
Or, character image data reading means for reading out image data of characters written from the information processing device via the general-purpose interface to the image data writing area secured in the semiconductor memory device; Character recognition means for generating text data by executing character recognition on the character image data read by the character image data reading means, and encoding the text data generated by the character recognition means into an information code Encoding means for generating image data of the code, and image data writing for writing the image data of the information code generated by the encoding means to an image data reading area readable from the information processing apparatus via the general-purpose interface Means for encoding,
Comprising at least one of
If the image data of the character and the image data of the information code have a corresponding relationship, a data name that is included in both the name of the image data of the character and the name of the image data of the information code And grant
When the image data of the information code corresponding to the character image data read by the character image data reading means does not exist in the image data reading area, the character recognition means Generating text data, the encoding means generates image data of a corresponding information code based on the text data generated by the character recognition means;
When the character image data corresponding to the image data of the information code read out by the image data reading means does not exist in the character image data read-out area, the decoding means converts the image data of the information code into the image data of the information code. It generates a corresponding text data, the character image data generating means, a memory device which is characterized that you generate image data of the character based on the generated text data.

Images