JP4881785B2 - Remote control system - Google Patents

Description

  The present invention relates to a remote control device that controls and operates an electronic device, an electronic device controlled by the remote control device, and a remote control system that includes a combination of the remote control device and an electrical device, and more particularly, a control target electronic designated from a plurality of electronic devices The present invention relates to a remote control device capable of selectively controlling equipment.

A multi-screen device that forms a large screen combining a plurality of display devices is used in streets, stations, halls, stadiums, and the like. Since such a multi-screen device combines a plurality of display devices, luminance unevenness and color unevenness between the screens of each display device are easily noticeable. Therefore, it is necessary to perform image adjustment such as adjustment of luminance unevenness and color unevenness of each display device, white balance adjustment, and gamma adjustment. Moreover, since luminance unevenness and color unevenness change with time, adjustment must be made each time. Adjustment of luminance unevenness and color unevenness can be performed together with image adjustment such as white balance adjustment and gamma adjustment using a remote control device. However, since a transmission signal of the remote control device has wide directivity, one display device Cannot be selected, and adjacent display devices are also adjusted at the same time.
In addition, when a display device or a television receiver is individually controlled and operated in a place where many types of display devices or television receivers are arranged like an electronic store, a plurality of displays can be displayed on one remote control device. The device or the television receiver reacted and it was difficult to control and operate the device individually.

A technique for adjusting the video characteristics of each display device constituting a multi-screen device is disclosed in Patent Document 1.
Patent Document 1 sets a unique identification number for each display device that constitutes a multi-screen device, and selects and displays a specific display device according to the identification number when adjusting video characteristics individually for each display device. A video characteristic adjustment signal is supplied to the display device.
Patent Document 2 relates to a technique for supplying a video signal displayed by each display device that constitutes the multi-screen display device, and supplies the same video signal to each display device that constitutes the multi-screen display device. The display device enlarges and displays a portion of the supplied video signal to be displayed. Alternatively, each display device enlarges the supplied video signal and selects and displays a portion to be displayed among the enlarged video signal. For this purpose, it is necessary to set the number of displays constituting the multi-screen display device in each display device and the video display position of the display device among the entire video.
In order to respond to such a request, Patent Document 2 sets different identification numbers for each display, registers the identification numbers of all displays in the remote control device, and selects a predetermined display from the identification numbers by the remote control. The command is transmitted together with the identification number.

On the other hand, various recent electronic devices such as TV receivers and their peripheral video devices, AV devices such as DVD devices, audio devices, personal computers and printers as peripheral devices, air conditioners and lighting devices are controlled by a remote controller. It can be operated. However, since each of these devices has a remote controller, the user must use a different remote controller for each device. This is because when the remote control uses infrared light having a relatively wide directivity and all the devices can be operated with one remote control, not only one device to be operated is operated, but also around it. This is because a remote control code is changed for each manufacturer for each manufacturer because a certain device is also operated.
In response to such a problem, Patent Document 3 discloses a remote control device that uses visible laser light as a directivity signal that specifies a device to be controlled and uses infrared light as a device control signal.
Japanese Patent Laid-Open No. 2004-211986 JP 2003-319290 A JP 11-312009 A

  However, Patent Documents 1 and 2 are complicated because an identification number must be set for each display in advance. In Patent Document 3, when a directional signal specifying a control target device is received, it is necessary to maintain a standby state, and thus control of the control target device may become unstable.

  The present invention solves the above problems and provides a remote control device that can selectively control and operate an electronic device designated from a plurality of electronic devices. In addition, the present invention provides a remote control device that can prevent remote control lock, that is, reception of a remote control that is not a specific code, by specifying a remote control code.

In order to solve the above-described problem, the remote control device according to the present invention transmits a device designation signal having a first directivity to at least one control target electronic device selected from a plurality of electronic devices. And a second directivity having a wider directivity than the first directivity to the plurality of electronic devices including the control target electronic device that has received the device designation signal and changed from the first mode to the second mode. Second transmission means for transmitting a control device control signal.
Thereby, one electronic device selected from a plurality of electronic devices can be controlled and operated.

In the embodiment of the remote control device of the present invention, it is preferable that the device control signal includes a special code. The special code is preferably generated by changing a specific bit of a remote control code constituting the device control signal. The second mode is preferably a mode in which the electronic device to be controlled can receive and decode the special code.
As a result, it is possible to identify, control, and operate the electronic device that has been reliably specified.
In the embodiment of the remote control device of the present invention, it is preferable that the special code is a user-specific code. Thereby, a controllable user can be specified and the remote control can be locked.

  According to another aspect of the present invention, there is provided a first receiving unit that receives an apparatus designation signal transmitted from a remote control device, and an apparatus control that controls the electronic device transmitted from the remote control apparatus, according to another aspect. A second receiving unit for receiving a signal; a mode changing unit for changing the electronic device from the first mode to the second mode when the first receiving unit receives the device designation signal; and the electronic device in the first mode. When there is a certain time and when in the second mode, a control unit having different types of the device control signals to be processed is provided to solve the above problem.

Furthermore, according to another aspect, the present invention is a remote control system that solves the above-described problem, wherein the remote control device is a device having a first directivity in the electronic device to be controlled selectively from a plurality of electronic devices. A directivity wider than the first directivity is applied to the electronic device including the first transmission unit that transmits the designation signal and the control target electronic device that has received the device designation signal and changed from the first mode to the second mode. And a second transmitting means for transmitting a device control signal having the second directivity having the first characteristic, and the electronic device is transmitted from the remote control device, a first receiving unit for receiving a device designation signal transmitted from the remote control device. A second receiving unit that receives a device control signal for controlling the electronic device, and a mode changing unit that changes the electronic device from the first mode to the second mode when the first receiving unit receives the device designation signal; , Electronic equipment is the first And when in the mode, when in the second mode, and a type of the device control signal to be processed is different controller.
As a result, a remote control system for selectively controlling and operating an electronic device designated from a plurality of electronic devices is provided.

Furthermore, in the embodiment, the remote control system according to the present invention can selectively select a multi-screen device in which a plurality of display devices each having a first receiving unit and a second receiving unit are arranged in a matrix, and the plurality of display devices. A first transmission unit configured to transmit a device designation signal having first directivity to the control target display device; and the control target display device that has received the device designation signal and has changed from the first mode to the second mode. The multi-screen device includes a remote control device including a second transmission unit that transmits a device control signal having a second directivity wider than the first directivity.
Thereby, each display apparatus of a multi-screen apparatus can be controlled separately.

  According to the present invention, one electronic device selected from a plurality of electronic devices can be controlled and operated. In addition, it is possible to specify a controllable user and lock the remote control operation.

(Embodiment 1)
FIG. 1 is a diagram illustrating a schematic configuration of the first embodiment. The first embodiment is a remote control system including a multi-screen device that forms a large screen by arranging a plurality of display devices in a matrix and a remote control device that controls and operates the multi-screen device.
In the embodiment shown in FIG. 1, nine display devices 1a to 1i are arranged in 3 × 3 to form a multi-screen device. In the first embodiment, the number of display devices 1 is two or more, and may be arbitrarily arranged in a vertical row, a horizontal row, or a diagonal row. Further, the intervals between the display devices may be close as shown in FIG. 1, or may be spaced within a range in which the control signal of the remote control device can be received. In short, the device designation signal from the remote control device is arranged so that it cannot be received simultaneously by the receiving unit of the adjacent device, and the device control signal is arranged so that the receiving unit of a plurality of devices can receive it simultaneously.
The first embodiment includes one remote control device 2 for the multi-screen device, and selectively controls and operates any one display device.
The remote control device includes a first transmission means for transmitting a device designation signal having a first directivity to at least one control target display device selected from among a plurality of display devices; Second transmission means for transmitting a second directivity device control signal having a directivity wider than the first directivity to a plurality of display devices including the control target display device changed from the first mode to the second mode; Is provided.

  Here, a red laser light emitting element is typically used as the first transmitting means. Since the red laser is visible light and has a narrow directivity, it is convenient because the user can visually recognize the light arrival surface and can accurately irradiate the desired control target device with the laser light. Instead of the red laser light emitting element, a lens may be provided in front of the visible light LED element, and directivity may be narrowed by the lens. By providing a lens in front of the visible light LED element and adjusting the position of the lens in the optical axis direction, the directivity can be adjusted so as not to include an adjacent display device on the light arrival surface. When light having such narrow directivity is used, it is possible to easily select one desired display device by irradiating the light. The directivity of light may be changed according to the area of the display device (more specifically, the area determined by the interval between adjacent receiving units) and the distance from the remote control device to the display device.

  As the second transmission means, an infrared light emitting element (LED) is typically used. Since invisible light is used for the second transmission means, radio waves may be used instead of infrared rays. Here, the fact that the second directivity has a wider directivity than the first directivity means that the second directivity includes directivity including an adjacent display device on the infrared arrival surface. It is desirable to include all or 2/3 to half of the multi-screen device. With such a wide directivity, when the device is controlled using the second transmission means, the remote control device may be directed to the multi-screen device, and does not need to be directed to the display device to be controlled. Accordingly, the directivity angle varies depending on the area of the multi-screen device and the distance from the remote control device to the multi-screen device.

  FIG. 2 shows an external view of the remote control device 2. As shown in FIG. 2, a key for controlling and operating the device by a remote control device is provided. The keys include a channel switch 11a, a volume adjustment switch 11b, and a voice changeover switch 11c, a menu screen changeover switch 11d, an input changeover switch 11e, and a key 12 that moves up, down, left and right. In addition, a power switch, a mute switch, a BS switch, and the like may be provided.

Furthermore, in Embodiment 1 of the present invention, as shown in FIG. 2B, a red laser light emitting element 13 is used as a first light emitting element that has a narrow directivity for selecting a display device and emits visible light. As a second light emitting element having a wide directivity and emitting invisible light, an infrared light emitting element 14 is provided.
The first light emitting element is constituted by the red laser light emitting element 13, but the remote control device of the present invention irradiates laser light to one display device, more specifically, the laser light receiving element provided in the display device. The laser spot may be too small or too large. In such a case, a lens 15 capable of adjusting the size of the spot may be provided in front of the red laser element so as to be movable in the optical axis direction. Further, a visible light LED element may be used in place of the red laser light emitting element 13. In this case, since the visible light spot may be too large on the arrival surface of the display device, in order to adjust the size of the visible light spot, a lens 15 is provided in front of the visible light LED element, and the lens 15 is disposed on the optical axis. It is good to move in the direction. A knob 16 may be provided to adjust the lens position.

Since the remote control device 2 switches between the red laser light emitting element 13 and the infrared light emitting element 14, the remote control device 2 includes a red laser light emitting element / infrared light emitting element switching key 17. The switch key 17 is preferably a push switch or a toggle switch. When using the infrared light emitting element 14, it can be used as what is called a normal remote control using infrared rays. In this case, a remote control signal is transmitted in common to all the display devices constituting the multi-screen device.
The present invention also includes a special code key 18 for instructing the remote control code to give a special code so that only the selected display device operates. The special code key 18 will be described later with reference to FIG.

  FIG. 3 shows a block diagram of the remote control device. When any key or switch 21 of the remote control device 2 shown in FIG. 2 is operated, the control unit 22 determines which switch is operated, and stores a remote control code signal corresponding to the operated key or switch 21. 23 to read and generate. The control unit 22 includes a special code generation unit 24 that gives a special code to the remote control code signal when the special code key 18 is turned on. The remote control code signal is sent to the visible light emitting element 13 or the infrared light emitting element 14 to control light emission.

FIG. 4 shows a block diagram of one display device forming a multi-screen device, and such a block diagram is provided in each display device.
The display device includes a first receiving unit that receives a device designation signal transmitted from the remote control device, a second receiving unit that receives a device control signal transmitted from the remote control device, and the first receiving unit includes the device designation signal. When the electronic device is received, the mode change unit for changing the electronic device from the first mode to the second mode, and when the electronic device is in the second mode, the electronic device is controlled by the device control signal received by the second receiving unit. A control unit.
Here, the first receiving unit is the visible light receiving element 31, and the second receiving unit is the infrared receiving element 32. The outputs of the visible light receiving element 31 and the infrared light receiving element 32 are input to the control unit 36 via the connector 33, and correspond to the remote control code received by the visible light receiving element 31 or the infrared light receiving element 32 by the control unit built-in scaling LSI 34. The control signal to be read is read from the frame memory 35, and the LCD 39 including the liquid crystal module 37 and the backlight 38 is controlled by the read control signal.

The control unit built-in scaling LSI 34 has a light reception time measurement unit 40. The light reception time measurement unit 40 determines whether the visible light receiving element 31 has received visible light for a predetermined time, for example, 2 seconds or more, and has received light for a predetermined time or more. A mode changing unit 41 for changing from the first mode to the second mode. By this mode change unit 41, the display device changes from the normal mode to the special key code processable mode.
In addition, the control unit built-in scaling LSI 34 displays the reception mode by the OSD (on screen display) on the LCD 39 in order to notify the user that the mode has been changed by receiving light for a predetermined time. Alternatively, a reception display LED (not shown) is provided, and this reception display LED is turned on.
Then, when the control unit built-in scaling LSI 34 receives the remote control code including the special key code from the remote control device in the second mode, which is the special key code processable mode, the information stored in the frame memory 35 and the special key code are stored. A control / operation unit 42 that collates and confirms the key code and controls / operates the electronic device according to the remote control code is provided.
When the control unit built-in scaling LSI 34 is in the special key code processable mode, the light receiving time measuring unit 40 determines whether it has received light for a predetermined time, for example, 2 seconds or more. 41 returns to the original normal remote control reception mode.

Next, as shown in FIG. 1, one display device is selected from the display devices constituting the multi-screen device 1, and the user selects the remote control device 2 for luminance unevenness or color unevenness of the selected display device 1 e. The case of using and adjusting will be described according to the flowchart.
FIG. 5 shows a flowchart for explaining the operation of the remote control device. When the user operates the remote controller 2, the operation of the remote controller 2 starts. First, in step S1, it is determined whether or not there is a laser color setting. If there is a laser color setting, the process proceeds to step S2 to set a laser of a color different from the current color. That is, the setting is changed so that the laser light emitting element 13 having the set color is used. Then, it returns to step S1.
If the laser color is not set in step S1, the process proceeds to step S3, and it is determined whether the switching key 17 between the laser light emitting element and the infrared light emitting element of the remote control device is on the laser light emitting element side or the infrared light emitting element side. When the switching key 17 is on the laser light emitting element side, the process proceeds to step S4, the laser light emitting element that emits the set laser color is operated, and this flow is finished.
Since the laser light emitting element 13 operates in this way, the user irradiates the display device that desires to adjust the luminance unevenness or the color unevenness with the laser light. As a result, the display device to be controlled is selected from the plurality of display devices.

In step S3, when the switching key 17 is on the infrared light emitting element side, the process proceeds to step S5. That is, the process proceeds to the operation of operating the infrared light emitting element 14. In step S5, it is determined whether the special code key 18 and the normal key are pressed. If both keys are pressed, the process is a special process, so that the process proceeds to step S6 to generate a special process code.
The generation of the special processing code includes a remote control code acquisition step S6-1 and a step S6-2 of adding 1 to the lower bits of the remote control code. The remote control code acquisition step of step S6-1 is a process of reading the remote control code corresponding to the key of the remote control device from the memory 23 and acquiring the remote control code. The next step S6-2 is a process of adding 1 to the lower order to the normal remote control code acquired as described above.

FIG. 6 is a diagram for explaining a process of generating a remote control code with a special processing code by adding 1 to the lower bits to a normal remote control code. Here, assuming that the remote control code has 48 bits, the upper 4 bits and the lower 4 bits are shown, and the middle 40 bits are omitted. The upper 4 bits generate the remote control code acquired from the memory 23, for example, corresponding to the keys 1 to 9 and A to F of the remote control device. For such upper 4 bits, 1 is added to the lower 4 bits, and the upper and lower bits are made continuous to generate a remote control code with a special processing code.
On the other hand, when 1 is not added to the lower bits, it is a normal processing code, and a remote control code corresponding to the key or switch operated by the user is read from the memory 23 and generated.
The generation of the special processing code is an example. Depending on the remote control code, 1 may be added to the upper bits to generate the special processing code, and 1 may be added to the middle bit between the upper bit and the lower bit. May be added to generate a special processing code. The numerical value to be added need not be limited to 1 and may be an arbitrary number.

The emission of the infrared light emitting element 14 is controlled according to the special processing code generated as described above, and a remote control code including the special processing code is transmitted in step S7.
When this special processing code is transmitted, a menu screen for controlling the display device is selected by the remote control device, and a key for white balance adjustment or gamma adjustment is operated by the remote control device. In response to this key operation, the remote control code is read out, 1 is added to the lower bits of the remote control code, and the special processing code is transmitted.

  If NO in step S5, the process is a normal process, and the process proceeds to step S8. In step S8, it is determined whether or not the normal key is pressed. That is, it is determined whether or not only the normal key of the remote control device is operated. If there is no key operation, the process returns to step S1. When the key of the remote control device is pressed, in step S9, the remote control code corresponding to the key is read from the memory 23, the remote control code is obtained, and the emission of the infrared light emitting element 15 is controlled according to the remote control code. In S10, a normal processing code is transmitted.

Next, the operation of the display device will be described with reference to the flowchart shown in FIG.
When the multi-screen device is activated (step S11), in step S12, it is determined whether or not the remote control device 2 emits laser light and the visible light receiving element 31 of the display device detects the laser of the specified color. . The laser color may be determined by attaching a specified color filter in front of the visible light receiving element 31. When the laser of the designated color is not detected, the process proceeds to step S13, and it is determined whether or not the infrared light receiving element 32 has detected infrared rays in step S13. If infrared rays are not received, the process returns to step S12, and laser light reception detection and infrared light reception detection are continued. If infrared rays are detected, normal remote control reception processing is executed in step S14. That is, the control signal corresponding to the remote control code included in the received infrared signal is read from the frame memory 35, the display device is controlled by the control signal, and this flow is finished.

When the laser of the designated color is detected in step S12, the process proceeds to step S15, and it is determined whether or not the visible light receiving element 31 has detected the laser of the designated color for a predetermined time or more in step S15. This is to prevent malfunction caused by accidentally irradiated laser, and to detect for a predetermined time to distinguish that the user has consciously designated the display device. In this embodiment, for example, it is 2 seconds or more, but it is not limited to 2 seconds. When the laser is detected for 2 seconds or more, the process proceeds to step S16, and the mode change unit 41 changes the first mode to the second mode. That is, the display device is changed to a special code processable mode. In this way, only the display device that has been irradiated with the laser for a predetermined time or more can enter the special code processable state in the second mode.
In order to notify the user of this state, as shown in FIG. 8, the OSD 44 displays the second mode on the LCD 30 screen. Alternatively, the LED provided in the display device is turned on for display.

As described above, in the state of the second mode, it is determined whether or not the infrared light receiving element 32 has received infrared light (step S17). When the infrared light is received, the process proceeds to step S18, and it is determined whether or not the remote control code included in the infrared signal received in step S18 includes a special code. If no special code is included, the process returns to step S17. If the remote control code includes a special code, the special code processing is executed in step S19.
Since the special code can be processed only by the display device in the second mode in step S16, only the display device designated by the laser is controlled / operated according to the remote control code. The Here, when the remote control code is white balance adjustment or gamma adjustment, the display apparatus is white balance adjusted or gamma adjusted in accordance with the remote control code. Of course, it is possible to perform control and operation by other remote control devices.
Then, it returns to step S17 and waits for the next infrared signal.

  If the infrared light receiving element 32 does not receive infrared light in step S17, it is determined in step S20 whether or not the visible light receiving element 31 has received the designated color laser. If the designated color laser is not received, the process returns to step S17. However, if the designated color laser is received, the process proceeds to step S21, and it is determined whether or not the visible light receiving element 31 has been detected for a predetermined time or more. The reason for detecting over a predetermined time is as described above. If not detected for a predetermined time or longer, the process returns to step S17. If it is detected for a predetermined time or longer, the second mode is canceled in step S22, and this flow is terminated.

In the first embodiment, the case where the luminance unevenness and the color unevenness are adjusted by the remote control device has been described. In addition, the same video signal is supplied to each display device constituting the multi-screen display device. The portion of the supplied video signal that is to be displayed is enlarged or displayed, or each display device enlarges the supplied video signal and selects the portion of the enlarged video signal that is to be displayed by itself. It can also be used for display and control.
That is, when the same video signal is supplied to each display device, a portion to be displayed by each display device is set by the remote control device of the present invention. Alternatively, the supplied video signal is enlarged, and the portion to be displayed among the enlarged video signal is set by the remote control device of the present invention.

  In the above description, the special code is obtained by adding “1” to the lower bits, which is a normal remote control code and a code added so that only the device selected by the present invention operates. As this special code, a user's individual unique code may be used. When the unique code of the individual user is used in this way, it can be set so that a user other than the individual cannot be controlled by the remote control device. Therefore, the person who can operate with the remote control device can be specified, and the remote control operation can be locked.

  The above description is a case where one display device is selected by the remote control device, and the selected one display device is controlled, but among the display devices forming the multi-screen device, a plurality of display devices are controlled simultaneously. In order to do so, first, a plurality of display devices to be controlled by the laser beam of the remote control device are selected, and the second mode is set. Next, a plurality of selected display devices can be controlled simultaneously by transmitting a control signal from the remote control device to the multi-screen device using infrared rays. In this case, the plurality of display devices do not need to be adjacent to each other, and may be in a range where infrared rays can be received.

  Further, contrary to the above control / operation, the present invention can also control / operate a plurality of display devices that are not selected except for the display device selected by the remote control device. In this case, among the display devices forming the multi-screen device, one or a plurality of display devices that are not to be controlled are irradiated with the laser beam of the remote control device, and these are in a special code processing mode that is the second mode. To the state. Next, without pressing the special code key 18 of the remote control device, that is, by sending a control signal to the multi-screen device without adding a special code, a normal remote control code is transmitted, so the second mode is entered. Only one or more display devices that are not, i.e. remain in the first mode, can be controlled simultaneously.

(Embodiment 2)
The second embodiment is a case where two or more laser elements having different wavelengths are used.
In the first embodiment, visible light laser emitting elements having different wavelengths, for example, a red laser and a green laser are provided in a remote control device, and a red light receiving element and a green light receiving element are provided in a display device. Then, the display device that has received the red laser is set to add, for example, 1 to the lower 4 bits as a special code added to the infrared rays. The display device that has received the green laser is set to add, for example, 2 to the lower 4 bits as a special code added to the infrared rays. With this configuration, only the display device specified by the red laser and specified by the red laser is controlled, or only the display device specified by the green laser and specified by the green laser is controlled. Can be divided into groups. For example, the display device can be divided into an odd-numbered display device and an even-numbered display device. Thereby, the utilization range of this invention can be expanded.
If the display device and the video device or DVD device are placed close to each other and the display device and the video device or DVD device cannot be distinguished from each other and laser irradiation is not possible, the display device is designated by a red laser and the video device or DVD device is green. By specifying with the laser, the display device and the video device or the DVD device can be arranged close to each other and controlled separately.

The flowcharts of Embodiment 2 are as shown in FIGS.
FIG. 9 shows a flowchart of the remote control device. The difference from the flowchart of FIG. 5 is that steps S31 and S32 are added. That is, if the first laser color is set in step S1, the process proceeds to step S31. In step S31, it is determined whether or not to change the second laser color. If the laser color is changed, the process proceeds to step S2. move on.
However, if the laser color is not changed, the process proceeds to step S32, and another category control different from the operation of FIG. 5 is performed.
FIG. 10 shows a flowchart of the display device. The difference from the flowchart of FIG. 7 is that steps S41 and S42 are added. That is, in step S12, when the laser of the designated color is not detected, the process proceeds to step S41, and in step S41, it is determined whether a laser of another color is detected. When a laser of another color is detected, the process proceeds to step S42, and another category process is executed in step S42. If no laser of another color is detected, the process proceeds to step S13.
Here, the different categories are odd-numbered display devices and even-numbered display devices as described above. Alternatively, it is a display device, a television receiver and a video or DVD device, or an electric product such as an air conditioner or a lighting fixture.

(Embodiment 3)
The third embodiment is a case where various kinds of display devices such as a television or a personal computer are arranged like an electronic store. Also in this case, the configuration can be the same as in the first embodiment. That is, the remote control device receives a first transmission means for transmitting a device designation signal having a first directivity to at least one control target display device selected from a plurality of display devices, and the device designation signal. A second directional device control signal having a directivity wider than the first directivity is transmitted to the plurality of display devices including the controlled display device changed from the first mode to the second mode. Transmitting means.
With respect to this remote control device, the display device receives a device designation signal transmitted from the remote control device, a second reception unit that receives a device control signal transmitted from the remote control device, and the first A mode changing unit that changes the display device from the first mode to the second mode when the receiving unit receives the device designation signal; and a device that is received by the second receiving unit when the display device is in the second mode. And a control unit that controls the display device according to the control signal.
Such a remote control device and a display device operate as in the flowcharts shown in FIGS. 5 and 7 to select a specific display device from among a large number of display devices, and to control the selected display device as a remote control. Can be operated by the device.

(Embodiment 4)
In the fourth embodiment, for example, a TV, a video as a peripheral video device, an AV device such as a DVD device, an audio device, a personal computer and a printer, an air conditioner, and a lighting device as peripheral devices, a manufacturer, a product type, etc. This is a case where different types of products can be controlled by the remote control device.
As described above, even when the manufacturer and the product are different, only the selected device can be controlled by configuring the remote control device and the device in the same manner as in the first embodiment.
That is, the remote control device receives a first transmission means for transmitting a device designation signal having first directivity to at least one control target electronic device selected from a plurality of electronic device devices, and the device designation signal. Then, a second directivity device control signal having a directivity wider than the first directivity is sent to the plurality of electronic device devices including the control target electronic device device changed from the first mode to the second mode. Second transmitting means for transmitting.
With respect to this remote control device, the electronic device device includes a first reception unit that receives a device designation signal transmitted from the remote control device, a second reception unit that receives a device control signal transmitted from the remote control device, and the first When the first receiving unit receives the device designation signal, the mode changing unit changes the electronic device device from the first mode to the second mode, and when the electronic device device is in the second mode, the second receiving unit receives the signal. And a control unit that controls the display device according to the device control signal.
Such a remote control device and an electronic device device operate as shown in the flowcharts of FIGS. 5 and 7 to select a specific electronic device device from among a large number of electronic device devices and select the selected electronic device device. The device device can be operated by a remote control device.

The figure explaining schematic structure of Embodiment 1 of this invention is shown. The external view of a remote control device is shown. The block diagram of a remote control device is shown. The block diagram of one display apparatus which comprises a multiscreen apparatus is shown. The flowchart figure of a remote control device is shown. The figure explaining the process which produces | generates a special process code is shown. The flowchart figure of a display apparatus is shown. The figure explaining the state which displays OSD on LCD is shown. The flowchart figure of the remote control apparatus of Embodiment 2 is shown. The flowchart figure of the display apparatus of Embodiment 2 is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Remote control apparatus 13 Laser light emitting element 14 Infrared light emitting element 17 Switch key 18 of a red laser light emitting element and an infrared light emitting element 18 Special code key 22 Control part 23 Memory 31 Visible light receiving element 32 Infrared light receiving element 35 Frame memory 36 Control part 39 LCD

Claims (2)

A remote control key including a first remote control key and a second remote control key;
First transmission means having a first directivity and transmitting a device designation signal for selecting at least one control target electronic device from a plurality of electronic devices ;
When the second transmission means for transmitting the first and second device control signals of the second directivity having a directivity wider than the first directivity and the first remote control key are operated, the first A transmission unit that transmits a device control signal, and when the first remote control key and the second remote control key are operated, a transmission unit that transmits a second device control signal;
A remote control device comprising:
A first receiver for receiving a device designation signal transmitted from the remote control device;
A second receiver for receiving a first or second device control signal transmitted from the remote control device;
A mode changing unit that changes the processing mode of the electronic device from the first mode to the second mode when the first receiving unit receives the device designation signal;
When the electronic device is in the first mode, if the second receiving unit receives the first device control signal , the first processing is performed, and the second processing is performed even if the second device control signal is received. When the electronic device is in the second mode without being implemented, and receives the second device control signal , the remote controller includes a control unit that performs control so as to perform the second process. system. The remote control system according to claim 1, wherein the electronic device is a display device, and is a multi-screen device in which the plurality of display devices are arranged in a matrix.