JP2011188453A - Electronic apparatus system, electronic apparatus, operating method, program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To selectively operate a plurality of electronic apparatuses, using a single remote controller. <P>SOLUTION: An electronic apparatus system 100 includes a display device 1, and video apparatuses A2 and B3 connected in a state with signals being exchangeable with the display device 1. The display device 1 includes a control unit 11 for transmitting a switching signal indicating which one of the video apparatuses is selected when a signal supply source is selected by a user; each of the video apparatuses A2 and B3 includes a selection state management unit 22 for setting the video apparatus itself either to a selected state or to a non-selected state, respectively, on the basis of the switching signal; and a selection state detecting unit 24 in which, when an instruction signal from the user is received, it is determined whether the apparatus itself is in the selected state; and only when the apparatus itself is set to the selected state, will the processing corresponding to the instruction signal be performed to transmit a signal representing a processing result to the display device 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic device system including a plurality of electronic devices, an electronic device, an operation method, a program, and a recording medium.

  Electronic devices such as display devices are usually used in combination with a plurality of devices such as Blu-ray disk devices and hard disk drive devices. Each of these electronic devices is provided with a remote control device (hereinafter also referred to as a remote controller) for operating each of the electronic devices, and the electronic devices to be operated by using a remote controller corresponding to each electronic device. Can be selected.

  As a system for operating such a plurality of electronic devices, Patent Document 1 discloses a display device, a plurality of video devices connected to the display device, and a remote controller for controlling each of the plurality of video devices. A configured AV system is described. Such an AV system will be described with reference to FIG. As shown in FIG. 8, three set-top boxes (STB) 210 to 212 for controlling video devices are connected to the display device 200 via HDMI cables.

  Display device 200 receives an operation input from remote controller 201 at remote controller reception unit 203, and transmits a remote control identification code assigned to remote controller 201 and operation details to control unit 204. The control unit 204 refers to the information of each video device stored in advance in the memory unit 206, and selects an STB (STB 210 in FIG. 8) operated by the remote controller 201.

  Then, the control unit 204 transmits the operation content to the STB 210 selected via the selector unit 205. The STB 210 transmits the processed data corresponding to the received operation content to the selector unit 205 via the reception I / F 207, and the display device 200 displays the received data on the display unit 202. In this way, in the AV system as shown in FIG. 8, based on the remote control identification code of the remote controller operated by the user, the AV device corresponding to the remote controller is selected and operated, and a plurality of AV devices are combined. It is possible to use.

JP 2004-208290 A (released July 22, 2004)

  However, in the conventional technology as described above, when operating each of the plurality of electronic devices, it is necessary to switch to a remote controller corresponding to each electronic device, which is complicated. Further, when there are a plurality of electronic devices having a common remote control identification code of the corresponding remote controller, it is not possible to accurately select the electronic device to be operated. Even when a universal remote controller that is generally used is used, the electronic device to be operated cannot be selected by the remote control identification code, and the intended electronic device cannot be operated.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic device system, a program, and a recording medium capable of selectively operating a plurality of electronic devices with a single remote controller. There is to do.

  In order to solve the above problems, an electronic device system according to the present invention is an electronic device system including a first electronic device and a plurality of second electronic devices that supply signals to the first electronic device. The first electronic device includes, as a signal supply source, an input signal switching unit that transmits a switching signal indicating which of the plurality of second electronic devices is selected to each of the plurality of second electronic devices. The second electronic device determines whether or not the device is selected as a signal supply source based on the switching signal transmitted from the first electronic device, and the device is selected as the signal supply source In addition, when the device is set to the selected state and the device itself is not selected as the signal supply source, the selection state management unit that is set to the non-selected state and the information processing according to the instruction signal input from the outside are performed. , A signal representing the processing result An information processing unit that supplies the first electronic device, and when the information processing unit receives the instruction signal, the information processing unit determines whether the device is in a selected state set by the selection state managing unit. However, only when it is determined that the selected state is set, information processing according to the received instruction signal is performed.

  In order to solve the above-described problem, an operation method according to the present invention is an electronic device system including a first electronic device and a plurality of second electronic devices that supply signals to the first electronic device. An operation method for operating each of the first electronic device and the plurality of second electronic devices, wherein a switching signal indicating which of the plurality of second electronic devices is selected as a signal supply source A step of transmitting from one electronic device to the plurality of second electronic devices, and whether the second electronic device is selected as a signal supply source by a switching signal transmitted from the first electronic device. Determining, when the own device is selected as a signal supply source, setting to a selected state; and when the own device is not selected as a signal supply source, setting to a non-selected state; Electronics When the instruction signal input from is received, it is determined whether or not the device is in the selected state set in the above step, and is accepted only when it is determined that the selected device is set in the selected state. And a step of processing information according to the instruction signal, and a step of supplying a signal representing a processing result of the information to the first electronic device by the second electronic device.

  According to the above configuration, each of the plurality of second electronic devices that supply signals to the first electronic device receives the instruction signal for information processing from the outside, and the own device uses the selected state management unit. It is determined whether or not the selected state is set, and only when it is determined that the selected state is set, the information is processed according to the received instruction signal, and a signal indicating the processing result is displayed. Supply to the first electronic device.

  In this way, in conjunction with the selection of the signal supply source by the first electronic device, the selected state is set such that the information can be processed according to the instruction signal received by the second electronic device. The device can reliably receive the information processing result from the second electronic device intended by the user who operates the first electronic device.

  Even if there are a plurality of second electronic devices having the same remote control code of the remote controller that transmits the instruction signal, only the second electronic device of the signal supply source selected on the first electronic device side can be operated by the remote controller. Therefore, a plurality of electronic devices can be selectively operated with one remote controller.

  In addition, the first electronic device simply selects one second electronic device from a plurality of second electronic devices that supply signals to its own device as a signal supply source, and simultaneously sends the same instruction signal to all the second electronic devices. Even if received, only the second electronic device selected by the device itself can process information according to the instruction signal and receive a signal representing the processing result.

  In the electronic device system according to the present invention, when the second electronic device determines that the information processing unit determines that its own device is set in a selected state, the second electronic device receives the instruction received by the information processing unit. It further includes an instruction signal conversion unit that determines whether or not the signal can be identified by the own apparatus and converts the instruction signal into an instruction signal that can be identified by the own apparatus when it is determined that the signal is not identifiable. Preferably it is.

  According to said structure, the 2nd electronic device which determined with the own apparatus being set to the selected state determines whether the instruction | indication signal which the information processing part received can be identified in an own apparatus, Only when it is determined that the device itself is not identifiable, the received instruction signal is converted into an instruction signal identifiable by the device itself.

  In this way, even when the second electronic device set to the selected state receives an instruction signal that cannot be identified by the own device, the second electronic device converts the received instruction signal into an instruction signal that can be identified by the own device. Information processing according to the instruction signal can be performed. Therefore, even if there are a plurality of second electronic devices having different remote control codes for transmitting the instruction signal, it is not necessary to change the remote control according to the signal supply source.

  In the electronic device system according to the present invention, the second electronic device stores a conversion table storing a conversion table for converting an instruction signal that is not identifiable by the own device into an instruction signal that is identifiable by the own device. The instruction signal conversion unit refers to the conversion table when the instruction signal conversion unit determines that the instruction signal received by the information processing unit is not identifiable by the own device. It is preferable to convert into an instruction signal that can be identified by the apparatus.

  According to the above configuration, when the instruction signal received by the information processing unit is an instruction signal that cannot be identified by the own device, the instruction signal conversion unit refers to the conversion table stored in the storage unit in advance, thereby The instruction signal can be easily converted into an instruction signal that can be identified by the device itself.

  In the electronic device system according to the present invention, it is preferable that the second electronic device acquires the conversion table from an external device and stores it in the conversion table storage unit.

  According to said structure, the 2nd electronic device can store the conversion table acquired from the external device in the conversion table storage part. Therefore, even a remote control code instruction signal that cannot be converted using a previously stored conversion table can be converted into an instruction signal that can be identified by the device itself by adding a conversion table for converting the instruction signal. it can.

  Further, in the electronic device system according to the present invention, the second electronic device has a selection state management table storing a selection state management table for storing data representing a selected state or a non-selected state set by the selection state management unit. When the information processing unit receives the instruction signal, the information processing unit preferably refers to the selection state management table to determine whether or not the own device is in the selected state.

  According to said structure, an information processing part determines whether an own apparatus is a selected state with reference to the selection state management table stored in the selection state management table storage part.

  In the electronic device system according to the present invention, the first electronic device further includes a first receiving unit that receives a signal input from a first input device for operating the first electronic device, and the second electronic device The device further includes a second receiving unit that receives a signal input from a second input device for operating the second electronic device, and the input signal switching unit includes the first receiving unit or the second receiving unit. When any one of the plurality of second electronic devices receives a selection signal indicating the selection, it is preferable that the switching signal is transmitted to the plurality of second electronic devices.

  According to the above configuration, which of the second electronic devices is selected by the receiving unit of the first receiving unit of the first electronic device and the second receiving unit of the second electronic device as the input signal switching unit. Even if the selection signal indicating that the second electronic device is selected is transmitted to all the second electronic devices connected to the first electronic device based on the selection signal. . Therefore, even if the remote controller that transmits the selection signal is a remote controller for operating any device, the selection signal can be received and the second electronic device can be selected.

  In the electronic device system according to the present invention, the information processing unit may be configured such that either the first receiving unit or the second receiving unit receives the instruction signal and the own apparatus is set to a selected state. When it is determined that there is, it is preferable to perform processing according to the instruction signal.

  According to said structure, the information processing part is the instruction | indication for operating the selected 2nd electronic device in any receiving part of the 1st receiving part of a 1st electronic device, and the 2nd receiving part of a 2nd electronic device. Even if the signal is received, if the apparatus is set to the selected state, the process according to the instruction signal is performed. Therefore, even if the remote controller that transmits the instruction signal is a remote controller for operating any device, the instruction signal is received and the second electronic device can be operated.

  In the electronic device system according to the present invention, the second electronic device is a video device that supplies a video signal to the first electronic device, and the first electronic device is supplied from the second electronic device. A display device that displays a video signal is preferable.

  According to the above configuration, each of the plurality of video devices that supply a signal to the display device receives the instruction signal for information processing from the outside, and the selected device is set by the selection state management unit. Only when it is determined that the selected state is set, the video information and audio information are processed according to the received instruction signal and a signal indicating the processing result is displayed. Supply to the device.

  Thus, in conjunction with the selection of the signal supply source by the display device, the display device is set to a selected state that enables processing of video information and audio information in accordance with the instruction signal received by the video equipment. The information processing result from the video equipment intended by the user who operates the display device can be reliably received. Therefore, even if there are a plurality of video devices having the same remote control code for the remote control that transmits the instruction signal, only the electronic device of the signal supply source selected on the display device side can be operated by the remote control. A plurality of electronic devices can be selectively operated with a remote controller.

  The first electronic device and the second electronic device included in the electronic device system are also included in the scope of the present invention.

  The first electronic device and the second electronic device according to the present invention may be realized by a computer. In this case, a program for realizing the first electronic device or the second electronic device in the computer by causing the computer to operate as each unit and a computer-readable recording medium recording the program are also included in the scope of the present invention. .

  According to the electronic device system according to the present invention, it is determined whether or not a plurality of second electronic devices that supply signals to the first electronic device are in a selected state in which the device is selected as a signal supply source, Only when it is determined that the selected state is set, processing corresponding to the received instruction signal is performed and a signal representing the processing result is supplied to the first electronic device. Can be selectively operated.

It is a figure which shows the whole structure of the electronic device system which concerns on this invention. (A) And (b) is a figure which shows a selection state management table. It is a figure which shows a conversion table. It is a flowchart which shows the flow of the operation processing of a video equipment. It is a figure which shows an example of the remote control used in this invention. It is a flowchart which shows the flow of the selection process of the video equipment using the remote control for display apparatuses. It is a flowchart which shows the flow of the selection process of the video equipment using the remote control for video equipment. It is a figure which shows the whole structure of the conventional AV system.

[Electronic device system 100]
The electronic device system 100 according to the present invention will be described below with reference to FIGS. In the present embodiment, the electronic device system 100 according to the present invention includes a display device (first electronic device) 1, a video device A (second electronic device) 2, and a video device B (second electronic device) 3. However, the present invention is not limited to this as long as it is an electronic device that can be used in combination with a plurality of devices. For example, the present invention can also be applied to a system in which a plurality of AV amplifiers are connected to the display device 1 or a system in which a plurality of AV amplifiers are connected to a video device such as a DVD player. 1 shows a system in which two video devices are connected to the display device 1, the number of video devices connected to the display device 1 is not limited to this. Further, a plurality of electronic devices having different functions may be connected to the display device 1.

  The electronic device system 100 will be described with reference to FIG. FIG. 1 is a diagram showing an overall configuration of an electronic device system 100 according to the present invention. As shown in FIG. 1, the electronic device system 100 includes a display device 1, two video devices A2, and a video device B3. Further, the electronic device system 100 may be configured to include a remote controller (R / C) 4. The display device 1 and the video equipment A2 and the video equipment B3 are connected in a state where signals such as video signals, audio signals, and control signals can be transmitted and received. The display device 1 can be connected to the video device A2 and the video device B3 using, for example, a cable such as an HDMI cable that can transmit and receive a video signal, an audio signal, and a control signal using a single cable.

  As the display device 1, a television broadcast signal receiver (TV receiver) that outputs a received television broadcast signal, various display devices that output video and audio supplied from video equipment, and the like can be used. As the video equipment A2 and the video equipment B3, a DVD player, a Blu-ray disc player, an HDD recorder, or the like can be used.

(Display device 1)
The display device 1 includes a remote control light receiving unit (first receiving unit) 10, a control unit (input signal switching unit) 11, a display unit 12, a SW switching unit 13, and a transmission / reception interface (I / F) 14. The remote control light receiving unit 10 receives a signal by infrared communication, and receives a signal representing the operation input transmitted from the remote control 4 when the user inputs an operation to the remote control 4. 11 to send. At this time, the remote controller 4 functions as a remote controller (first input device) for operating the device itself.

  As the signal transmitted from the remote controller 4, an instruction signal indicating an operation input to the display device 1, the video device A 2 or the video device B 3 by the user, or the video device A 2 or the video device B 3 by the user is selected. And a remote control identification code assigned to identify the remote controller 4 from other remote controllers.

  When the remote control light receiving unit 10 receives the instruction signal, the control unit 11 transmits the instruction signal to each video device via each transmission / reception I / F 14. When the remote control light receiving unit 10 receives the selection signal, the control unit 11 causes the SW switching unit 13 to switch the connection to the selected video device. In addition, the control unit 11 transmits a switching signal indicating which of a plurality of video devices connected to the own apparatus is selected as a signal supply source to all the images connected to the own apparatus via the transmission / reception I / F 14. The data is transmitted to the devices (video device A2 and video device B3 in FIG. 1).

  In the example illustrated in FIG. 1, the control unit 11 causes the SW switching unit 13 to switch the connection to the video device A2, and sends a switching signal indicating that the video device A2 is selected as the signal supply source to the video device A2 and the video device. Send to B3. The control unit 11 performs the same processing when the remote control light receiving unit 20 of the video device A2 or the video device B3 receives the selection signal, and details of the processing will be described later.

  The SW switching unit 13 switches connection to each video device according to an instruction from the control unit 11. The SW switching unit 13 is connected only to the currently selected video device, and is not connected to other video devices. The SW switching unit 13 switches connection to each video device and selectively transmits a video signal and an audio signal from the video device to the display unit 12.

  The transmission / reception I / F 14 is an interface for transmitting and receiving various signals between the display device 1 and the video device A2 or the video device B3. In this embodiment, the transmission / reception I / F 14 is described using HDMI as an example. The display device 1 is provided with three transmission / reception I / Fs 14. Of these, the two transmission / reception I / Fs 14 have a one-to-one correspondence with the video equipment A2 and the video equipment B3 connected to the display device 1, respectively. The remaining one transmission / reception I / F 14 is in an empty state, and can be adapted to other video equipment.

  The display unit 12 is connected to the transmission / reception I / F 14 via the SW switching unit 13, and displays video data represented by the video signal supplied from the video device A2 or the video device B2 on the display (not shown). Display).

(Video equipment A2 and Video equipment B3)
The video equipment A2 and the video equipment B3 are respectively a remote control light receiving unit (second receiving unit) 20, a transmission / reception I / F 21, a selection state management unit 22, a memory (a selection state management table storage unit, a conversion table storage unit) 23, and a selection state. A detection unit (information processing unit) 24, a remote control code processing unit (instruction signal conversion unit) 25, and a video / audio processing unit 26 are provided.

  The remote control light receiving unit 20 receives a signal by infrared communication. When the user inputs an operation to the remote control 4, the remote control light receiving unit 20 receives a signal representing the operation input transmitted from the remote control 4, and transmits / receives I / O. / F21 to the display device 1 or to the selection state management unit 22. At this time, the remote controller 4 functions as a remote controller (second input device) for operating the device itself.

  The transmission / reception I / F 21 corresponds to the transmission / reception I / F 14 of the display device 1 and is an interface for transmitting / receiving various signals to / from the display device 1. In the present embodiment, HDMI is described as an example. The switching signal from the display device 1 is transmitted to the selection state management unit 22 via the transmission / reception I / F 21, and the instruction signal is transmitted to the selection state detection unit 24 via the transmission / reception I / F 21. The selection signal received by the remote control light receiving unit 20 is transmitted to the display device 1 via the transmission / reception I / F 21.

  When the selection state management unit 22 receives a switching signal from the display device 1 via the transmission / reception I / F 21, the selection state management unit 22 determines whether the own device is selected as a signal supply source by the user based on the switching signal. . When the own device is selected as the signal supply source, the own device is set to the selected state, and data indicating that the own device is in the selected state is stored in the selection state management table of the memory 23. . If the own apparatus is not selected as the signal supply source, the own apparatus is set to the non-selected state, and data indicating that the own apparatus is in the non-selected state is stored in the selected state management table of the memory 23. .

  Every time the display device 1 receives a selection signal, the display device 1 transmits a switching signal to all the video devices connected to the display device 1, so the selection state management unit 22 receives the switching signal. Each time it determines whether or not the device is in the selected state, the setting is changed, and the data in the selected state management table in the memory 23 is updated.

  In the memory 23, a selection state management table for storing data indicating a selected state or a non-selected state set by the selection state management unit 22 and an instruction signal that cannot be identified by the own device become an instruction signal that can be identified by the own device. A conversion table for conversion is stored. The memory 23 is not limited to these tables, and can store various tables required when each block in the electronic device system 100 executes a predetermined process.

  The selection state detection unit 24 receives the instruction signal transmitted from the display device 1 via the transmission / reception I / F 21 and the instruction signal received by the remote control light receiving unit 20, and performs the process according to the instruction signal. The instruction signal is transmitted to the video / audio processing unit 26. When the selection state detection unit 24 receives the instruction signal, the selection state detection unit 24 determines whether or not the own device is in the selected state set by the selection state management unit 22. Then, the selection state detection unit 24 sends the instruction signal to the remote control code processing unit 25 so as to perform processing according to the received instruction signal only when it is determined that the own apparatus is set to the selected state. Send.

  On the other hand, if it is determined that the device itself is not set to the selected state (is not selected), the received instruction signal is not transmitted to the remote control code processing unit 25, and the process is terminated. When receiving the instruction signal, the selection state detection unit 24 reads and refers to data representing the current selection state of the own device from the selection state management table stored in the memory 23, and sets the own device to the selected state. It is determined whether or not it has been done.

  When the remote control code processing unit 25 receives an instruction signal from the selection state detection unit 24, the remote control code processing unit 25 determines whether or not the instruction signal can be identified in its own device. When the remote control code processing unit 25 determines that the received instruction signal is identifiable in the own device, the remote control code processing unit 25 transmits the instruction signal to the video / audio processing unit 26. On the other hand, if the remote control code processing unit 25 determines that the received instruction signal is not identifiable on the own device, the remote control code processing unit 25 converts the instruction signal into an instruction signal identifiable on the own device, and then sends the instruction signal to the video / audio processing unit 26. Send.

  When the remote control code processing unit 25 receives an instruction signal, the remote control code processing unit 25 reads, from the conversion table stored in the memory 23, data representing the correspondence relationship between the received instruction signal and the instruction signal that can be identified by the own device and refers to it The received instruction signal is converted into an instruction signal that can be identified by the device itself. The remote control code processing unit 25 transmits the converted instruction signal to the video / audio processing unit 26.

  The video / audio processing unit 26 receives the instruction signal from the remote control code processing unit 25, performs processing according to the instruction signal, and displays the video signal or audio signal according to the instruction content via the transmission / reception I / F 21. To supply.

(Selection status management table)
An example of the selection state management table stored in the memory 23 will be described with reference to FIGS. 2A and 2B are diagrams showing a selection state management table. As shown in FIGS. 2A and 2B, the selection state management table stores the current selection state in association with the identification symbol of the video equipment. 2A and 2B, the selection state “1” represents the currently selected state (selected state), and the selection state “0” represents the currently unselected state. (Non-selected state).

  For example, when the selection state management table is currently in the state of FIG. 2A, that is, the state where the video equipment A is selected, the switching signal from the display device 1 (signal indicating that the video equipment C has been switched). Is sent to the selection state management unit 22 of each video device, each selection state management unit 22 rewrites the selection state management table in each memory 23 as shown in FIG.

  As a result, the selection state management table in the memory 23 of all the video equipments is rewritten from FIG. 2A to FIG. 2B. In this state, when an instruction signal input from an arbitrary remote controller 4 is sent to each video device, the selection state detection unit 24 stores data indicating the current selection state of its own device from the selection state management table in the memory 23. Is read and referred to, and it is determined whether or not the own apparatus is set to the selected state. That is, it is determined whether or not the own device is in the selected state “1”.

(Conversion table)
An example of the conversion table stored in the memory 23 will be described with reference to FIG. FIG. 3 is a diagram showing a conversion table. As shown in FIG. 3, the conversion table has a remote control code string and a conversion code string. The remote control code string stores the remote control code of the instruction signal that cannot be identified by the own apparatus, and the conversion code string corresponds to each remote control code of the remote control code string, and the remote control code of the instruction signal that can be identified by the own apparatus. Are stored in association with each corresponding remote control code.

  In other words, the conversion table shows a correspondence relationship between the remote control code of the instruction signal that cannot be identified by the own device and the remote control code that represents the processing content to be executed by the own device when the remote control code is received. Therefore, if the remote control code processing unit 25 determines that the received instruction signal is not identifiable by the own device, the remote control code processing unit 25 can be identified by the own device corresponding to the remote control code of the received instruction signal from the conversion table in the memory 23. The remote control code data of the instruction signal is read and referred to, and the received instruction signal is converted into an instruction signal that can be identified by the own apparatus.

  The conversion table may be stored in advance in the memory 23 of each video device, but may be added and further updated as the number of video devices connected to the display device 1 increases. . As a method for updating and adding a conversion table, data downloaded to a USB memory (external device) connected to each video device, downloaded from a manufacturer site on a Web server via the Internet, or downloaded from the Internet. Examples include, but are not limited to, a method of reading and reading data written on various discs (BD, DVD, CD, etc.) inserted in each video device.

  The conversion table can be identified by the own device corresponding to the remote control code of the instruction signal from each remote controller 4 for operating the display device 1 and all video devices other than the own device connected to the display device 1. However, the remote control 4 that transmits the instruction signal that can be identified by the own device and the instruction signal that has the same remote control code may not have the data. .

(Operation flow of electronic equipment)
With reference to FIG. 4, the flow of the operation process of the electronic device by the electronic device system 100 in this embodiment is demonstrated. FIG. 4 is a flowchart showing a flow of operation processing of the electronic device. As shown in FIG. 4, the selection state detection unit 24 first determines whether or not an instruction signal has been received in step S <b> 20. This instruction signal may be an instruction signal received by the remote control light receiving unit 10 of the display device 1 and sent to the video device, or received by the remote control light receiving unit 20 of the video equipment and sent to the selection state detection unit 24. It may be an instruction signal.

  When the determination result in step S20 is “true” (Yes), that is, when the instruction signal is received by the selection state detection unit 24, the selection state detection unit 24 reads from the selection state management table stored in the memory 23. Data representing the current selection state of the device is read (step S21). On the other hand, when the determination result in step S20 is “false” (No), that is, when the instruction signal is not received in the selection state detection unit 24, step S20 is repeated.

  Next, in step S22, the selection state detection unit 24 refers to the data read from the memory 23, and determines whether or not the own device is currently set to the selected state. When the determination result in step S22 is “true” (Yes), that is, when the own apparatus is set to the selected state, the selection state detection unit 24 transmits the received instruction signal to the remote control code processing unit 25. To do. On the other hand, if the result of determination in step S22 is “false” (No), that is, if the own apparatus is not set to the selected state, step S20 is repeated.

  The remote control code processing unit 25 determines whether or not the instruction signal received from the selection state detection unit 24 is an instruction signal that can be identified by the own device (step S23). If the result of determination in step S23 is “true” (Yes), that is, if the received instruction signal can be identified by the own device, the remote control code processing unit 25 converts the received instruction signal into the video / audio processing unit 26. Send to.

  If the result of determination in step S23 is “false” (No), that is, if the received instruction signal cannot be identified by the own device, the remote control code processing unit 25 uses the received instruction signal and the received instruction signal from the conversion table in the memory 23. Data representing a correspondence relationship with the instruction signal that can be identified by the own apparatus is acquired (step S25). Next, in step S26, the remote control code processing unit 25 converts the received instruction signal into an instruction signal that can be identified by the own device, based on the data acquired in step S25. Then, the remote control code processing unit 25 transmits the converted instruction signal to the video / audio processing unit 26.

  The video / audio processing unit 26 that has received the instruction signal from the remote control code processing unit 25 performs processing according to the instruction signal and supplies the processing result to the display device 1 in step S24. Then, step S20 is repeated.

  As described above, in the electronic device system 100, the control based on the instruction signal from the user is transmitted only to the video device set to the selected state, and the video device set to the non-selected state receives the selection state detection unit 24 and the subsequent steps. Is not transmitted by the instruction signal. In addition, when the video equipment set to the non-selected state receives an instruction signal from an arbitrary remote controller 4 other than the remote controller 4 for operating the own apparatus, and when the received instruction signal cannot be identified by the own apparatus, Referring to the conversion table stored in the memory 23, the received instruction signal is converted into an instruction signal that can be identified by the own apparatus, and processing corresponding to the converted instruction signal is performed.

(Remote control 40 for display device and remote control 41 for video equipment)
An example of the remote controller 4 used in the electronic device system 100 will be described with reference to FIG. FIG. 5 is a diagram showing an example of the remote controller 4 used in the present invention. As shown in FIG. 5, in the electronic device system 100, a display device remote control 40 for operating the display device 1 and a video device remote control 41 for operating each video device can be used.

  The display remote control 40 includes various input keys for operating the display device 1, and further includes several input keys for operating video equipment such as an external player connected to the display device 1. ing. The input keys for operating the video equipment in the display-use remote controller 40 can be preset so that the video equipment of each manufacturer can be operated. Further, the remote controller 40 for display device is provided with an input switching key, and the selection of the device to be operated can be switched.

  The video equipment remote control 41 includes various input keys for operating the video equipment, and further includes several types of input keys for operating the display device 1 such as a television receiver to which the video equipment is connected. I have. The input keys for operating the display device 1 in the video equipment remote controller 41 can be preset so that the display devices of each manufacturer can be operated. In addition, the video equipment remote control 41 includes an input switching key, and can select a device to be operated.

  The display device remote controller 40 and the video equipment remote controller 41 are remote controllers attached to the respective devices. However, as long as the display device remote controller 40 and the video equipment remote controller 41 are provided with an input key and an input switching key for operating a plurality of devices, Remote control can be used.

(Flow of video equipment selection process)
With reference to FIGS. 6 and 7, the flow of the video device selection process by the electronic device system 100 in the present embodiment will be described. FIG. 6 is a flowchart showing a flow of a video device selection process using the display device remote control 40, and FIG. 7 is a flowchart showing a flow of a video device selection process using the video device remote control 41.

  As shown in FIG. 6, when the user performs a switching operation of a video device as a signal supply source using the display device remote control 40, the control unit 11 first performs an input switching operation by the user's display device remote control 40. The selected selection signal is received by the remote control light receiving unit 10 of the display device 1. When the remote control light receiving unit 10 receives the selection signal, the control unit 11 causes the SW switching unit 13 to switch the connection to the video equipment selected by the input switching operation (step S60).

  Next, the control unit 11 transmits a switching signal indicating which video device has been selected by the input switching operation to each video device (video device A2 and video device B3) via the transmission / reception I / F 14. The selection state management unit 22 of each video device receives the switching signal transmitted from the display device 1 and determines whether or not the own device is selected as the signal supply source based on the received switching signal (step S61). Then, in step S62, when the own device is selected as the signal supply source, the selection state management unit 22 sets the own device to the selected state, and the own device is not selected as the signal supply source. Is set to a non-selected state. The selection state management unit 22 stores the set selection state in the selection state management table in the memory 23, and updates the selection state management table (step S63).

  On the other hand, as shown in FIG. 7, when the user performs a switching operation of the video equipment as a signal supply source using the video equipment remote control 41, the selection signal indicating the input switching operation by the video equipment remote control 41 is the video It is received by the remote control light receiving unit 20 of the video equipment operated by the equipment remote control 41. The remote control light receiving unit 20 that has received the selection signal transmits the selection signal to the display device 1 via the transmission / reception I / F 21.

  In step S70, the control unit 11 that has received the selection signal from the video device via the transmission / reception I / F 14 connects the SW switching unit 13 to the video device selected by the input switching operation based on the selection signal. Let them switch. In addition, the control unit 11 transmits a switching signal indicating which video device has been selected by the input switching operation to each video device via the transmission / reception I / F 14. The selection state management unit 22 of each video device receives the switching signal transmitted from the display device 1, and determines whether or not the own device is selected as the signal supply source based on the received switching signal (step S71). Then, in step S72, the selection state management unit 22 sets the own device to the selected state when the own device is selected as the signal supply source, and the own device is not selected as the signal supply source. Is set to a non-selected state. The selection state management unit 22 stores the set selection state in the selection state management table in the memory 23, and updates the selection state management table (step S73).

  As described above, when each video equipment receives an input switching operation from the remote controller 4 for operating its own device, the display device 1 is instructed regardless of whether or not the own device is in a selected state. A selection signal representing the input switching operation is transmitted. That is, regardless of which of the display device 1 and each video device receives the input switching operation, the control unit 11 of the display device 1 instructs the SW switching unit 13 to switch the connection of the selected video device, and any video A switching signal indicating whether the device has been selected is transmitted to each video device.

[Program and recording medium]
Each block included in the electronic device system 100 may be configured by hardware logic. Alternatively, it may be realized by software using a CPU (Central Processing Unit) as follows.

  That is, the electronic device system 100 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program into an executable format, Also, a storage device (recording medium) such as a memory for storing the program and various data is provided. With this configuration, the object of the present invention can be achieved by a predetermined recording medium.

  The recording medium only needs to record the program code (execution format program, intermediate code program, source program) of the program of the electronic device system 100, which is software that implements the functions described above, so that it can be read by a computer. This recording medium is supplied to the electronic device system 100. Thereby, the electronic device system 100 (or CPU or MPU) as a computer may read and execute the program code recorded on the supplied recording medium.

  The recording medium that supplies the program code to the electronic device system 100 is not limited to a specific structure or type. That is, the recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. System, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM.

  Moreover, even if the electronic device system 100 is configured to be connectable to a communication network, the object of the present invention can be achieved. In this case, the program code is supplied to the electronic device system 100 via a communication network. The communication network is not limited to a specific type or form as long as it can supply the program code to the electronic device system 100. For example, it may be the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, and the like.

  The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, wired communication such as IEEE 1394, USB (Universal Serial Bus), power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), 802.11 It can also be used by radio such as radio, HDR, mobile phone network, satellite line, terrestrial digital network. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention is not limited to the above-described embodiment, and various modifications are possible within the scope shown in the claims, and the present invention is also applied to an embodiment obtained by appropriately combining technical means disclosed in the embodiment. It is included in the technical scope of the invention.

  The present invention can be widely used as an electronic device system that uses a plurality of electronic devices in combination.

1. Display device (first electronic device)
2 Video equipment A (second electronic equipment)
3 Video equipment B (second electronic equipment)
4 Remote control (first input device, second input device)
10 Remote control light receiver (first receiver)
11 Control unit (input signal switching unit)
12 Display unit 13 SW switching unit 14, 21 Transmission / reception I / F
20 Remote control light receiving part (second receiving part)
22 selection state management unit 23 memory (selection state management table storage unit, conversion table storage unit)
24 Selection state detection unit (information processing unit)
25 Remote control code processing unit (instruction signal conversion unit)
26 Video / Audio Processing Unit

Claims (13)

An electronic device system including a first electronic device and a plurality of second electronic devices that supply signals to the first electronic device,
The first electronic device is
An input signal switching unit that transmits a switching signal indicating which of the plurality of second electronic devices is selected as a signal supply source to each of the plurality of second electronic devices;
The second electronic device is
It is determined whether the own device is selected as a signal supply source by the switching signal transmitted from the first electronic device, and when the own device is selected as the signal supply source, the selected state is set, A selection state management unit that sets a non-selection state when the device itself is not selected as a signal supply source;
An information processing unit that processes information according to an instruction signal input from the outside and supplies a signal representing a processing result to the first electronic device;
When the information processing unit receives the instruction signal, the information processing unit determines whether or not the own device is in the selected state set by the selection state management unit, and if it is determined that the selected device is set in the selected state An electronic device system characterized in that only information corresponding to the received instruction signal is processed. The second electronic device is
When the information processing unit determines that the own device is set to the selected state, the information processing unit determines whether or not the instruction signal received by the information processing unit can be identified and can be identified. The electronic device system according to claim 1, further comprising: an instruction signal conversion unit that converts the instruction signal into an instruction signal that can be identified by the apparatus when it is determined that the instruction signal is not. The second electronic device is
A conversion table storage unit that stores a conversion table for converting an instruction signal that is not identifiable in the own device into an instruction signal that is identifiable in the own device;
When the instruction signal conversion unit determines that the instruction signal received by the information processing unit is not identifiable by the own device, the instruction signal conversion unit can identify the instruction signal by referring to the conversion table. The electronic device system according to claim 2, wherein the electronic device system is converted into an instruction signal.   The electronic device system according to claim 3, wherein the second electronic device acquires the conversion table from an external device and stores the conversion table in the conversion table storage unit. The second electronic device is
A selection state management table storage unit that stores a selection state management table that stores data representing a selected state or a non-selected state set by the selection state management unit;
5. The information processing unit according to claim 1, wherein when the instruction signal is received, the information processing unit refers to the selection state management table and determines whether or not the own apparatus is in the selected state. The electronic device system according to any one of the above. The first electronic device further includes a first receiving unit that receives a signal input from a first input device for operating the first electronic device,
The second electronic device further includes a second receiving unit that receives a signal input from a second input device for operating the second electronic device,
The input signal switching unit receives the selection signal when any of the first receiving unit or the second receiving unit receives a selection signal indicating which of a plurality of second electronic devices is selected. The electronic device system according to claim 1, wherein the electronic device system is transmitted to the plurality of second electronic devices.   The information processing unit receives the instruction signal when either the first reception unit or the second reception unit receives the instruction signal and determines that the own apparatus is set to the selected state. The electronic device system according to claim 6, wherein a process corresponding to is performed.   The second electronic device is a video device that supplies a video signal to the first electronic device, and the first electronic device is a display device that displays the video signal supplied from the second electronic device. The electronic device system according to any one of claims 1 to 7, In an electronic device system including a first electronic device and a plurality of second electronic devices that supply signals to the first electronic device, an operation for operating each of the first electronic device and the plurality of second electronic devices. A method,
Transmitting a switching signal indicating which of the plurality of second electronic devices is selected as a signal supply source from the first electronic device to the plurality of second electronic devices;
When the second electronic device determines whether or not its own device is selected as a signal supply source based on a switching signal transmitted from the first electronic device, and when the own device is selected as a signal supply source, Setting to a selected state, and when the device is not selected as a signal source, setting to a non-selected state;
When the second electronic device receives an instruction signal input from the outside, it determines whether or not the device is in the selected state set in the above step, and is set in the selected state Processing the information in accordance with the received instruction signal only when it is determined;
The second electronic device includes a step of supplying a signal representing a processing result of the information to the first electronic device. In an electronic device system including a first electronic device and a plurality of second electronic devices that supply signals to the first electronic device, the electronic device functions as the first electronic device,
An input signal switching unit that transmits a switching signal indicating which of the plurality of second electronic devices is selected to each of the plurality of second electronic devices as a signal supply source is provided. Electronics. In an electronic device system including a first electronic device and a plurality of second electronic devices that supply signals to the first electronic device, the electronic device functions as the second electronic device,
Based on the switching signal transmitted from the first electronic device, it is determined whether or not the device is selected as a signal supply source in the first electronic device, and if the device is selected as the signal supply source, A selection state management unit that is set to a selected state and is set to a non-selected state when the device itself is not selected as a signal supply source;
An information processing unit that processes information according to an instruction signal input from the outside and supplies a signal representing a processing result to the first electronic device;
When the information processing unit receives the instruction signal, the information processing unit determines whether or not the own device is in the selected state set by the selection state management unit, and if it is determined that the selected device is set in the selected state An electronic device that processes information according to the received instruction signal only.   The program for operating the electronic device of Claim 10 or 11, Comprising: The program for functioning a computer as each part with which the said electronic device is provided.   A computer-readable recording medium in which the program according to claim 12 is recorded.

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