JP2014072822A - Electronic apparatus, image display device, and control system of the electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control system of an electronic apparatus capable of efficiently operating a plurality of electronic apparatuses.SOLUTION: An image display system 1 comprises a remote controller 2 for supplying a control signal, and a plurality of projectors 3A-3C. The projector 3A includes: a control information receiving section 3323 for receiving control information from the upstream-side projector 3C; a control information transmitting section 3325 for transmitting the received control information to the downstream-side projector 3B; and a function executing section 3326 for executing a predetermined function in the projector 3A on the basis of the received control information.

Description

  The present invention relates to an electronic device, an image display device, and an electronic device control system.

  Conventionally, various systems using a plurality of electronic devices have been proposed. For example, in Patent Document 1, an image signal output from one video signal source is input to a plurality of image display devices that are electronic devices via a distributor, and images displayed by the image display devices are overlapped. There are known systems that display in a live state.

JP2011-2666A

  However, in the electronic device described in Patent Document 1, when a remote controller (remote control) operation is performed on a target electronic device among a plurality of electronic devices, a remote control operation is performed on a non-target electronic device. It has been difficult to efficiently perform remote control operations for the entire electronic devices or for each electronic device, such as reaction.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 An electronic device according to the application example includes a control information generation unit that generates control information based on a control signal received from the electronic device and a control device that remotely operates the first electronic device, A transmission unit that transmits the control information generated by the control information generation unit to the first electronic device, and a function that executes a predetermined function based on the control information generated by the control information generation unit And an execution unit.

  According to this application example, the electronic device includes a control information generation unit, a transmission unit, and a function execution unit. The control information generation unit generates control information based on a control signal received from the electronic device and a control device that remotely operates the first electronic device. The transmission unit transmits the control information generated by the control information generation unit to the first electronic device. The function execution unit executes a predetermined function based on the control information generated by the control information generation unit. Accordingly, the electronic device transmits the control information generated by the control information generation unit to the first electronic device, and executes a predetermined function based on the control information generated by the control information generation unit. It becomes possible.

  Application Example 2 The electronic device according to the application example further includes a reception unit that receives the control information generated by the second electronic device from the second electronic device, and the transmission unit includes the first electronic device. The control information received from the second electronic device is transmitted to the first electronic device, and the function execution unit executes the predetermined function based on the control information received from the second electronic device. It is characterized by doing.

  According to this application example, the electronic device further includes a receiving unit. The receiving unit receives the control information generated by the second electronic device from the second electronic device. Thus, the electronic device receives the control information generated by the second electronic device, transmits the received control information to the first electronic device, and executes a predetermined function based on the received control information. It becomes possible.

  Application Example 3 The electronic device according to the application example further includes a first connection determination unit that determines whether or not the first electronic device is connected to the electronic device, and the electronic device includes the first connection determination unit. When the first connection determination unit determines that the first electronic device is connected, the transmission unit connects the control information generated by the control information generation unit to the electronic device. If the first connection determination unit determines that the first electronic device is not connected to the electronic device, the transmission unit transmits the control information. It is characterized by not performing.

  According to this application example, the electronic device further includes the first connection determination unit. The first connection determination unit determines whether or not the first electronic device is connected to the electronic device. When the first connection determination unit determines that the first electronic device is connected to the electronic device, the transmission unit transmits the control information to the first electronic device connected to the electronic device. Send to. Accordingly, the electronic device can determine that the first electronic device is connected to the electronic device, and can transmit the generated control information to the first electronic device.

  If the first connection determination unit determines that the first electronic device is not connected to the electronic device, the transmission unit does not transmit control information. Thereby, an electronic device can simplify a process.

  Application Example 4 The electronic device according to the application example further includes a second connection determination unit that determines whether or not the second electronic device is connected to the electronic device, and the electronic device includes the electronic device. When the second connection determination unit determines that the second electronic device is not connected, the transmission unit connects the control information generated by the control information generation unit to the electronic device. When the second connection determination unit determines that the second electronic device is connected to the first electronic device and the second electronic device is connected to the first electronic device, the control information generation unit Without generating, the transmission unit transmits the control information received by the reception unit to the first electronic device connected to the electronic device.

  According to this application example, the electronic device further includes the second connection determination unit. The second connection determination unit determines whether or not the second electronic device is connected to the electronic device. If it is determined that the second electronic device is not connected to the electronic device, the transmission unit transmits the control information generated by the control information generation unit to the first electronic device connected to the electronic device. Send to device. Thereby, the electronic device determines that the electronic device exists in the uppermost stream of the plurality of electronic devices connected in series, and the control information generated by the control information generation unit is connected to the electronic device. It becomes possible to transmit to the first electronic device.

  When it is determined that the second electronic device is connected to the electronic device, the control information generation unit does not generate control information, and the transmission unit receives the first electronic device connected to the received electronic device. The control information generated by the second electronic device is transmitted to the first electronic device connected to the electronic device. As a result, when the second electronic device is connected to the electronic device, the electronic device does not generate control information by the control information generating unit, and thus the electronic device is connected to the case where the second electronic device is connected. Since the processing can be appropriately switched between the case where it is not performed, the control efficiency of each electronic device is improved.

  Application Example 5 The electronic device according to the application example generates the control information by the control information generation unit based on the control information received from the second electronic device connected to the electronic device. It is characterized by controlling whether or not.

  According to this application example, the electronic device controls whether to generate control information based on the control information received from the second electronic device connected to the electronic device. Thereby, since the electronic device controls whether or not to generate control information based on the control information, the processing can be switched appropriately, so that the processing of each electronic device can be differentiated. .

  Application Example 6 In the electronic device according to the application example, the control information received from the second electronic device connected to the electronic device is processed, and the processed control information is connected to the electronic device. It transmits to said 1st electronic device, It is characterized by the above-mentioned.

  According to this application example, the electronic device processes the control information received from the second electronic device connected to the electronic device, and transmits the processed control information to the first electronic device. Accordingly, the electronic device can perform operations different from those of the second electronic device connected to the electronic device or the first electronic device. In addition, when there is an individual difference between electronic devices, the individual difference information is absorbed and the same operation can be performed more reliably.

  Application Example 7 The electronic device described in the application example is characterized in that the electronic device and the first electronic device are connected in a connection format conforming to the USB standard.

  According to this application example, the electronic device and the first electronic device are connected in a connection format compliant with the USB standard. Thereby, the connection between each electronic device can be simplified.

  Application Example 8 An image display device according to this application example is based on a display unit that displays an image, and a control signal received from a control device that remotely operates the image display device and the first image display device. A control information generation unit that generates control information, a transmission unit that transmits the control information generated by the control information generation unit to the first image display device, and the control generated by the control information generation unit And a function execution unit that executes a predetermined function based on the information.

  According to this application example, the image display device includes a control information generation unit, a transmission unit, and a function execution unit. The control information generation unit generates control information based on a control signal received from the image display device and a control device that remotely operates the first image display device. The transmission unit transmits the control information generated by the control information generation unit to the first image display device. The function execution unit executes a predetermined function based on the control information generated by the control information generation unit. Thus, the image display device transmits the control information generated by the control information generation unit to the first image display device, and performs a predetermined function based on the control information generated by the control information generation unit. It becomes possible to execute.

  Application Example 9 An electronic device control system according to this application example includes an electronic device, a first electronic device, the electronic device, and a control device that remotely operates the first electronic device, The electronic device transmits to the first electronic device a control information generation unit that generates control information based on a control signal received from the control device, and the control information generated by the control information generation unit. And a function execution unit that executes a predetermined function based on the control information generated by the control information generation unit.

  According to this application example, the control system for an electronic device includes the electronic device, the first electronic device, the electronic device, and a control device that remotely operates the first electronic device. The electronic device includes a control information generation unit that generates control information based on a control signal received from the control device, a transmission unit that transmits the control information generated by the control information generation unit to the first electronic device, A function execution unit that executes a predetermined function based on the control information generated by the control information generation unit. Thereby, the control system of the electronic device can transmit the control information generated by the electronic device to the first electronic device and execute a predetermined function based on the generated control information. .

  Application Example 10 The electronic device control system according to the application example further includes a second electronic device that generates the control information and transmits the control information to the electronic device, and the electronic device includes the second electronic device. The device further includes a receiving unit that receives the control information generated by the second electronic device from the device, and the transmitting unit transmits the control information received from the second electronic device to the first electronic device. And the function execution unit executes the predetermined function based on the control information received from the second electronic device.

  According to this application example, the control system of the electronic device further includes the second electronic device that is connected to the electronic device, generates control information, and transmits the control information to the electronic device. The receiver further includes a receiving unit that receives the control information generated by the second electronic device, the transmitting unit transmits the control information received from the second electronic device to the first electronic device, and the function executing unit is A predetermined function is executed based on the control information received from the second electronic device. Accordingly, in the control system for the electronic device, the electronic device receives the control information generated by the second electronic device and transmits the received image expression to the first electronic device. Based on the received control information, a predetermined function can be executed.

1 is a schematic diagram illustrating a configuration of an image display system according to a first embodiment. It is a block diagram which shows the internal structure of a projector. It is a flowchart which shows the control processing by a projector.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
In the first embodiment, a control system for an electronic device including an image display device that is an electronic device and a control device that remotely controls the image display device will be described. In the first embodiment, the projector 3 as an image display device and the image display system 1 using a remote controller as a control device will be described as an example of the configuration of a control system for an electronic device.

First, the overall configuration of the image display system 1 will be described.
FIG. 1 is a schematic diagram illustrating a configuration of an image display system 1 according to the first embodiment. As shown in FIG. 1, an image display system 1 according to this embodiment includes a projector 3 (3A to 3C) as an image display device and a remote controller 2 as a control device that remotely operates three projectors 3A to 3C. With. The projectors 3A to 3C are connected to each other by a connection format (USB connection) compliant with the USB standard.
The remote controller 2 that remotely operates the projector 3 transmits a control signal for operating the function of the projector 3 to the projector 3. In the present embodiment, the image display system 1 includes the three projectors 3A to 3C, but the number of connections of the projector 3 can be set as appropriate.

Next, the internal configuration of the projector 3 will be described.
FIG. 2 is a block diagram showing the internal configuration of the projector 3. As shown in FIG. 2, the projector 3A includes a USB module (device) 31 as a reception unit, an input unit 32, a storage unit 33, a control unit 34, a VRAM 35, an image processing unit 36, a display unit 37, and a USB as a transmission unit. A module (host) 38 and an image input unit 39 are provided.
The USB module (device) 31, the input unit 32, the storage unit 33, the control unit 34, the VRAM 35, the image processing unit 36, the display unit 37, the USB module (host) 38, and the image input unit 39 are connected to the bus 40. Connected through. Note that the projectors 3B and 3C have the same configuration as the projector 3A, and a description thereof will be omitted.

  Among these, the USB module (device) 31 includes an interface configured by “USB B terminal” and a module that establishes a communication connection with the projector 3C that is an external electronic device connected via the interface. Has been. Then, the USB module (device) 31 outputs the control information received from the projector 3 </ b> C to the control unit 34.

  The input unit 32 receives an input operation by a user and transmits a control signal corresponding to the input operation to the control unit 34. The input unit 32 includes a light receiving unit for receiving a control signal transmitted from the remote controller 2 for remotely operating the projector 3, an operation button provided on the housing of the projector 3, a keyboard, and the like. ing.

The storage unit 33 includes a RAM 331 used for temporary storage of various data, a rewritable nonvolatile memory 332 such as a flash memory or an FeRAM (Ferroelectric RAM).
The nonvolatile memory 332 stores control information based on various programs and data necessary for the processing of the control unit 34 (these correspond to “firmware”) and control signals received from the PC, keyboard, or remote controller 2. Control for transmitting control information generation program to be generated, generated control information or control information received by USB module (device) 31 to projector 3B which is an external electronic device connected to USB module (host) 38 A function operation program that operates the functions of the projector 3 based on the information transmission program, the generated control information, or the control information received by the USB module (device) 31 is stored.

  The control unit 34 includes a CPU, a random access memory (hereinafter referred to as RAM) used for temporary storage of various data and the like. The control unit 34 operates according to the control program stored in the storage unit 33 to realize various functions and control the operation of the projector 3. The functions executed by the control unit 34 will be described later.

  The VRAM 35 is a work area of the image processing unit 36 and is configured to be capable of storing at least an image for one screen formed by the light modulation device.

  The image processing unit 36 performs various image quality adjustment processes on the image data (image signal) input from the image input unit 39 and outputs a drive signal corresponding to the processed image data to the display unit 37. The image quality adjustment processing executed by the image processing unit 36 includes processing for adjusting brightness, contrast, sharpness, hue, and the like.

  The display unit 37 displays an image. In the present embodiment, the display unit 37 is an image projection unit that forms image light corresponding to the drive signal input from the image processing unit 36 and projects the image light on a projection surface. Although not shown in detail, the display unit 37 includes a light source device, a light modulation device, and a projection optical device. Among these, the light source device includes a light source lamp and a reflecting mirror, or a solid light source such as an LED or a laser, and irradiates the light modulator with a light beam.

  The light modulation device includes a liquid crystal panel that forms image light by modulating a light beam emitted from a light source device, and a driver that drives the liquid crystal panel according to an input drive signal. Note that the light modulation device is not limited to a configuration including a liquid crystal panel, and a configuration other than the liquid crystal panel, such as a device using a micromirror, may be employed. The projection optical apparatus projects the formed image light onto a projection surface, and is configured as a combined lens including a lens barrel and a plurality of lenses housed in the lens barrel.

  The USB module (host) 38 includes an interface configured by “USB A terminal” and a module that establishes a communication connection with the projector 3B (external device) connected via the interface. The USB module (host) 38 transmits the control information output from the control unit 34 to the projector 3B.

  The image input unit 39 converts, for example, a video input terminal such as a DVI (Digital Visual Interface) terminal and a D-Sub (D-Subminiature) terminal, and an image signal input through the video input terminal, and outputs the result. Module.

Here, the control unit 34 will be described. The control unit 34 includes a CPU and controls the entire projector 3A. Further, the control unit 34 reads out the control information generation program, the control information transmission program, and the function operation program stored in the nonvolatile memory 332 of the storage unit 33, and in the image display system 1, the projector 3C (external) A control information transmission process for transmitting the control information received from the device to the projector 3B located on the downstream side is executed.
Therefore, as shown in FIG. 2, the control unit 34 includes a first connection determination unit 3321, a control information generation unit 3322, a control information reception unit 3323, a second connection determination unit 3324, a control information transmission unit 3325, and A function execution unit 3326 is provided. In this embodiment, that an electronic device is “upstream” indicates that the electronic device is an electronic device that transmits control information to another electronic device. Further, in the present embodiment, that an electronic device is “downstream” indicates that the electronic device is an electronic device that receives control information from another electronic device.

  The first connection determination unit 3321 determines whether a connection with the projector 3B is established via the USB module (host) 38.

  The control information generation unit 3322 is input via a light receiving unit for receiving a control signal transmitted from the remote controller 2 to remotely operate the projector 3, an operation button provided on the housing of the projector 3, a keyboard, or the like. The control signal thus converted is converted into control information for operating the functions of the projector 3.

  The control information receiving unit 3323 acquires control information received by the USB module (device) 31. At this time, the projector 3A becomes a slave of the projector 3C as a host.

  The second connection determination unit 3324 determines whether or not a connection with the projector 3 </ b> C is established via the USB module (device) 31.

  When the second connection determination unit 3324 determines that the connection with the projector 3C has been established, the control information received by the control information reception unit 3323 is used in the subsequent processing, and the connection with the projector 3C is established. When it is determined that it has not been established, the control information generated by the control information generation unit 3322 is used in the subsequent processing.

  When the first connection determination unit 3321 determines that the connection with the projector 3B is established, the control information transmission unit 3325 sends the control information to the projector 3B via the USB module (host) 38. Send.

  The function execution unit 3326 executes a predetermined function of the projector 3A based on the control information generated by the control information generation unit 3322 or the control information received by the control information reception unit 3323. Functions that can be executed by the function execution unit 3326 include, for example, a function of adjusting the image quality of an image displayed by the projector 3A, a function of switching an image source, and the like.

  The image processing unit 36 draws an image based on the image signal input from the image input unit 39 on the VRAM 35. The image processing unit 36 performs various image quality adjustment processes on the image drawn on the VRAM 35, and outputs a drive signal corresponding to the processed image data to the display unit 37. Thereby, the display part 37 displays the image according to the input image signal. That is, the display unit 37 projects image light corresponding to the image signal onto the projection surface.

Next, control information transmission processing and function operation processing by the projectors 3A to 3C will be described.
FIG. 3 is a flowchart showing control information transmission processing by the projector 3 (3A to 3C). The projector 3 (3A-3C) starts the control information transmission program after starting the projector 3, and performs a control information transmission process.

Specifically, in the projector 3 (electronic device, image display device), the second connection determination unit 3324 is connected via the USB module (device) 31 to an external device on the upstream side (second electronic device, second device). It is determined whether or not a connection with the image display device has been established (step S101).
If a connection has been established between the projector 3 and the upstream external device (step S101: YES), it is confirmed whether or not a control signal has been received from the remote controller 2 that remotely operates the projector 3 (step S102). ).
If no control signal has been received (step S102: NO), the process returns to step S101. If the control information is received (step S102: YES), the connection with the downstream electronic device (first electronic device, first image display device) is established via the USB module (host) 38. It is determined whether or not (step S105).
If a connection is established between the projector 3 and the downstream electronic device (step S105: YES), the received control information is transmitted to the downstream electronic device (step S106). Based on the received control information, a predetermined function is executed in the projector 3 (step S107), and the control information transmission process is terminated.
If the connection between the projector 3 and the downstream electronic device is not established (step S105: NO), a predetermined function is executed in the projector 3 based on the received control information (step S107). The transmission process ends.

If the connection between the projector 3 and the upstream external device is not established (step S101: NO), it is confirmed whether or not a control signal is received from the remote controller 2 that remotely operates the projector 3 (step S103). ).
If the control signal has not been received (step S103: NO), the process returns to step S101. If a control signal has been received (step S103: YES), control information is generated based on the received control signal (step S104).
Then, it is determined whether or not a connection with a downstream external device is established via the USB module (host) 38 (step S105). If a connection is established between the projector 3 and the downstream external device (step S105: YES), the generated control information is transmitted to the downstream electronic device (step S106). Then, based on the generated control information, the projector 3 executes a predetermined function (step S107), and ends the control information transmission process.
If a connection is not established between the projector 3 and the downstream electronic device (step S105: NO), a predetermined function is executed in the projector 3 based on the received control information (step S107), and control information is transmitted. The process ends.

  Next, specific operations of the projectors 3A to 3C based on this flowchart will be described. In the following description, (A) processing in a system configured by the projectors 3A and 3B and (B) processing in a system configured by the projectors 3A to 3C will be described as examples.

(A) Processing in a system configured with projectors 3A and 3B In this configuration example, it is assumed that the projector 3B is connected to the downstream side of the projector 3A.
In the projector 3A, the second connection determination unit 3324 determines that the connection with the external device on the upstream side is not established via the USB module (device) 31 (step S101: NO). Next, it is confirmed whether or not a control signal is received from the remote controller 2 that remotely operates the projector 3 (step S103). If the control signal has not been received (step S103: NO), the process returns to step S101. If a control signal has been received (step S103: YES), control information is generated based on the received control signal (step S104). If it is determined that the connection with the projector 3B, which is a downstream electronic device, is established via the USB module (host) 38 (step S105: YES), the generated control information is transmitted to the projector 3B ( Step S106). Then, based on the generated control information, a predetermined function is executed in the projector 3A (step S107), and the control information transmission process is terminated.

  On the other hand, the projector 3B determines that the connection with the upstream projector 3A is established via the USB module (device) 31 (step S101: YES). Next, it is confirmed whether or not the control information generated by the projector 3A has been received from the projector 3A (step S102). If control information has not been received (step S102: NO), the process returns to step S101. If control information has been received (step S102: YES), it is determined whether or not a connection with a downstream external device has been established via the USB module (host) 38 (step S105). If it is determined that the connection with the projector 3B is not established (step S105: NO), a predetermined function is executed in the projector 3B based on the received control information (step S107), and the control information transmission process is terminated.

(B) Processing in a system configured by projectors 3A to 3C In this configuration example, it is assumed that the projector 3B is connected to the downstream side of the projector 3A, and the projector 3C is connected to the upstream side of the projector 3A.
In the projector 3A, the second connection determination unit 3324 determines that the connection with the projector 3C, which is an external device on the upstream side, has been established via the USB module (device) 31 (step S101: YES). Next, it is confirmed whether or not a control signal is received from the projector 3C (step S102). If no control signal has been received (step S102: NO), the process returns to step S101. When the control signal is received (step S102: YES) and it is determined that the connection with the projector 3B as the downstream electronic device is established via the USB module (host) 38 (step S105: YES), the projector The control information received from 3C is transmitted to the projector 3B (step S106). Then, based on the control information received from the projector 3C, a predetermined function is executed in the projector 3A (step S107), and the control information transmission process ends.

  On the other hand, the projector 3B determines that the connection with the upstream projector 3A is established via the USB module (device) 31 (step S101: YES). Next, it is confirmed whether or not control information has been received from the projector 3A (step S102). If control information has not been received (step S102: NO), the process returns to step S101. When the control information is received (step S102: YES) and it is determined that the connection with the downstream external device is not established via the USB module (host) 38 (step S105: NO), the received control information Based on this, a predetermined function is executed in the projector 3B (step S107), and the control information transmission process is terminated.

  In the projector 3C, it is determined that the connection with the upstream external device is not established via the USB module (device) 31 (step S101: NO). Next, it is confirmed whether a control signal is received from the remote controller 2 that remotely operates the projector 3 (step S103). If the control signal has not been received (step S103: NO), the process returns to step S101. If a control signal has been received (step S103: YES), control information is generated based on the received control signal (step S104). And it determines with the connection with the projector 3A which is a downstream electronic device established via the USB module (host) 38 (step S105: YES), and transmits the produced | generated control information to the projector 3A (step S105). Step S106). Based on the generated control information, a predetermined function is executed in the projector 3C (step S107), and the control information transmission process is terminated.

According to the first embodiment described above, the following effects can be obtained.
(1) In the image display system 1, the projectors 3A to 3C are cascaded in series. After the control signal transmitted from the remote controller 2 is received by the projector 3C, control information is generated from the control signal, and the generated control information is transmitted to the projector 3B via the projector 3A. Finally, the projectors 3A to 3C execute a predetermined function based on the control information.
Thereby, since the functions of the projectors 3A to 3C can be operated almost simultaneously by giving a single operation instruction from the remote controller 2, the remote controller 2 can be used even when a plurality of projectors 3 are used. The efficiency of the function operation from is improved. For example, when projecting multiple projectors, etc., when manipulating the functions (predetermined functions) of the projector, such as focus adjustment, zoom adjustment, enlargement / reduction adjustment, color correction adjustment, power control, etc., reduce work man-hours Can do.

  (2) In the image display system 1, the projectors 3A to 3C are cascaded in series. After receiving the control signal transmitted from the remote controller 2, the projector 3C generates control information from the control signal, and the generated control information is transmitted to the projector 3B via the projector 3A. According to this, when control information is transmitted to one projector 3C, the control information is transmitted to each projector 3A, 3B. Therefore, the burden on the projector 3C can be reduced as compared with the case where the projector 3C transmits control information to each of the projectors 3A and 3B individually. In addition, since there is no need to use a hub or the like, facilities for control information transmission processing can be simplified.

  (3) In the image display system 1, the projectors 3 </ b> A to 3 </ b> C are connected in series, and the projector 3 </ b> C generates control information from the control signal after receiving the control signal transmitted from the remote controller 2. The control information is transmitted to the projector 3B via the projector 3A. According to this, the projectors 3A and 3B execute a predetermined function based on the control information transmitted from the projector 3C. Thereby, even in the projector 3 and the like at the installation position where the control signal of the remote controller 2 is difficult to reach, each projector 3 can reliably perform the function operation of the projector 3 based on the control information. Even when 3 is used, the efficiency of the function operation from the remote controller 2 is improved. For example, since the failure of various adjustment operations for a plurality of projectors can be reduced, the number of work steps can be reduced.

  (4) The projectors 3 </ b> A to 3 </ b> C in the image display system 1 include the second connection determination unit 3324 in the control unit 34. The second connection determination unit 3324 determines whether a projector is connected to the upstream side of the projector. If no projector is connected to the upstream side, control information is generated based on the control signal received from the remote controller 2, and the generated control information is transmitted to the projector connected to the downstream side. When the projector is connected to the upstream side, the control signal received from the upstream projector is transmitted to the projector connected to the downstream side. Thereby, an optimal process can be performed according to the connection status of the upstream projector.

  (5) The projectors 3 </ b> A to 3 </ b> C in the image display system 1 include a first connection determination unit 3321 in the control unit 34. The first connection determination unit 3321 determines whether a projector is connected to the downstream side of the projector. If no projector is connected to the downstream side, the control information transmission unit 3325 does not transmit control information. Thereby, when the projector is not connected to the downstream side, the control method is not transmitted, so that the processing is reduced.

  (6) Since the projectors 3A to 3C are connected to each other by USB connection, the projector 3A transmits the control information received from the projector 3C located on the upstream side to the projector 3B located on the downstream side. Therefore, it is not necessary to change the data format and configuration of the control information. Therefore, the burden on the projector 3A constituting the image display system 1 can be reduced.

  (7) When the projectors 3A to 3C are operated by the remote controller 2, the entire projector 3A to 3C or the projectors 3A to 3C can be reliably operated. Since there is no erroneous operation, the user operability is improved.

  In addition, it is not limited to embodiment mentioned above, It is possible to implement by adding various change, improvement, etc. A modification will be described below.

(Modification 1)
In the above-described embodiment, the configuration using the projector 3 (3A to 3C) as the image display device has been described as an example. However, the image display device in the present invention is not limited to the projector. For example, as an image display device, a liquid crystal monitor or liquid crystal television for displaying an image / video on a liquid crystal display panel, a monitor device or a television receiver for displaying an image / video on a PDP (plasma display panel), OLED (Organic light- Various display devices such as a monitor device for displaying an image / video on an organic EL display panel called an emitting diode (OEL), an organic electro-luminance (OEL), or a self-luminous display device such as a television receiver are also included in the present invention. It is included in an image display device. In this case, the liquid crystal display panel, the plasma display panel, and the organic EL display panel correspond to a display unit that displays an image.

(Modification 2)
In the above-described embodiment, the connection format of the projectors 3A to 3C is USB connection, but the present invention is not limited to this. That is, other formats may be used as long as the received control information can be transmitted to the downstream apparatus without largely changing.

(Modification 3)
In the above-described embodiment, the remote controller 2 is described as a control device that transmits control signals to the projectors 3A to 3C. However, a control device other than the remote controller 2 may be used. For example, a PC that is connected to the projector 3 on the most upstream side of the plurality of projectors 3 and transmits a control signal to the projector 3 on the most upstream side may be used as the control device.

(Modification 4)
In the above-described embodiment, the control information generation unit generates the control information based on the control information received from the upstream projector, but the present invention is not limited to this. That is, based on the received control information, the control information generation unit may determine whether to generate control information. In this way, unnecessary processing can be avoided by the projector, so that appropriate processing can be executed for each projector.

(Modification 5)
In the above-described embodiment, the projectors 3A to 3C operate the functions of the projector based on the same control information, but the present invention is not limited to this. The projectors 3 </ b> A to 3 </ b> C may further process the control information generated based on the control signal received from the remote controller 2 or the control information received from the upstream projector and transmit the control information to the downstream projector. Further, the function operation of the projector may use either control information before or after processing. By so doing, it is possible to absorb the difference in the model or individual performance of each projector and realize a functional operation at the same level. Also, different function operations can be performed for each projector.

(Modification 6)
In the above-described embodiment, the configuration example using the image display device as the electronic apparatus has been illustrated and described, but the present invention is not limited to this. The present invention can also be applied to a system using electronic equipment other than the image display apparatus. For example, when the present invention is applied to a system including a plurality of audio devices, various sound effects can be realized by operating the plurality of audio devices in conjunction with each other. In addition, if the present invention is applied to a system including a plurality of electronic playground equipment (for example, electronic dolls, etc.), a variety of effects can be achieved by operating the plurality of electronic playground equipments in conjunction with various attractions. Can be realized.

(Modification 7)
In the embodiment described above, focus adjustment, zoom adjustment, enlargement / reduction adjustment, color correction adjustment, power supply control, and the like have been described as examples of predetermined functions executed by the projectors 3A to 3C. The predetermined function to be performed is not limited to these. For example, by using a signal for controlling the display timing of an image as a control signal, it is possible to control the projectors 3A to 3C to display an image in synchronization.

  DESCRIPTION OF SYMBOLS 1 ... Image display system, 2 ... Remote controller, 3, 3A, 3B, 3C ... Projector, 31 ... USB module (device), 32 ... Input part, 33 ... Memory | storage part, 34 ... Control part, 35 ... VRAM, 36 ... Image processing unit 37... Display unit 38 38 USB module (host) 39 Image input unit 331 RAM 332 Non-volatile memory 3321 First connection determination unit 3322 Control information generation unit 3323 ... control information receiving unit, 3324 ... second connection determining unit, 3325 ... control information transmitting unit, 3326 ... function executing unit, 40 ... bus.

Claims (10)

Electronic equipment,
A control information generating unit that generates control information based on a control signal received from the electronic device and a control device that remotely operates the first electronic device;
A transmission unit that transmits the control information generated by the control information generation unit to the first electronic device;
A function execution unit that executes a predetermined function based on the control information generated by the control information generation unit;
An electronic device comprising: The electronic device according to claim 1,
A receiving unit for receiving control information generated by the second electronic device;
The transmission unit transmits the control information received from the second electronic device to the first electronic device;
The function execution unit executes the predetermined function based on the control information received from the second electronic device. The electronic device according to claim 1 or 2,
A first connection determination unit that determines whether or not the first electronic device is connected to the electronic device;
When the first connection determination unit determines that the first electronic device is connected to the electronic device, the transmission unit receives the control information generated by the control information generation unit, Transmitting to the first electronic device connected to the electronic device;
The electronic device, wherein the transmission unit does not transmit the control information when the first connection determination unit determines that the first electronic device is not connected to the electronic device. The electronic device according to claim 2 or 3,
A second connection determination unit that determines whether or not the second electronic device is connected to the electronic device;
When the second connection determination unit determines that the second electronic device is not connected to the electronic device, the transmission unit receives the control information generated by the control information generation unit, Transmitting to the first electronic device connected to the electronic device;
When the second connection determination unit determines that the second electronic device is connected to the electronic device, the control information generation unit does not generate control information, and the transmission unit An electronic apparatus characterized by transmitting the control information received by a receiving unit to the first electronic apparatus connected to the electronic apparatus. The electronic device according to any one of claims 2 to 4,
An electronic device that controls whether or not the control information generation unit generates the control information based on the control information received from the second electronic device connected to the electronic device. The electronic device according to any one of claims 2 to 5,
An electronic device that processes the control information received from the second electronic device connected to the electronic device and transmits the processed control information to the first electronic device connected to the electronic device. machine. The electronic device according to any one of claims 1 to 6,
The electronic device is characterized in that the electronic device and the first electronic device are connected in a connection format compliant with the USB standard. An image display device,
A display for displaying an image;
A control information generating unit that generates control information based on a control signal received from the image display device and a control device that remotely operates the first image display device;
A transmission unit that transmits the control information generated by the control information generation unit to the first image display device;
A function execution unit that executes a predetermined function based on the control information generated by the control information generation unit;
An image display device comprising: An electronic device control system,
Electronic equipment,
A first electronic device;
A control device for remotely operating the electronic device and the first electronic device;
The electronic device is
A control information generating unit that generates control information based on a control signal received from the control device;
A transmission unit that transmits the control information generated by the control information generation unit to the first electronic device;
A function execution unit that executes a predetermined function based on the control information generated by the control information generation unit;
A control system for an electronic device comprising: In the control system of the electronic device according to claim 9,
A second electronic device that generates and transmits the control information to the electronic device;
The electronic device is
A receiver that receives the control information generated by the second electronic device from the second electronic device;
The transmission unit transmits the control information received from the second electronic device to the first electronic device;
The function execution unit executes the predetermined function based on the control information received from the second electronic device.

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