JP2003179985A - Remote control signal transmission method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote control signal transmission method for controlling another connected device by remotely controlling a control target device. <P>SOLUTION: A remote control signal to be received by the control target device is transmitted to the other device connected by wire, thereby controlling the other connected device by remote control operation performed for the control target device side. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal transmission method of a remote controller for controlling a signal output device for outputting video and audio signals or an image receiving device for receiving and reproducing video and audio.

[0002]

2. Description of the Related Art As a conventional method for controlling other connected equipment by a remote control signal, a method for controlling with infrared rays as in JP-A-07-255092 or a network based on 1394 as in JP-A-10-155188 is used. It is a thing.

[0003]

As described above, in the conventional method of controlling another device connected by the remote control signal, in the method of controlling by the infrared ray, the infrared output section or the other device is controlled on the side of the device to be controlled. A storage means for accumulating the remote control code is required. In the control method using 1394, 1
In order to support 394 connection, a circuit other than the remote control is necessary, and there is a problem that the price of the device is increased to control the remote control.

[0004]

In order to solve the problem of the conventional method of controlling another connected device by a remote control signal, in the method of the present invention, an image transmitted from the transmitting device side to the image receiving device is transmitted. By adding a remote control signal line that transmits from the image receiving device side to the transmitting device to the information transmission cable such as audio signal and transmitting the remote control signal from the image receiving device to the transmitting device by wire, the image receiving device and the transmitting device can be connected to each other. Control one connected device via the remote control light receiving part of the other device without adding special parts from the component configuration of a single device that does not consider remote control of the device A method can be provided. However, simply transmitting the remote control signal received by the image receiving device side to the transmitting device side by wire causes the following problems. A general microcomputer that decodes a remote control signal of a conventional device has only one input terminal dedicated to the remote control signal. Therefore, if the remote control signal received by the remote control light receiving unit on the transmitting device side and the remote control signal received by the remote control light receiving unit on the image receiving device side are input to one microcomputer terminal at the same time, the remote control signal will be in an interference state and will be decoded correctly. I can't do it. The carrier frequency of the remote control signal transmitted from the remote control is
Since it differs depending on the manufacturer and device, a remote control signal light receiving unit that can receive and decode remote control signals regardless of the manufacturer or device is required. Even in long-distance transmission, the remote control signal is dull, and it is necessary to devise a signal that cannot be decoded by the microcomputer. The remote control signal line connected to an external device is directly connected to the semiconductor of the microcomputer or LSI inside the device which may be damaged by the surge, and there is a concern that it may easily break down. Issues such as these are possible. Therefore, as a means for solving the above problem, a remote control signal that the microcomputer of the transmitting device obtains from the remote control signal light receiving unit of the transmitting device and a remote control signal transmitted from the image receiving device are used.
By separately recognizing the two remote control signals and controlling the transmitting device, it is possible to use special components from the configuration of a single device that does not consider remote control of other devices by the image receiving device and the transmitting device. It is possible to provide a method of controlling another connected device by a remote control signal without adding. As means for solving the above problem, in order to output an arbitrary remote control signal received by the receiving device to the transmitting device, the remote control signal is received with high impedance, and a signal having the same phase as the input remote control signal is output with low impedance. By providing an output buffer and outputting the remote control signal from the connector on the image receiving device side to the transmitting device with low impedance, it is possible to provide a method of controlling another connected device by the remote control signal.
As a means for solving the above problem, by providing the SW for controlling the on / off of the signal line in which the remote control signal received by the image receiving device is transmitted to the image receiving device connector by the microcomputer control, the cable is not connected to the image receiving device side connector. By detecting the status by the microcomputer and opening the SW when the cable is not connected to the connector on the image receiving device side, it is possible to protect the circuit inside the image receiving device against surges from the outside. A method of controlling another connected device with a remote control signal can be provided.

Further, since the receiving device obtains the transmission signal and the information of the connected device, the setting state of the transmitting device most suitable for the receiving device can be supported from the receiving device side. It is possible to provide a method of controlling another device connected by a remote control signal, which realizes a function of notifying the user of the optimum setting of the transmitting device side on-screen display.

Similarly, since the image receiving device obtains the transmission signal and the information of the connected device, the setting state of the transmitting device most suitable for the image receiving device can be controlled from the image receiving device side, and the image receiving device is used. The control code of the connected device stored in the memory on the device side is read out, and the function to control the transmitting device to the optimum setting state by transmitting the remote control signal from the receiving device side to the transmitting device side is connected. It is possible to provide a method of controlling the device of FIG.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the invention described in claim 1 of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing video and audio are connected, and In the AV device connection state equipped with the connection method having the function of transmitting the remote control signal decoded by the remote control light receiving unit from the image receiving device to the transmitting device, the receiver remote receiving unit detects any remote controller infrared signal and The remote control signal detected by the unit is output from the image receiving device side to the transmitting device side by the cable connecting the image receiving device and the transmitting device,
The transmitting device receives the remote control signal from the receiving device side and decodes it with the microcomputer of the transmitting device, so that even if the remote control transmitter for transmitting device with directivity is operated toward the receiving device, it is connected to the receiving device. It has the effect of being able to control the transmitted transmitter.

According to a second aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing video and audio are connected, and a remote control light receiving section on the image receiving device side is provided. In the AV device connection state provided with a connection method having a function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, an arbitrary remote control infrared signal is detected by the receiver light receiving unit and detected by the receiver light receiving unit. The cable that connects the remote control signal between the image receiving device and the transmitting device is transmitted from the image receiving device side to the transmitting device side, and the remote control signal transmitted from the image receiving device side is equipped with a dedicated terminal for inputting the remote control signal from the image receiving device side. The transmitter microcomputer decodes and controls the operation and status of the transmitter, and also receives the remote control signal transmitted by the transmitter light receiver included in the transmitter itself. The transmitter microcomputer equipped with a terminal for exclusive use of remote control signal input from is decoding and controls the operation and status of the transmitting equipment, and transmits with priority to the remote control signal input to an independent dedicated terminal. By using the microcomputer operation specifications for controlling the receiver, interference will not occur even if the remote control signal from the receiver light receiver and the remote controller signal from the transmitter light receiver are input to the transmitter microcomputer at the same time. It has the effect that it can be controlled.

According to a third aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing video and audio are connected, and a remote control light receiving section on the image receiving device side is provided. In the AV device connection state provided with a connection method having a function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, an arbitrary remote control infrared signal is detected by the receiver light receiving unit and detected by the receiver light receiving unit. The cable connecting the receiver and transmitter is transmitted from the receiver to the transmitter, and the remote control signal selector switch is input to the remote control signal decoding microcomputer terminal. Selected from the remote control signal output from the transmitter light receiving part of the transmitting device itself, and by the mechanical switch or electric signal. By controlling the changeover switch by the controller, even if the remote control signal from the receiver light receiving part and the remote control signal from the transmitter light receiving part exist in the transmitter at the same time, the remote control signal decoding microcomputer terminal is set to the receiver side microcomputer. The signal and the microcomputer signal on the transmitter device side can be shared, and the transmitter device can be correctly controlled without causing interference.

According to a fourth aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected, and a remote control light receiving section on the image receiving device side is provided. In the AV device connection state provided with a connection method having a function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, an arbitrary remote control infrared signal is detected by the receiver light receiving unit and detected by the receiver light receiving unit. The cable connecting the receiver and transmitter is transmitted from the receiver to the transmitter, and the remote control signal selector switch is input to the remote control signal decoding microcomputer terminal. Selected from the remote control signal output from the transmitter light receiver of the transmitter itself, and the remote control signal detection circuit is set on the receiver side. If the remote control signal input from the receiver is detected, and if it is detected that the remote control signal is input, the switch circuit is selected to select the remote control signal input from the image receiving device side for an arbitrary period. The remote control signal detection circuit or the microcomputer outputs a control signal so that even if the remote control signal from the receiver light receiver and the remote control signal from the transmitter light receiver are present in the transmitter at the same time, the remote controller signal decoding microcomputer terminal is Interference is possible because the microcomputer signal on the receiver side and the microcomputer signal on the transmitter side can be shared, and the remote controller signal on the receiver side automatically becomes dominant when the remote controller signal on the receiver side is input to the transmitter. It has an effect that the transmitting device can be controlled correctly without causing the user's setting. Further, if the remote-control signal detection circuit is provided in the transmitter-side remote-control signal line, the transmitter-side remote-control signal can be set to be superior to the receiver-side remote-control signal.

According to a fifth aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected, and a remote control light receiving section on the image receiving device side is provided. In the AV device connection state provided with a connection method having a function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, an arbitrary remote control infrared signal is detected by the receiver light receiving unit and detected by the receiver light receiving unit. The output buffer circuit, which has sufficient drive capability to transmit remote control signals over a long distance, receives it with high impedance,
A signal processed into the same phase as the input remote control signal, an inverted phase, or a signal of arbitrary signal amplitude level is output with low impedance, and the remote control signal output from the output buffer circuit is connected between the image receiving device and the transmitting device. The cable transmits from the image receiving device side to the transmitting device side, the transmitting device receives the remote control signal from the image receiving device side, and the microcomputer of the transmitting device decodes the remote control signal transmitted from the image receiving device side, for example, 5000 mm. Also in the above long-distance cable transmission, the remote control signal on the receiver side can be transmitted to the transmitter side, and at the same time, the difference in the remote control signal level and polarity different between the devices can be corrected.

According to a sixth aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected, and the remote control light receiving section on the image receiving device side is connected. In the AV device connection state equipped with a connection method having a function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, an arbitrary remote control infrared signal is converted into a remote control electric signal by the receiver light receiving unit, and the switch circuit is Controls whether the remote control signal line is connected to or separated from the receiver side connector, detects whether the signal receiving unit is in the state where the signal is being transmitted from the transmitter to the receiver, and detects the signal from the transmitter. A cable is connected between the receiver and the transmitter by controlling the switch circuit and connecting the remote control signal line to the receiver side connector in the receiving state. In addition, when the signal is being transmitted from the transmitter side, the remote control signal on the receiver side is automatically transmitted to the transmitter side, and the transmitter side is not operating or the cable is connected. When the power is off, the receiver side connector and the internal circuit of the receiver are separated to prevent malfunctions when the connections are not made correctly, and the receiver sends a remote control signal when the power is off to receive an image. It has the effect of preventing the breakdown of the receiver and preventing the internal circuit of the receiver from being destroyed by a surge when the cable is not connected.

According to a seventh aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing video and audio are connected, and a remote control light receiving section on the image receiving device side is provided. In the AV device connection state equipped with a connection method having a function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, an arbitrary remote control infrared signal is converted into a remote control electric signal by the receiver light receiving unit, and the switch circuit is Controls whether the remote control signal line is connected or disconnected to the receiver side connector, detects that the cable is connected to the receiver device and the receiver side connector and the cable are connected. A cable is connected between the receiver and the transmitter by controlling the switch circuit and connecting the remote control signal line to the connector on the receiver side. In the case of the state, the receiver side remote control signal is automatically transmitted to the transmitter side, and when the cable is not connected, the receiver side connector and the receiver internal circuit are separated, It has the effect of preventing the internal circuit of the receiver from being destroyed by surges when the cable is not connected.

According to an eighth aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected, and the remote control light receiving section on the image receiving device side is connected. In the AV device connection state equipped with the connection method having the function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, the remote control infrared signal is converted into a remote control electrical signal by the receiver light receiving part, and the signal receiving part Detects the information of the transmitter and the transmission signal and transmits it to the receiver microcomputer. The receiver microcomputer determines the setting state of the receiver and the transmitter most suitable for the receiver, and the OSD signal generator determines the receiver microcomputer. The OSD is displayed on the display to inform the user of the optimum setting information according to the instruction, and the user recognizes the optimum setting of the transmitter and the receiver according to the transmission signal. It has the effect that it is Rukoto.

According to a ninth aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing video and audio are connected, and a remote control light receiving section on the image receiving device side is provided. In the AV device connection state equipped with the connection method having the function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, the remote control infrared signal is converted into a remote control electrical signal by the receiver light receiving part, and the signal receiving part It detects the information of the transmitter and the transmission signal and transmits it to the receiver microcomputer, and the receiver microcomputer sets the receiver settings to the optimum condition by determining the receiver and transmitter settings that are most suitable for the receiver. Also, select the corresponding remote control code based on the connected device information from the receiver side memory that stores the remote control code of the representative connected transmission device of each manufacturer, and then select the remote control signal generator. Generates the remote control signal of the connected transmitter and controls the transmitter side through the cable so that the transmitter settings are optimal for the receiver, and the OSD signal generator follows the judgment instruction from the receiver microcomputer to set the optimum setting information. By displaying the OSD on the display to notify the user of the setting change information and the setting change information, the user can recognize the optimum setting of the transmitter and the receiver according to the transmission signal and automatically set the transmitter and the receiver. It has the effect that it can be changed.

According to a tenth aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected, and a remote control light receiving section on the image receiving device side is provided. In the AV device connection state having a connection method having a function of transmitting the decoded remote control signal from the image receiving device to the transmitting device, the signal receiving unit detects the information of the transmitting device and the transmitting signal, and transmits the information to the receiver microcomputer.
The remote control signal generation unit reads information from the receiver memory in which the control codes of the representative connected transmission equipment of each manufacturer are stored, and generates the remote control signal of the connected transmission equipment.
The SD generation unit displays a pseudo remote control display for controlling the transmitter operation on the display, and the remote control of the receiver turns off.
Even if there is no remote controller for the transmitting device, the pseudo remote controller on the SD is operated to select the device operation, and the receiver microcomputer instructs the remote control signal generation section to generate the remote control signal corresponding to the operation selection. The operation of the transmitting device can be controlled by selecting the OSD of the receiver.

According to an eleventh aspect of the present invention, in the invention of the tenth aspect, the control code information of the receiver memory in which the control code of a representative connected transmitter of each manufacturer is stored is written only. By connecting an external device such as a device, PC or mobile phone to the information writing terminal, a new control code or a special transmitter code is written in the receiver memory, and a transmitter that cannot be controlled is commercialized after the receiver is released. Even if it is done, it has the effect that the transmitter can be controlled from the receiver side. The external device connection information writing terminal is provided as a dedicated terminal on the receiver, a method of using the terminal for transmitting video, audio, and device information described in each claim of the present invention, or an image is received by operating the receiver remote controller. There is a method to rewrite the contents of the machine memory.

According to a twelfth aspect of the present invention, a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected, and a remote control signal of the image receiving device and a transmitter. In the connected state of the AV device equipped with the connection method having the function of sending and receiving the remote control signal solemnly, the receiver light receiving section detects an arbitrary remote control infrared signal, and the buffer receives the remote control signal output from the receiver light receiving section. The buffer has a low impedance and outputs to the external connection device through the cable, so that the remote control signal detected by the receiver light receiver can be transmitted to the external connection device. On the other hand, on the transmitter side, the remote control infrared ray signal is detected by the transmitter light receiver, the buffer receives the remote control signal output from the transmitter light receiver, and the buffer has a low impedance and is passed through a cable to the external device. By outputting, the remote control signal detected by the transmitter light receiving unit can be transmitted to the externally connected device. Further, in the image receiver, the remote control signal output from the receiver light receiving unit and the remote control signal output from the transmitter light receiving unit are input to the OR circuit, and the output from the OR circuit is input to the receiver microcomputer. The receiver microcomputer responds to both the remote control signal output from the receiver light receiving unit and the remote control signal output from the transmitter light receiving unit to control the receiver. On the other hand, in the transmitter, similarly, the remote control signal output from the transmitter light receiver and the remote control signal output from the receiver light receiver are input to the OR circuit, and the output from the OR circuit is input to the transmitter microcomputer. By doing so, the transmitter microcomputer has the effect of being able to control the transmitter in response to both the remote control signal output from the receiver light receiver and the remote control signal output from the transmitter light receiver. . With these configurations, it is possible to transmit / receive mutual remote control signals and control each other's devices with a single cable exclusively used for remote control connected between the image receiving device and the transmitter.

FIG. 1 shows an embodiment of the present invention.
From now on, it will be explained using FIG.

(Embodiment 1) FIG. 1 shows a remote control signal transmission method according to claim 1. In FIG. 1, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. The arbitrary remote control transmitter 2 is operated by being directed toward the image receiving device 1 and has a function of transmitting a remote control infrared signal to the image receiving device. The receiver light receiver 3 has a function of converting a remote control infrared signal transmitted from the remote control transmitter 2 into an electric signal. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal converted into an electric signal by the receiver light receiver 3 and controlling the operation of the receiver. The image receiver connector 5 has a function of connecting to the image receiver 1 a cable for transmitting the remote control electric signal converted by the image receiver 3 to an external device. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. The transmitter connector 7 has a function of taking in the remote control electric signal transmitted from the image receiving device 1 to the transmitting device by connecting the cable. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting a remote control electric signal from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal does not deteriorate during transmission. Have. The transmitter microcomputer 9 has a function of receiving and decoding the remote control electric signal transmitted from the image receiving device 1 and controlling the operation of the transmitting device. Further, in FIG. 1, the cable 8 is shown as a cable dedicated to remote control signal transmission, but a connector dedicated to video / audio information and a connector dedicated to remote control signal transmission are combined into one cable to handle all signal information. There is also a way to send and receive. Further, in a multi-axis transmission cable composed of a plurality of DVI electric wires, there is also a method of securing an electric wire for transmitting a remote control signal in the transmission cable and transmitting the remote control signal simultaneously with other information.

(Second Embodiment) FIG. 2 shows a remote control signal transmission method according to a second aspect of the present invention. In FIG. 2, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. The arbitrary remote control transmitter 2 is operated by being directed toward the image receiving device 1 and has a function of transmitting a remote control infrared signal to the image receiving device. The image receiver light receiving section 3 has a function of converting the remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10 which is an electric signal. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 converted into an electric signal by the receiver light receiver 3 and controlling the operation of the receiver. The image receiving device connector 5 has a function of connecting the cable 8 for transmitting the remote control electric signal converted by the image receiving light receiving unit 3 to an external device to the image receiving device 1. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. Transmitter connector 7
Has a function of taking in the remote control electric signal 10 transmitted from the image receiving device 1 to the transmitting device by connecting the cable 8. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting the remote control signal 10 from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal 10 does not deteriorate during transmission. Have.
On the other hand, the transmitter light receiving unit 11 has a function of converting a remote control infrared signal transmitted to the transmitting device 6 into a remote control signal 12 which is an electric signal. The transmitter microcomputer 9 receives and decodes two remote control signals, that is, the remote control signal 8 transmitted from the image receiving device 1 and the remote control signal 12 transmitted from the transmitter light receiving unit 11 at different terminals, and operates the image receiving device. Has the effect of controlling Transmitter microcomputer 9
When the two remote control signals are simultaneously decoded, the received signal from one terminal is prioritized to prevent the occurrence of malfunction. As a method to prevent malfunction,
There is also a method of giving priority to the remote control signal that can be decoded earlier in time among the two remote control signals.

(Third Embodiment) FIG. 3 shows a remote control signal transmission method according to a third aspect of the present invention. In FIG. 3, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. The arbitrary remote control transmitter 2 is operated by being directed toward the image receiving device 1 and has a function of transmitting a remote control infrared signal to the image receiving device. The image receiver light receiving section 3 has a function of converting the remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10 which is an electric signal. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver 1. The receiver connector 5 has a function of connecting the cable 8 for transmitting the remote control signal 10 to an external device to the receiver device 1. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. The transmitter connector 7 has a function of taking in the remote control signal 10 transmitted from the image receiving device 1 to the transmitting device 6 by connecting the cable 8. The cable 8 is connected to the image receiving device 1 and the transmitting device 6,
It has a function of transmitting the remote control signal 10 from the image receiving device 1 to the transmitting device 6. On the other hand, the transmitter light receiving unit 11 has a function of converting a remote control infrared signal transmitted to the transmitting device 6 into a remote control signal 12 of an electric signal. The remote control signal 10 and the remote control signal 12 are input to the switch circuit 13 and have a function of selecting one as an output. The changeover switch 14 is a mechanical switch provided in the transmission device 6, and can be operated by the user.
It has a function of controlling the switch circuit 13 to select an output signal. The transmitter microcomputer 9 includes the switch circuit 1
It has the function of receiving and decoding the output signal from 3 and controlling the operation of the transmitting device.

(Embodiment 4) FIG. 4 shows a remote control signal transmission method according to a fourth aspect of the present invention. In FIG. 4, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. The arbitrary remote control transmitter 2 is operated by being directed toward the image receiving device 1 and has a function of transmitting a remote control infrared signal to the image receiving device. The image receiver light receiving section 3 has a function of converting the remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10 which is an electric signal. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver 1. The receiver connector 5 includes the image receiver 3
It has a function of connecting a cable for transmitting the remote control electric signal converted in step 1 to an external device to the image receiving device 1. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. The transmitter connector 7 has a function of taking in the remote control signal 10 transmitted from the image receiving device 1 to the transmitting device 5 by connecting a cable. The cable 8 is connected to the image receiving device 1 and the transmitting device 6 and has a function of transmitting a remote control signal 10 from the image receiving device 1 to the transmitting device 6. on the other hand,
The transmitter light receiving unit 11 has a function of converting a remote control infrared signal transmitted to the transmitting device 6 into a remote control signal 12 of an electric signal. The remote control signal 10 and the remote control signal 12 are input to the switch circuit 13 and have a function of selecting one as an output. The remote control signal detection circuit 15 has a function of detecting whether or not the remote control signal 10 is input to the transmitting device 6. As an example of the circuit configuration, the rising edge of the remote control signal 10 is detected,
By configuring the logic such that the output becomes HIGH only for an arbitrary period by the mono-multi, it is possible to realize a remote control signal detection circuit in which the output becomes HIGH when the remote control signal 10 is input. As another example, the remote control signal 10 is input by an integrating circuit that integrates the remote control signal 10 and a comparator that compares the integrated output with an arbitrary potential and turns the output HIGH when the potential is higher than the arbitrary potential. A remote control signal detection circuit whose output becomes HIGH can be realized. The output signal of the switch circuit 13 is selected by the output of the remote control signal detection circuit 14. The transmitter microcomputer 9 has a function of receiving and decoding the output signal from the switch circuit 13 and controlling the operation of the transmitting device. By the operation of the remote control signal detection circuit 15 and the switch circuit 13, the remote control signal 10 is transmitted by the transmitting device 6
When it is input to the remote control signal 10, the remote control signal input to the transmitter microcomputer 9 is automatically selected as the remote control signal 10.

(Embodiment 5) FIG. 5 shows a remote control signal transmission method according to a fifth aspect of the present invention. In FIG. 5, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. The arbitrary remote control transmitter 2 is operated by being directed to the image receiving device 1, and has a function of transmitting a remote control infrared signal to the image receiving device 1. The image receiver light receiving section 3 has a function of converting the remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10 which is an electric signal. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver. The output buffer circuit 16 receives the remote control signal 10 with a high impedance and outputs a signal with the same phase or an inverted phase or a signal with a changed amplitude level with a low impedance to prevent distortion of the remote control signal due to cable transmission and to transmit the signal. This has the effect that the remote control signal can be received in a distinguishable state on the machine side. The receiver connector 5 has a function of connecting a cable for transmitting the remote control signal 10 to the external device 6 to the receiver device 1. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. The transmitter connector 7 has a function of taking in the remote control electric signal transmitted from the image receiving device 1 to the transmitting device by connecting the cable. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting a remote control electric signal from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal does not deteriorate during transmission. Have. The transmitter microcomputer 9 has a function of receiving and decoding the remote control electric signal transmitted from the image receiving device 1 and controlling the operation of the transmitting device. Further, the output buffer circuit 16 switches the phase information of the same phase or the inverted phase or switches the remote control signal amplitude level of 5V or 3.3V by the user setting or the automatic setting by the connection device information sent from the transmitter. By doing so, it has the effect of absorbing the difference in the amplitude level and phase of the remote control signal that differs depending on the device, and preventing external device control failure.

(Sixth Embodiment) FIG. 6 shows a remote control signal transmission method according to a sixth aspect of the present invention. In FIG. 6, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. Any remote control transmitter 2
It is operated by being directed toward the image receiving device 1, and has a function of transmitting a remote control infrared signal to the image receiving device 1. The image receiver light receiving section 3 has a function of converting the remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10 which is an electric signal. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver. The switch circuit 17 uses the remote control signal 1
Controls that 0 line is connected to the receiver connector 5,
It has the function of connecting and disconnecting. The receiver connector 5 has a function of connecting the cable 8 for transmitting the remote control signal 10 to an external device to the receiver device 1.
The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. By connecting the cable 8 to the transmitter connector 7, the image receiving device 1
It has a function of taking in the remote control electric signal 10 transmitted from the device to the transmitting device. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting the remote control signal 10 from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal 10 does not deteriorate during transmission. Have. On the other hand, the transmitter memory 18 has a function of storing information specific to the transmitting device 6 to be transmitted to the image receiving device 1 and other externally connected devices, in addition to the control data of the transmitting device 6. The transmitter 19 sends to the receiving device 1 video signals, audio signals, video information such as signal format and aspect information, audio modulation method and surround information, and the transmitter memory 18.
It has an effect of transmitting information unique to the transmitting device 6 indicating the type of the transmitting device stored in. The receiver 20 has a function of receiving a signal and information transmitted from the transmitter 19. In addition, the receiver 20 transmits the transmission device information and the video / audio reception state information to the receiver microcomputer 4, and the receiver microcomputer 4 transmits the remote control signal 10 based on the transmission device information and the video / audio reception state information. It has an action of controlling the switch circuit 17 by determining whether or not it is possible to output to the device 6. These control operations enable the receiver microcomputer 4 to recognize the transmitter information and determine whether or not the remote controller signal 10 may be transmitted to the transmitter device. Therefore, the transmitter device malfunctions due to the remote controller signal 10. This has the effect that it can be prevented in advance. Further, the receiver microcomputer 4 recognizes the video / audio reception state, and when the cable is not connected or is not in the reception state, the switch circuit 17 is opened so that the microcomputer inside the receiving device or the semiconductor of the LSI can be made. Since the directly connected line can be opened, it has an effect of protecting a circuit or a semiconductor, which is highly likely to be destroyed, against a surge input from a connector or a cable connected to an external device.

(Embodiment 7) FIG. 7 shows a remote control signal transmission method according to a seventh aspect of the present invention. In FIG. 6, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. Any remote control transmitter 2
It is operated by being directed toward the image receiving device 1, and has a function of transmitting a remote control infrared signal to the image receiving device 1. The image receiver light receiving section 3 has a function of converting the remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10 which is an electric signal. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver. The switch circuit 17 uses the remote control signal 1
Controls that 0 line is connected to the receiver connector 5,
It has the function of connecting and disconnecting. The receiver connector 5 has a function of connecting the cable 8 for transmitting the remote control signal 10 to an external device to the receiver device 1.
The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. By connecting the cable 8 to the transmitter connector 7, the image receiving device 1
It has a function of taking in the remote control electric signal 10 transmitted from the device to the transmitting device. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting the remote control signal 10 from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal 10 does not deteriorate during transmission. Have. The cable 21 transmits the video / audio signal, the video / audio information, and the information unique to the transmitter transmitted from the transmitter 6 to the transmitter 6.
Has a function of transmitting from the image receiving apparatus 1 to the image receiving apparatus 1. In the figure, the cable 8 and the cable 21 are shown as different cables, but they can be combined into the same cable.
The receiver connector 5 includes the cable 21 and the cable 8.
Detects that it is connected to the image receiving device 1, outputs a control signal to the switch circuit 17, connects the switch circuit 17 when the cable is connected, and connects the switch circuit 17 when the cable is not connected. It has the effect of opening the switch circuit 17. By these control operations,
By opening the switch circuit 17 when the cable is not connected, the line directly connected to the semiconductor of the microcomputer or LSI inside the receiving device can be opened, so that the connector or cable for connecting to the external device It has an effect of protecting a circuit or a semiconductor, which is highly likely to be destroyed, against a surge input from the. Also, the same effect is obtained when the cable 8 and the cable 21 are combined into one cable.

(Embodiment 8) FIG. 8 shows a remote control signal transmission method according to the eighth aspect. In FIG. 8, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. Any remote control transmitter 2
It is operated by being directed toward the image receiving device 1, and has a function of transmitting a remote control infrared signal to the image receiving device 1. The image receiver light receiving section 3 has a function of converting a remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver. The receiver connector 5 has a function of connecting the cable 8 for transmitting the remote control signal 10 to an external device to the receiver device 1. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. By connecting the cable 8 to the transmitter connector 7, the remote controller electrical signal 10 transmitted from the image receiving device 1 is transmitted.
Has a function of taking in the transmitter. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting the remote control signal 10 from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal 10 does not deteriorate during transmission. Have. On the other hand, the transmitter memory 18 has a function of storing information specific to the transmitting device 6 to be transmitted to the image receiving device 1 or an externally connected device, in addition to the control data of the transmitting device 6. The transmitter 19 is, in addition to the video signal and the audio signal for the receiving device 1, the video information of the signal format and the aspect information, the audio modulation method and the surround information, and the type of the transmitting device stored in the transmitter memory 18. Has the effect of transmitting the unique information of the transmitting device 6 indicating. The receiver 20
It has a function of receiving a signal and information transmitted from the transmitter 19. The receiver memory 22 has a function of storing device information of the receiver. The OSD generation unit 23 has a function of displaying an arbitrary on-screen display on the display 24. The receiver microcomputer 4 selects the optimum setting information of the receiver device 1 and the transmitter device 6 based on the receiver device information in the receiver memory 22 and the transmitter device information and the video / audio reception state information obtained from the receiver 20. OSD generation unit 2
3 has an action of displaying "optimal setting information of the image receiving device 1 and the transmitting device 6" on the display 24.
Since the image receiving device 1 informs the user of “optimal setting information of the image receiving device 1 and the transmitting device 6”, the user can easily perform the optimum setting of each device. Further, the provision of information on these displays can be canceled by the setting of the user.

(Embodiment 9) FIG. 9 shows a remote control signal transmission method according to a ninth aspect. In FIG. 9, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. Any remote control transmitter 2
It is operated by being directed toward the image receiving device 1, and has a function of transmitting a remote control infrared signal to the image receiving device 1. The image receiver light receiving section 3 has a function of converting a remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver. The receiver memory 22 has a function of storing the control remote control code of the connected device. Remote control signal generator 25
Has an action of generating a remote control signal 26 suitable for the connected device based on the connected device information stored in the receiver memory 22. Further, the remote control signal generation unit 25 has an effect that the remote control signal 10 can be output as it is under the control of the receiver microcomputer 4. (However, in the following description, for simplification of description, all the remote control signals output from the remote control signal generator 25 are remote control signal 2
Notated as 6. The receiver connector 5 has a function of connecting the cable 8 for transmitting the remote control signal 26 to the external device to the receiver device 1. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. Transmitter connector 7 is cable 8
By connecting to, the remote control signal 26 transmitted from the image receiving device 1 is taken into the transmitting device. The cable 8 is connected to the image receiving device 1 and the transmitting device 6,
It has a function of transmitting the remote control signal 26 from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal 26 does not deteriorate during transmission. On the other hand, the transmitter memory 18 has a function of storing, in addition to the control data of the transmitting device 6, the unique information of the transmitting device 6 transmitted to the image receiving device 1 and the externally connected device. The transmitter 19 is, in addition to the video signal and the audio signal for the receiving device 1, the video information of the signal format and the aspect information, the audio modulation method and the surround information, and the type of the transmitting device stored in the transmitter memory 18. Has the effect of transmitting the unique information of the transmitting device 6 indicating. The receiver 20 has a function of receiving a signal and information transmitted from the transmitter 19. The receiver memory 22 has a function of storing device information of the receiver. The OSD generation unit 23 displays an arbitrary on-screen display on the display 24.
Has the effect shown above. The receiver microcomputer 4 selects the optimum setting information of the receiver device 1 and the transmitter device 6 based on the receiver device information in the receiver memory 22 and the transmitter device information and the video / audio reception state information obtained from the receiver 20. Then O
It has a function of controlling the SD generation unit 23 and displaying "optimal setting information of the image receiving device 1 and the transmitting device 6" on the display 24. Since the image receiving device 1 informs the user of “optimal setting information of the image receiving device 1 and the transmitting device 6”, the user can easily perform the optimum setting of each device. Further, the provision of information on these displays can be canceled by the setting of the user. Further, the receiver microcomputer 4 uses the “optimal setting information of the receiver 1 and the transmitter 6” and the control remote control code of the connected device stored in the receiver memory 23 so that the transmitter 6 is in the optimum setting state. In addition, the remote control signal generator 25 can be controlled to change the transmitter device 6 to the optimum setting state. Similarly, the receiver microcomputer 4 has an effect that the transmitter device 6 and the receiver device 1 can be automatically changed to the optimum setting state because the receiver device 1 can also be changed to the optimum setting state. .

(Embodiment 10) FIG.
The method for transmitting a remote control signal described in 1. In FIG. 10, the image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. The arbitrary remote control transmitter 2 is operated by being directed to the image receiving device 1, and has a function of transmitting a remote control infrared signal to the image receiving device 1. The image receiver light receiving section 3 has a function of converting a remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 10. The receiver microcomputer 4 has a function of receiving and decoding the remote control signal 10 and controlling the operation of the receiver. The receiver memory 22 has a function of storing the control remote control code of the connected device. The remote control signal generator 25 has a function of generating a remote control signal 26 suitable for the connected device based on the connected device information stored in the receiver memory 22. Further, the remote control signal generation unit 25 has an effect that the remote control signal 10 can be output as it is under the control of the receiver microcomputer 4. The receiver connector 5 has a function of connecting the cable 8 for transmitting the remote control signal 26 to the external device to the receiver device 1. The transmitting device 6 has a function of transmitting a video signal, an audio signal and other information to the image receiving device 1. By connecting the cable 8, the transmitter connector 7 has a function of taking in the remote controller electric signal 26 transmitted from the image receiving device 1 to the transmitting device. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting a remote control signal 26 from the image receiving device 1 to the transmitting device 6, and has an electrical specification such that the remote control signal 26 does not deteriorate during transmission. Have. On the other hand, the transmitter memory 18 has a function of storing, in addition to the control data of the transmitting device 6, the unique information of the transmitting device 6 transmitted to the image receiving device 1 and the externally connected device. The transmitter 19 is, in addition to the video signal and the audio signal for the receiving device 1, the video information of the signal format and the aspect information, the audio modulation method and the surround information, and the type of the transmitting device stored in the transmitter memory 18. Has the effect of transmitting the unique information of the transmitting device 6 indicating. The receiver 20 has a function of receiving a signal and information transmitted from the transmitter 19. The OSD generator 23 can display an arbitrary on-screen display on the display 24 and has a function of generating a virtual remote controller display 27 controlled by the output of the receiver remote controller transmitter 2. The receiver microcomputer 4 sets the control code of the remote controller signal generator 25 based on the transmitter device information obtained from the receiver 20 and the connected device information stored in the receiver memory 22. And the remote control signal 26 is generated in response to the user's operation on the virtual remote control display 27. With these operations, it is possible to realize a virtual remote controller in which the transmitter 6 can be controlled by operating the receiver remote controller transmitter 2 without the transmitter remote controller.

(Embodiment 11) FIG. 11 shows an eleventh embodiment.
The method for transmitting a remote control signal described in 1. In FIG. 11, except for the receiver memory writing terminal 28, the operation is the same as that of the eleventh embodiment. The receiver memory writing terminal 28 is a terminal for writing new information to the accumulated data in the receiver memory 22, and by connecting a writing device 29 and performing a write operation, the accumulated data is written. Have. The writing device 29 is a device such as a writing-only device, a personal computer, or a mobile phone. Further, in FIG. 11, the receiver memory writing terminal 2
8 indicates that it is different from the receiver connector 5,
There are a method of using the receiver connector 5 and a method of rewriting the memory contents by operating the remote controller of the receiver.

(Embodiment 12) FIG. 12 shows a remote control signal transmission method according to a twelfth aspect. In FIG.
The image receiving device 1 has a function of reproducing video and audio signals on a display or a speaker. The arbitrary remote control transmitter 2 is operated by being directed toward the image receiving device 1 and has a function of transmitting a remote control infrared signal to the image receiving device. The image receiving unit 3 receives the remote control infrared signal transmitted from the remote control transmitter 2 as a remote control signal 10 which is an electric signal.
Has the effect of converting to. The receiver OR circuit 30 has a function of outputting an OR signal of the remote controller signal 10 and the remote controller signal 12 input to the receiver 1 through the cable 8. The receiver microcomputer 4 is ORed by the receiver OR circuit.
It has a function of controlling the operation of the image receiving device by receiving and decoding the remote control signal. The receiver buffer 31 has a function of outputting the remote control signal 10 to an external device with low impedance. The receiver connector 5 has a function of connecting a cable for transmitting the output of the receiver buffer 31 to an external device to the receiver device 1. Transmitting device 6
Has an action of transmitting a video signal, an audio signal and other information to the image receiving device 1. The transmitter connector 7 has a function of taking in the remote control electric signal transmitted from the image receiving device 1 to the transmitting device by connecting the cable. In the transmitter 6, the arbitrary remote control transmitter 2 is operated by being directed toward the transmitter 6 and has a function of transmitting a remote control infrared signal to the transmission device 6. The transmitter light receiving unit 11 has a function of converting a remote control infrared signal transmitted from the remote control transmitter 2 into a remote control signal 12 which is an electric signal. The transmitter OR circuit 32 has a function of outputting an OR signal of the remote controller signal 12 and the remote controller signal 10 input to the transmitter 6 through the cable 8. The transmitter microcomputer 9 has the function of receiving and decoding the remote control signal ORed by the transmitter OR circuit, and controlling the operation of the image receiving device. The transmitter buffer 33 has a function of outputting the remote control signal 12 to an external device with low impedance. The cable 8 is connected to the image receiving device 1 and the transmitting device 6, has a function of transmitting and receiving remote control signals to and from the image receiving device 1 and the transmitting device 6, and has an electrical specification such that the remote control signal does not deteriorate during transmission. Have.

[0032]

As described above, according to the present invention, in the remote control signal transmission method, by transmitting the remote control signal from the image receiving device to the transmitting device by wire, the image receiving device and the transmitting device are connected to other connected devices. It is possible to control other connected devices by remote control signals without adding special parts from the configuration state of the device that does not consider remote control by the remote controller.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a remote control signal transmission method according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a remote control signal transmission method according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a remote control signal transmission method according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a remote control signal transmission method according to a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram of a remote control signal transmission method according to a fifth embodiment of the present invention.

FIG. 6 is a configuration diagram of a remote control signal transmission method according to a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram of a remote control signal transmission method according to a seventh embodiment of the present invention.

FIG. 8 is a configuration diagram of a remote control signal transmission method according to an eighth embodiment of the present invention.

FIG. 9 is a configuration diagram of a remote control signal transmission method according to a ninth embodiment of the present invention.

FIG. 10 is a configuration diagram of a remote control signal transmission method according to a tenth embodiment of the present invention.

FIG. 11 is a configuration diagram of a remote control signal transmission method according to an eleventh embodiment of the present invention.

FIG. 12 is a configuration diagram of a remote control signal transmission method according to a twelfth embodiment of the present invention.

[Explanation of symbols]

1 Image receiving equipment 2 Remote control transmitter 3 Receiver receiver 4 Receiver Microcomputer 5 Receiver connector 6 transmitter 7 Transmitter connector 8 cables 9 Transmitter microcomputer 10 Receiver remote control signal 11 Transmitter light receiver 12 Transmitter remote control signal 13 switch circuit 14 Changeover switch 15 Remote control signal detection circuit 16 Output buffer circuit 17 Switch circuit 18 transmitter memory 19 transmitter 20 receiver 21 cable 22 Receiver memory 23 OSD generator 24 display 25 Remote control signal generator 26 Remote control signal 27 Virtual remote control display 28 Receiver memory writing terminal 29 Writing equipment 30 Receiver OR circuit 31 receiver buffer 32 transmitter OR circuit 33 transmitter buffer

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5C056 AA05 AA07 BA01 BA08 CA11                       DA08 EA02                 5K048 BA02 DA02 DB04 DC01 DC03                       EB02 EB14 EB15 HA01 HA02                       HA03

Claims (12)

[Claims] 1. A remote control transmitter for controlling a transmitting device in an AV device connection state in which a signal output device for outputting a video and audio signal and an image receiving device for receiving and reproducing the video and audio are connected to each other and an arbitrary remote control transmitter. Output from the image receiving device and the image receiving device having a remote control light receiving part (hereinafter referred to as the image receiving part) for receiving the remote control signal and a receiver side connector for transmitting the remote control signal decoded by the image receiving device from the image receiving device to the transmitting device. Remote controller signal transmission method comprising a transmitter-side connector for receiving the remote-control signal and a transmitter having a microcomputer for decoding the remote-control signal input from the image-receiving device side. 2. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected, and a remote control signal decoded by a remote control light receiving unit on the image receiving device side is transmitted from the image receiving device. In an AV device connection state equipped with a connection method having a function of transmitting to a device, an image receiver light-receiving unit that receives an arbitrary remote control infrared signal and a receiver device side connector that outputs a remote control signal to a transmitter device and a receiver device side output The remote control signal input from the transmitter side connector that receives the remote control signal and the image receiving device side, and the remote control signal of the transmitting device that is decoded by the remote control light receiving unit (hereinafter referred to as the transmitter light receiving unit) of the transmitting device are different. A remote control signal transmission method equipped with a transmitter-side microcomputer that can input each signal separately at the terminal. 3. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected by wire, and a remote control signal decoded by the image receiving device is transmitted from the image receiving device to the transmitting device. In a connected state of an AV device equipped with a connection method having a function of, a receiver light receiving unit for receiving an arbitrary remote control signal, an image receiving device side connector for outputting a remote control signal to a transmitting device, and a remote control signal output from the image receiving device side are provided. A switch circuit for selecting one of two signals, a remote control signal input from the transmitting device side to be received, a remote control signal input from the image receiving device side, and a remote control signal to the transmitting device to be decoded by the transmitter light receiving section, and the output signal of the switch circuit is decoded. Remote control signal transmission provided with a transmitter-side microcomputer and a mechanical switch or switch circuit control unit for controlling the switch circuit Method. 4. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected by wire, and a remote control signal decoded by the image receiving device is transmitted from the image receiving device to the transmitting device. In a connected state of an AV device equipped with a connection method having a function of, a receiver light receiving unit for receiving an arbitrary remote control signal, an image receiving device side connector for outputting a remote control signal to a transmitting device, and a remote control signal output from the image receiving device side are provided. A switch circuit for selecting one of two signals, a remote control signal input from the transmitting device side to be received, a remote control signal input from the image receiving device side, and a remote control signal to the transmitting device to be decoded by the transmitter light receiving section, and the output signal of the switch circuit is decoded Detects that the transmitter and the remote control signal are input to the transmitter, and that the remote control signal is input. A remote control signal transmission method comprising a remote control signal detection circuit that outputs a control signal to a switch so as to select a remote control signal input from the image receiving device side only for an arbitrary period in the case of the above. 5. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected by wire, and a remote control signal decoded by the image receiving device is transmitted from the image receiving device to the transmitting device. In the connected state of the AV equipment equipped with the connection method having the function to receive, the remote control signal and the receiver of the receiver for receiving an arbitrary remote control signal are received with high impedance, and the signal having the same phase as the input remote control signal or inverted. A remote control signal transmission method comprising an image receiving device including an output buffer for outputting a phase signal or a signal whose signal level is changed with low impedance and an image receiving device side connector for outputting to a transmitting device. 6. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected by wire, and a remote control signal decoded by the image receiving device is transmitted from the image receiving device to the transmitting device. In a connected state of an AV device equipped with a connection method having a function to perform, a receiver unit for receiving an arbitrary remote control signal and a switch unit (hereinafter referred to as SW) for controlling ON / OFF of a signal line in which the remote control signal is transmitted to a receiver unit connector. (Notation) and a receiver that recognizes that a video / audio signal is input to the connector, a microcomputer that controls the SW according to the video / audio signal input information from the receiver, and the receiver device side that outputs a remote control signal to the transmitter device. A remote control signal transmission method including an image receiving device having a connector. 7. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected by wire, and a remote control signal decoded by the image receiving device is transmitted from the image receiving device to the transmitting device. In the connected state of the AV device equipped with the connection method having the function of controlling the ON / OFF of the receiver light receiving unit for receiving an arbitrary remote control signal and the signal line for transmitting the remote control signal to the receiver connector S
A remote control signal transmission method comprising an image receiving device having an image receiving device side connector capable of detecting that a cable is connected to W and the image receiving device and controlling the SW. 8. A signal output device for outputting video and audio signals and a receiving device for receiving and reproducing the video and audio are connected by wire, and a remote control signal decoded by the receiving device is transmitted from the receiving device to the transmitting device. In a connected state of an AV device equipped with a connection method having a function to set, a receiver light receiving unit for receiving an arbitrary remote control signal, a receiver for receiving a transmission signal and information of a connected device, and setting of a transmitter device most suitable for the receiver device. A remote controller including a microcomputer for determining the state and an image receiving device including an on-screen signal generator (hereinafter referred to as an OSD generator) that realizes an on-screen function of notifying the user of an instruction from the image receiver by controlling the microcomputer and an output display. Signal transmission method. 9. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected by wire, and a remote control signal decoded by the image receiving device is transmitted from the image receiving device to the transmitting device. In a connected state of an AV device equipped with a connection method having a function to set, a receiver light receiving unit for receiving an arbitrary remote control signal, a receiver for receiving a transmission signal and information of a connected device, and setting of a transmitter device most suitable for the receiver device. Transmission connected to the memory that stores the control code of the OSD generation unit and each manufacturer's typical connection transmission device that realizes the on-screen function that notifies the user of the instruction from the image reception device side by the microcomputer that determines the state and the microcomputer control A remote control signal transmission method including an image receiving device including a remote control signal generator that generates a device control signal and an output display. 10. A signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing the image and audio are connected by wire, and a remote control signal decoded by the image receiving device is transmitted from the image receiving device to the transmitting device. A remote control that generates a control signal for a connected transmitting device corresponding to the memory and the memory that stores the control code of the representative connected transmitting device of each manufacturer in the connected state of the AV device equipped with the connection method having the function The OSD generation section that displays a pseudo remote control display for performing the signal operation with the signal generation section and the transmitter operation, the remote control of the receiver that controls the pseudo remote control operation on the OSD, and the OSD selection by the remote control can generate the corresponding remote control signal. A remote control signal transmission method including an image receiving device including a receiver microcomputer for instructing a remote control signal generator. 11. The remote control signal transmission method according to claim 10, wherein an information writing terminal for writing the control code information content of the receiver memory that stores the control code of the representative transmitting device of each manufacturer is provided. Remote control signal transmission method equipped. 12. A receiver light-receiving unit for receiving an arbitrary remote control signal in a connected state of AV equipment in which a signal output device for outputting video and audio signals and an image receiving device for receiving and reproducing video and audio are connected. And a remote control signal input from the external device to the buffer circuit that obtains an output to transmit the remote control signal decoded by the light receiving unit from the image receiving device to the external device An image receiving device having an OR circuit for ORing a signal and a remote control signal output from the receiver light receiving part, a transmitter light receiving part for receiving an arbitrary remote control signal, and a remote control signal decoded by the transmitter light receiving part are connected from a transmitter Input from buffer to get output for transmitting to external equipment, transmitter side connector to transmit / receive remote control signal to / from external equipment and external connection equipment And a remote control signal transmission method comprising a transmitter having an OR circuit for ORing the remote control signal output from the transmitter light receiving unit.