JP2002315074A - Video radio transmitter-receiver system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video radio transmitter-receiver system, which has an improved operability for operating a plurality of video regenerators through an UV remote control transmitter. SOLUTION: A video receiver 30 comprises a first memory circuit 41, having stored video input terminals selected, based on selected data signals; a second memory circuit 42 having stored video regenerators 11, 12, 13 connected respectively to the video input terminals; a third memory circuit 43, having stored second function data signals of the video regenerators 11, 12, 13; and a data converter means 40, which upon the input of first function data signals, reads the selected video regenerator from the first and second memory circuits 41, 42 and reads and outputs the second function data signal corresponding to a function, based on the first function data signal of the video regenerator from the third memory circuit 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video radio transmitting / receiving system comprising a video transmitter for transmitting a video signal by radio and a video receiver for receiving the video signal transmitted by radio. .

[0002]

2. Description of the Related Art FIG. 7 is a block circuit diagram showing a schematic configuration of a conventional video radio communication system. The conventional video wireless communication system 50 shown in FIG. 7 has the following circuit configuration. The video wireless communication system 50 includes the video transmitter 6
0 and the video receiver 70.

[0005] The video transmitter 60 comprises video reproducing devices 61, 62 and 63, a video input switching circuit 64, a video transmission circuit 65, an antenna 66, a remote control receiving circuit 67 and a light emitting circuit 68. Video playback device 6
1, 62 and 63 are connected to an input of a video transmission circuit section 65 via a video input switching circuit section 64, and an output of the video transmission circuit section 65 is connected to an antenna 66. The antenna 66 is connected to an input of a remote control receiving circuit section 67, and an output of the remote control receiving circuit section 67 is connected to a light emitting circuit section 68.

The video receiver 70 includes an antenna 71, a video receiving circuit section 72, an audio circuit section 73, a display circuit section 74,
It comprises an infrared remote control transmitter 75, a light receiving circuit section 76 and a remote control transmission circuit section 77. The antenna 71 is connected to the input of the video receiving circuit 72, and the output of the video receiving circuit 72 is connected to the audio circuit 73 and the display circuit 74,
The light receiving circuit section 76 is connected to an input of a remote control transmission circuit section 77, and an output of the remote control transmission circuit section 77 is connected to an antenna 71.

Next, the operation of the conventional video radio communication system 50 shown in FIG. 7 will be described. In the video transmitter 60, one of the video playback devices 61, 62 and 63 is selected by switching the video input switching circuit unit 64. In FIG. 7, for example, the video playback device 62 is selected. The video signal output from the video signal generator 62 is converted into a high-frequency video signal by the video transmission circuit section 65 and transmitted from the antenna 66 to the video receiver 70.

The high-frequency remote control signal received from the antenna 66 is converted into the original remote control signal by the remote control receiving circuit 67. This remote control signal is converted from an electric signal into an infrared signal IR by the light emitting circuit section 68, and the infrared signal IR is converted into the video reproduction devices 61 and 6.
The signals are input to remote control light-receiving units (not shown) of the second and the second 63, respectively.

[0007] In the video receiver 70, the high frequency video signal transmitted from the video transmitter 60 is received by the antenna 71. The received high-frequency video signal is converted into a video signal and an audio signal by a video receiving circuit section 72, the video signal is displayed as an image by a display circuit section 74, and the audio signal is converted into audio by an audio circuit section 73.

The infrared signal IR from the infrared remote control transmitter 75 is converted into an electric remote control signal by the light receiving circuit section 76, and the remote control signal is converted into a high frequency remote control signal by the remote control transmission circuit section 77. The signal is transmitted from the antenna 71 to the video transmitter 60.

As described above, the infrared remote control transmitter 75
The infrared signal IR is transmitted from the light receiving circuit section 76 → the remote control transmitting circuit section 77 → the antenna 71 → the antenna 66 → the remote control receiving circuit section 67 → the light emitting circuit section 68 → the video reproducing device 6
The video playback devices 61, 62, and 63 transmitted through the remote control light receiving units (not shown) of each of the remote controllers 1, 62, and 63 can be controlled by the infrared remote control transmitter 75.

[0010]

However, in the above-mentioned prior art, since the video transmitter 60 and the video receiver 70 are installed at remote places, there are the following problems.

That is, for example, the video reproducing device 61,
In the case where the manufacturers of 62 and 63 are different, in order to operate the video playback devices 61, 62 and 63, an infrared remote control transmitter dedicated to each video playback device is required, and every time the video playback device to be operated changes, This is very inconvenient because the user has to operate the infrared remote control transmitter while replacing it.

By switching the video input switching circuit section 64 of the video transmitter 60, the video playback device 6
When selecting one of 1, 62 and 63, the user has to remember the video playback device connected to the three inputs of the video input switching circuit section 64. Was.

In addition, when the user changes the connection of the video playback device connected to the three inputs of the video input switching circuit section 64, the user has to remember the changed connection each time. was there.

The present invention has been made to solve the above-mentioned problems, and is intended for a case where a plurality of video reproducing devices 61, 62, 63 of a video transmitter 60 are respectively operated by the infrared remote control transmitter. It is an object of the present invention to provide a video wireless transmission / reception system in which the operability of the system is improved and the inconvenience associated with the above operation is eliminated.

[0015]

In order to solve the above-mentioned problems, the present invention provides a plurality of different video reproducing devices, a video input switching circuit for selecting one of the plurality of video reproducing devices, A video transmission circuit for converting a video signal from the selected video playback device into a high-frequency video signal and transmitting the signal; a remote control reception circuit for converting the received high-frequency remote control signal to the original remote control signal; A video transmitter having a light emitting circuit for converting an electric signal into an infrared signal; a video receiving circuit for receiving the high frequency video signal and converting the video signal and the audio signal; and a display for displaying the video signal as an image Circuit part,
An audio circuit unit for converting the audio signal into audio; an infrared remote control transmitter; a light receiving circuit unit for converting an infrared signal from the infrared remote control transmitter into a remote control signal that is an electric signal; In a video wireless transmission and reception system comprising a video receiver having a remote control transmission circuit unit that converts and transmits to the infrared remote control transmitter of the video wireless transmission and reception system,
A video input selection key for generating a selection data signal for selecting one of the video playback devices, and a common function for generating a first function data signal for commonly operating the plurality of different video playback devices And the video receiver receives the first data based on the selected data signal.
And a data conversion means for converting the function data signal into a second function data signal for operating the selected video reproducing apparatus.

Further, according to the present invention, the video input switching circuit section has a plurality of video input terminals for connecting the plurality of video reproducing devices, and the video receiver selects based on the selection data signal. A first memory circuit unit storing a video input terminal connected thereto, a second memory circuit unit storing a video playback device connected to each of the plurality of video input terminals, and the plurality of video playback devices A third memory circuit section in which each of the second function data signals is stored, wherein the data conversion means comprises:
When the first function data signal is input, a selected video playback device is read from the first and second memory circuit units, and a function based on the first function data signal of the video playback device is performed. And reading out and outputting the second function data signal corresponding to the above from the third memory circuit section.

Further, according to the present invention, the video receiver inputs a video input terminal selected based on the selection data signal to the first memory circuit unit and connects the video input terminal to each of the plurality of video input terminals. Video input setting means for inputting the video reproduction device to the second memory circuit section.

The present invention also provides a plurality of different video playback devices, a video input switching circuit for selecting one of the plurality of video playback devices, and a video signal from the selected video playback device. A video transmission circuit for converting a high-frequency video signal and transmitting the signal; a remote control receiving circuit for converting the received high-frequency remote control signal to the original remote control signal; and a light emitting circuit for converting the remote control signal from an electric signal to an infrared signal. And a video receiver circuit for receiving the high-frequency video signal and converting it to a video signal and an audio signal; a display circuit unit for displaying the video signal as an image; and converting the audio signal to audio. Circuit, an infrared remote control transmitter, and a light receiving circuit for converting an infrared signal from the infrared remote control transmitter into a remote control signal that is an electric signal And a video receiver having a remote control transmission circuit for converting the remote control signal into a high-frequency remote control signal and transmitting the converted signal. A video input selection key for generating a selection data signal for selecting one of the devices, and a common function key for generating a first function data signal for commonly operating the plurality of different video playback devices. The video transmitter includes a data conversion unit that converts the first function data signal into a second function data signal for operating the selected video playback device based on the selection data signal. It is characterized by the following.

Further, according to the present invention, the video input switching circuit section has a plurality of video input terminals for connecting the plurality of video reproducing devices, and the video transmitter selects a video input terminal based on the selection data signal. A first memory circuit unit storing a video input terminal connected thereto, a second memory circuit unit storing a video playback device connected to each of the plurality of video input terminals, and the plurality of video playback devices A third memory circuit section in which each of the second function data signals is stored, wherein the data conversion means comprises:
When the first function data signal is input, a selected video playback device is read from the first and second memory circuit units, and a function based on the first function data signal of the video playback device is performed. And reading out and outputting the second function data signal corresponding to the above from the third memory circuit section.

Further, according to the present invention, the video transmitter inputs a video input terminal selected based on the selection data signal to the first memory circuit unit and connects the video input terminal to each of the plurality of video input terminals. Video input setting means for inputting the video reproduction device to the second memory circuit section.

Further, the present invention is characterized in that the video input setting means rewrites the second memory circuit section with a device discriminating means for discriminating a video reproducing apparatus from a remote control signal of an infrared remote control transmitter of the video reproducing apparatus. Memory rewriting setting means for setting a state in which the second memory circuit unit can be rewritten by the memory rewriting setting means. A video input terminal is selected by the video input selection key, and the video reproducing device determined by the device determining means is input to the video input terminal.

Further, in the present invention, the memory rewriting setting means includes a timer for measuring a specified time, and the memory rewriting setting means keeps pressing a video input selection key of the infrared remote control transmitter of the video wireless transmission / reception system for the specified time. The second memory circuit section is set in a rewritable state, and the video input terminal can be selected and the memory rewrite setting can be performed by pressing and holding the video input selection key for the specified time. Is what you do.

Further, in the present invention, the display circuit section and the audio circuit section of the video receiver are televisions, and the infrared remote control transmitter of the video wireless transmission / reception system is an infrared remote control transmitter for operating the television. It is characterized by being.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIG. 1 is a block circuit diagram showing a schematic configuration of a video radio transmission / reception system according to a first embodiment of the present invention.
FIG. 3 is an external view of an infrared remote control transmitter of the video wireless transmission / reception system according to the first embodiment of the present invention, and FIG. 3 is a first view of the video wireless transmission / reception system according to the first embodiment of the present invention. FIG. 4 is a diagram for explaining the state of memory contents of the second, third, and third memory circuit units. FIG. 4 illustrates the operation of the data conversion unit of the video wireless transmission / reception system according to the first embodiment of the present invention. FIG. 5 is a flowchart illustrating the operation of the video input setting means of the video wireless transmission / reception system according to the first embodiment of the present invention. Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a block circuit diagram showing a schematic configuration of a video wireless transmission / reception system 1 of the present embodiment. The video wireless transmission / reception system 1 of the present embodiment in FIG. 1 has the following circuit configuration. The video wireless transmission / reception system 1
It comprises a video transmitter 10 and a video receiver 30.

The video transmitter 10 is a video playback device 1
1, 12, 13; video input switching circuit 14, video transmission circuit 15, antenna 16, remote control reception circuit 17
And a light emitting circuit section 18. Then, the video input switching circuit section 14 has video input terminals 14a, 14b, 14c.
have.

The video reproducing devices 11, 12, 13 are provided with video input terminals 14a, 14
b, 14c, the output of the video input switching circuit 14 is connected to the input of the video transmission circuit 15, and the output of the video transmission circuit 15 is connected to the antenna 16. The antenna 16 is connected to an input of a remote control receiving circuit 17, and an output of the remote control receiving circuit 17 is connected to a light emitting circuit 18.

The video receiver 30 includes an antenna 31, a video receiving circuit section 32, an audio circuit section 33, a display circuit section 34,
Infrared remote control transmitter 35, light receiving circuit section 36, remote control transmission circuit section 37, data conversion means 40, first memory circuit section 41, second memory circuit section 42, third memory circuit section 43, and video input setting means 44.

The antenna 31 is connected to the input of the video receiving circuit 32, and the output of the video receiving circuit 32 is connected to the audio circuit 33 and the display circuit 34. The light receiving circuit unit 36 is connected to the inputs of the data conversion unit 40 and the video input setting unit 44, the output of the data conversion unit 40 is connected to the input of the remote control transmission circuit unit 37, and the output of the remote control transmission circuit unit 37 is connected to the antenna 31. It is connected to the.

A first memory circuit section 41, a second memory circuit section 42 and a third memory circuit section 43 are connected to the data conversion means 40, and the first memory circuit section 41 and the second memory circuit section 43 are connected to the data conversion means 40. The video input setting means 44 is provided in the memory circuit section 42.
Is connected.

Next, the operation of the video radio transmission / reception system 1 of the present embodiment shown in FIG. 1 will be described. Video transmitter 1
At 0, one of the video reproducing apparatuses 11, 12, and 13 is selected by switching the video input switching circuit section 14. In FIG. 1, for example, the video playback device 12 is selected. The video signal output from the video signal generator 12 is converted into a high-frequency video signal by the video transmission circuit unit 15 and transmitted from the antenna 16 to the video receiver 30.

The high frequency remote control signal received from the antenna 16 is converted into the original remote control signal by the remote control receiving circuit 17. This remote control signal is converted from an electric signal to an infrared signal IR by the light emitting circuit section 18, and the infrared signal IR is converted into the video reproducing devices 11 and 1.
The signals are input to remote control light receiving units (not shown) of the second and the 13th, respectively.

In the video receiver 30, the high-frequency video signal transmitted from the video transmitter 10 is received by the antenna 31. The received high-frequency video signal is converted into a video signal and an audio signal by a video receiving circuit unit 32, the video signal is displayed as an image by a display circuit unit 34, and the audio signal is converted into audio by an audio circuit unit 33. Here, the display circuit unit 34 and the audio circuit unit 33 may be a television 38.

The infrared remote controller transmitter 35 includes a “selection data signal” for selecting one of the plurality of video playback devices 11, 12 and 13, and a plurality of video playback devices 11, 12 and 13.
13 is generated as an infrared signal IR.

The infrared signal IR from the infrared remote control transmitter 35 is converted by the light receiving circuit section 36 into a remote control signal which is an electric signal, that is, a “selection data signal” and a “first function data signal”. It is input to the conversion means 40.

The data conversion means 40 converts the "first function data signal" into a "second function data signal" for operating the selected video reproducing apparatus based on the "selection data signal". I do. This “second function data signal” is converted into a high-frequency remote control signal by the remote control transmission circuit section 37 and transmitted to the video transmitter 10 from the antenna 31.

A video input terminal selected based on the "selection data signal" is stored in the first memory circuit section 41, and a plurality of video input terminals are stored in the second memory circuit section 42. The video playback devices 11, 12, and 13 connected to the terminals 14a, 14b, and 14c, respectively, are stored in a memory. 2
Is stored in the memory.

The video input setting means 44 inputs the video input terminal selected on the basis of the "selection data signal" to the first memory circuit section 41, and sets a plurality of video input terminals 14a, 14b, 14c. The video playback devices 11, 12, and 13 connected to each are input to the second memory circuit unit 42.

As described above, the infrared remote control transmitter 35
The infrared signal IR is transmitted from the light receiving circuit unit 36 → the data conversion unit 40 → the remote control transmitting circuit unit 37 → the antenna 31 → the antenna 16 → the remote control receiving circuit unit 17 → the light emitting circuit unit 18.
→ The data is transmitted through the path of the remote control light receiving section (not shown) of each of the video reproducing apparatuses 11, 12, and
0, which converts a "first function data signal" for commonly operating a plurality of video playback devices 11, 12, and 13 into a "second function data signal" for operating the selected video playback device. By doing so, a single infrared remote controller transmitter 35 can be used to control a plurality of video playback devices 11, 12, and 13 installed at remote locations.

FIG. 2 is an external view of the infrared remote control transmitter 35 of the video wireless transmission / reception system 1 of the present embodiment.
The infrared remote control transmitter 35 is connected to the video playback devices 11 and 1
2 and 13, a video input selection key 35a for generating a "selection data signal" and a "first function data signal" for commonly operating a plurality of different video playback devices 11, 12, and 13. , And a television function key 35b for operating the television 38 when the display circuit unit 34 and the audio circuit unit 33 are the television 38. I have.

FIG. 3 is a diagram for explaining the state of the memory contents of the first memory circuit section 41, the second memory circuit section 42, and the third memory circuit section 43 of the video wireless transmission / reception system 1 of the present embodiment. is there.

FIG. 3A is a diagram for explaining the state of the memory contents of the first memory circuit section 41. In the first memory circuit section 41, a video input terminal N (N = 1, 2, 3) selected based on the “selection data signal” is stored.

FIG. 3B is a diagram for explaining the state of the memory contents of the second memory circuit section 42. The second memory circuit section 42 has a video playback device 11 (A company V) connected to each of the video input terminals 14a (video input 1), 14b (video input 2), and 14c (video input 3).
TR), 12 (Company B VTR) and 13 (Company C VTR) are stored.

FIG. 3C is a diagram for explaining the state of the memory contents of the third memory circuit section 43. The third memory circuit section 43 includes a plurality of video playback devices 11 (A company VT).
R), 12 (VCR of Company B), and 13 (VTR of C Company) each store the “second function data signal”. The functions include, for example, playback, stop, fast forward, rewind, and recording.

The "second function data signal" is
At least a discrimination code and a data code are included.
The discrimination code is stored in the video playback device 11 (Company A VT).
R) to determine the video playback device 12 (Company B VTR) and video playback device 13 (Company C VTR), for example,
Different codes are set for each of the companies A, B and C. In FIG. 3C, for example, the video playback device 1
1 (Company A VTR) = “01”, video playback device 12 (B
VTR) = “10” and video playback device 13 (Company C V
TR) = “11”.

The data code is, for example, a code set for each function such as reproduction, stop, fast forward, rewind, and recording. In FIG. 3C, for example, the video playback device 11 (Company A VTR) = “a ** 1 to a ** 5”, and the video playback device 12 (Company B VTR) = “b ** 1 to b **”
5 "and the video playback device 13 (VTR of Company C) =" c **
1 to c ** 5 ".

FIG. 4 is a flowchart for explaining the operation of the data conversion means 40 of the video wireless transmission / reception system 1 of the present embodiment. The data conversion means 40 is composed of, for example, a microcomputer. The operation of the data conversion means 40 when the data conversion means 40 is constituted by a microcomputer will be described below with reference to FIG.

In step S1, it is checked whether or not a remote control signal has been input from the light receiving circuit section 36. When a remote control signal is input, the process proceeds to step S2.

In step S2, it is checked whether or not the remote control signal is a "first function data signal". If it is the “first function data signal”, the “video input N (N = 1, 2, 3)” stored in the first memory circuit section 41 of FIG. S
Move to 3.

In step S 3, “Video input 1
(N = 1) "is checked. "Video input 1
(N = 1) ", the process proceeds to step S4, and if not" video input 1 (N = 1) ", the process proceeds to step S5.

In step S4, the second data shown in FIG.
"Video playback device 11 (VCR of Company A)" corresponding to "video input terminal 14a (video input 1)" is read out from the memory circuit section 42 of "1". Then, the “second function data signal” of the “video playback device 11 (company A VTR)” of the function corresponding to the “first function data signal” is output from the third memory circuit unit 43 in FIG. Is read. For example, if the function corresponding to the “first function data signal” is “reproduction”, “01” is set as the “second function data signal”.
a ** 1 "is read out. After the reading, the process proceeds to step S9.

In step S5, "video input 2
(N = 2) ". "Video input 2
(N = 2) ", the process proceeds to step S6, and if not" video input 2 (N = 2) ", the process proceeds to step S7.

In step S6, the second of FIG.
"Video playback device 12 (VCR of Company B)" corresponding to "Video input terminal 14b (Video input 2)" is read out from the memory circuit section 42 of "1". Then, the "second function data signal" of the "video playback device 12 (VCR of Company B)" of the function corresponding to the "first function data signal" is output from the third memory circuit unit 43 in FIG. Is read. For example, if the function corresponding to the “first function data signal” is “stop”, “10” is set as the “second function data signal”.
b ** 2 ”is read out. After the reading, the process proceeds to step S9.

In step S 7, “Video input 3
(N = 3) ". "Video input 3
(N = 3) ”, the process proceeds to step S8.

In step S8, the second of FIG.
"Video playback device 13 (VCR of Company C)" corresponding to "video input terminal 14c (video input 3)" is read out from the memory circuit section 42 of "1". Then, the “second function data signal” of the “video playback device 13 (VCR of Company C)” of the function corresponding to the “first function data signal” is output from the third memory circuit unit 43 in FIG. Is read. For example, the function corresponding to the “first function data signal” is “fast forward”
Then, as “the second function data signal”, “1”
1c ** 3 "is read out. After the reading, the process proceeds to step S9.

In step S9, steps S4, S
6. The “second function data signal” read in S8 is output to the remote control transmission circuit unit 37.

As described above, when the "first function data signal" is input, the data conversion means 40 outputs the first function data signal.
Of the selected video playback device from the memory circuit unit 41 and the second memory circuit unit 42 of the second embodiment, and reads the “second function data” corresponding to the function based on the “first function data signal” of the video playback device. The signal is read out from the third memory circuit portion 43 and output.

FIG. 5 is a flowchart for explaining the operation of the video input setting means 44 of the video wireless transmission / reception system 1 of the present embodiment. The video input setting means 44 is composed of, for example, a microcomputer. The operation of the video input setting means 44 when the video input setting means 44 is constituted by a microcomputer will be described below with reference to FIG.

In step S1, it is checked whether or not a remote control signal has been input from the light receiving circuit unit 36. When a remote control signal is input, the process proceeds to step S2.

At step S2, the timer is reset (t ← 0), and the routine goes to step S3.

In step S3, whether the remote control signal in step S1 is a "selection data signal", that is, the video input selection key 3 of the infrared remote control transmitter 35
Check if 5a is pressed. If the video input selection key 35a has been pressed, the timer is incremented (t ← t + 1), and it is checked whether or not the timer has counted the specified time T (t ≧ T). Timer is the specified time T
If (t ≧ T), the process proceeds to step S4, and if the timer has not counted the specified time T (t <T),
It returns to step S3.

Step S3 corresponds to the memory rewriting setting means. The memory rewriting setting means includes the timer for measuring a specified time T, and the video input selection key 3 of the infrared remote control transmitter 35 of the video wireless transmission / reception system 1.
By pressing and holding 5a for a specified time T, the second memory circuit section 42 is set to be in a rewritable state, and by continuously pressing the video input selection key 35a for a specified time T, selection of the video input terminals 14a, 14b, and 14c is performed. The setting of the memory rewriting of the second memory circuit section 42 can be performed.

In step S4, it is checked whether the "video input terminal 14a (video input 1)" has been selected. If “video input terminal 14a (video input 1)” is selected, register N is set to 1 (N ←
1) Thereafter, the process proceeds to step S7. "Video input terminal 14a
If “(video input 1)” is not selected, the process proceeds to step S5.

In step S5, it is checked whether the "video input terminal 14b (video input 2)" has been selected. If "video input terminal 14b (video input 2)" is selected, register N is set to 2 (N ←
2) Then, the process proceeds to step S7. "Video input terminal 14b
If “(video input 2)” is not selected, the process proceeds to step S6.

In step S6, it is checked whether the "video input terminal 14c (video input 3)" has been selected. If "video input terminal 14c (video input 3)" is selected, register N is set to 3 (N ←
3) Then, the process proceeds to step S7.

In step S7, after the video input N (N = 1, 2, 3) is stored in the first memory circuit section 41, the process proceeds to step S8.

In step S8, it is checked whether or not the "second function data signal" which is a remote control signal of the infrared remote control transmitter (not shown) of each of the video reproducing devices 11, 12, and 13 has been input from the light receiving circuit unit 36. .
When the "second function data signal" is input, the process proceeds to step S9.

In step S9, it is checked whether or not the discrimination code of the "second function data signal" is "01" = video playback device 11 (VCR of Company A). If the determination code is “01”, the process proceeds to step S10, and if the determination code is not “01”, the process proceeds to step S11.

In step S 10, “video input N = video reproducing apparatus 11 (company A VTR)” is input to the second memory circuit section 42.

In step S11, it is checked whether or not the discrimination code of the "second function data signal" is "10" = video playback device 12 (VTR of Company B). If the determination code is “10”, the process proceeds to step S12,
If the determination code is not "10", the process proceeds to step S13.

In step S 12, “video input N = video playback device 12 (VCR of Company B)” is input to the second memory circuit section 42.

In step S13, it is checked whether or not the discrimination code of the "second function data signal" is "11" = video reproducing device 13 (VCR of Company C). If the determination code is “11”, the process proceeds to step S14.

In step S 14, “video input N = video reproducing device 13 (VCR of Company C)” is input to the second memory circuit section 42.

Steps S9, S11 and S13 correspond to device discriminating means for discriminating the video reproducing devices 11, 12, and 13 from the remote control signals of the infrared remote control transmitters (not shown) of the video reproducing devices 11, 12, and 13, respectively. .

As described above, the video input setting means 44
Rewrites the second memory circuit unit 42 with a device discriminating means for discriminating the video reproducing devices 11, 12, and 13 from a remote control signal of an infrared remote control transmitter (not shown) of each of the video reproducing devices 11, 12, and 13. Memory rewriting setting means for setting the second memory circuit section 42 to a rewriteable state when the second memory circuit section 42 is set to a rewriting state by the memory rewriting setting means.
Video input selection key 35 of infrared remote controller transmitter 35
The video input terminals 14a, 14b, and 14c are selected by a, and the video playback device determined by the device determination unit is input to the video input terminals.

[Second Embodiment] FIG. 6 is a block circuit diagram showing a schematic configuration of a video radio transmission / reception system according to a second embodiment of the present invention. Compared with the block diagram showing the schematic configuration of the video wireless transmission / reception system 1 according to the first embodiment of the present invention described with reference to FIG. 1, the video wireless transmission / reception system 1 shown in FIG. The data conversion unit 40, the first memory circuit unit 41, the second memory circuit unit 42, the third memory circuit unit 43, and the video input setting unit 44, which have been used in the video wireless transmission / reception system 2 of FIG. The difference is that the transmitter 10 is provided as a data conversion unit 20, a first memory circuit unit 21, a second memory circuit unit 22, a third memory circuit unit 23, and a video input setting unit 24.

Therefore, in the video wireless transmission / reception system 2 of FIG. 6, the external view of the remote control transmitter 35 is the same as that of FIG. 2, and the first memory circuit section 21, the second memory circuit section 22, and the third memory The diagram describing the state of the memory contents of the circuit section 23 is the same as FIG.
0 is the same as FIG. 4, and the flowchart explaining the operation of the video input setting means 24 is the same as FIG. Hereinafter, a second embodiment of the present invention will be described with reference to FIG. 6 and FIGS. 2 to 5.

FIG. 6 is a block circuit diagram showing a schematic configuration of the video wireless transmission / reception system 2 of the present embodiment. The video wireless transmission / reception system 2 of the present embodiment shown in FIG. 6 has the following circuit configuration. The video wireless transmission / reception system 2
It comprises a video transmitter 10 and a video receiver 30.

The video transmitter 10 is the video playback device 1
1, 12, 13; video input switching circuit 14, video transmission circuit 15, antenna 16, remote control reception circuit 1
7, a light emitting circuit unit 18, a data conversion unit 20, a first memory circuit unit 21, a second memory circuit unit 22, a third memory circuit unit 23, and a video input setting unit 24. Then, the video input switching circuit unit 14
a, 14b and 14c.

The video reproducing devices 11, 12, 13 are provided with video input terminals 14a, 14a of the video input switching circuit 14.
b, 14c, the output of the video input switching circuit 14 is connected to the input of the video transmission circuit 15, and the output of the video transmission circuit 15 is connected to the antenna 16. The antenna 16 is connected to an input of a remote control receiving circuit unit 17, an output of the remote control receiving circuit unit 17 is connected to inputs of a data conversion unit 20 and a video input setting unit 24, and an output of the data conversion unit 20 is a light emitting circuit. It is connected to the unit 18.

A first memory circuit section 21, a second memory circuit section 22, and a third memory circuit section 23 are connected to the data conversion means 20, and the first memory circuit section 21 and the second memory circuit section 23 are connected to the data conversion means 20. The video input setting means 24 is provided in the memory circuit section 22.
Is connected.

The video receiver 30 includes an antenna 31, a video receiving circuit section 32, an audio circuit section 33, a display circuit section 34,
It comprises an infrared remote control transmitter 35, a light receiving circuit section 36 and a remote control transmission circuit section 37.

The antenna 31 is connected to the input of the video receiving circuit 32, and the output of the video receiving circuit 32 is connected to the audio circuit 33 and the display circuit 34. The light receiving circuit unit 36 is connected to an input of the remote control transmitting circuit unit 37,
The output of the remote control transmission circuit unit 37 is connected to the antenna 31.

Next, the operation of the video radio transmission / reception system 2 of the present embodiment shown in FIG. 6 will be described. Video transmitter 1
At 0, one of the video reproducing apparatuses 11, 12, and 13 is selected by switching the video input switching circuit section 14. In FIG. 6, for example, the video playback device 12 is selected. The video signal output from the video signal generator 12 is converted into a high-frequency video signal by the video transmission circuit unit 15 and transmitted from the antenna 16 to the video receiver 30.

In the video receiver 30, the high frequency video signal transmitted from the video transmitter 10 is received by the antenna 31. The received high-frequency video signal is converted into a video signal and an audio signal by a video receiving circuit unit 32, the video signal is displayed as an image by a display circuit unit 34, and the audio signal is converted into audio by an audio circuit unit 33. Here, the display circuit unit 34 and the audio circuit unit 33 may be a television 38.

In the video receiver 30, the infrared remote control transmitter 35 is connected to the plurality of video reproducing devices 11, 1
A “selection data signal” for selecting one of 2, 13;
A "first function data signal" for operating a plurality of video reproducing apparatuses 11, 12, and 13 in common is generated as an infrared signal IR.

The infrared signal IR from the infrared remote controller transmitter 35 is converted by the light receiving circuit section 36 into a remote control signal which is an electric signal, that is, a “selection data signal” and a “first function data signal”. The signal is converted into a high frequency remote control signal by the remote control transmission circuit section 37 and transmitted to the video transmitter 10 from the antenna 31.

In the video transmitter 10, the antenna 16
Is converted into the original remote control signal by the remote control receiving circuit unit 17, and the remote control signal is input to the data conversion unit 20.

The data conversion means 20 converts the “first function data signal” into a “second function data signal” for operating the selected video reproducing apparatus based on the “selection data signal”. I do. This “second function data signal” is converted from an electric signal into an infrared signal IR by the light emitting circuit section 18, and the infrared signal IR is inputted to a remote control light receiving section (not shown) of each of the video reproducing devices 11, 12 and 13. You.

A video input terminal selected based on the “selection data signal” is stored in the first memory circuit section 21, and a plurality of video input terminals are stored in the second memory circuit section 22. The video playback devices 11, 12, and 13 connected to the terminals 14a, 14b, and 14c, respectively, are stored in a memory, and the third memory circuit section 23 stores the "first" of each of the plurality of video playback devices 11, 12, and 13. 2
Is stored in the memory.

The video input setting means 24 inputs the video input terminal selected on the basis of the "selection data signal" to the first memory circuit section 21 and a plurality of video input terminals 14a, 14b, 14c. The video playback devices 11, 12, and 13 connected to each are input to the second memory circuit unit 22.

As described above, the infrared remote control transmitter 35
The infrared signal IR is transmitted from the light receiving circuit unit 36 → the remote control transmitting circuit unit 37 → the antenna 31 → the antenna 16 → the remote control receiving circuit unit 17 → the data conversion unit 20 → the light emitting circuit unit 18.
→ The data is transmitted through the path of the remote control light receiving unit (not shown) of each of the video reproducing devices 11, 12,
0, which converts a "first function data signal" for commonly operating a plurality of video playback devices 11, 12, and 13 into a "second function data signal" for operating the selected video playback device. By doing so, a single infrared remote controller transmitter 35 can be used to control a plurality of video playback devices 11, 12, and 13 installed at remote locations.

FIG. 2 showing an external view of the infrared remote control transmitter 35, and FIG. 3 showing the state of the memory contents of the first memory circuit section 21, the second memory circuit section 22 and the third memory circuit section 23. Is the same as the description in the [first embodiment] and is duplicated, so that the description is omitted.

Next, referring to FIG.
The operation of the data conversion means 20 when is constituted by a microcomputer will be described below.

In step S1, it is checked whether a remote control signal has been input from the remote control receiving circuit unit 17. When a remote control signal is input, the process proceeds to step S2.

In step S2, it is checked whether or not the remote control signal is a "first function data signal". If it is the “first function data signal”, the “video input N (N = 1, 2, 3)” stored in the first memory circuit unit 21 of FIG. S
Move to 3.

In step S 3, “Video input 1
(N = 1) "is checked. "Video input 1
(N = 1) ", the process proceeds to step S4, and if not" video input 1 (N = 1) ", the process proceeds to step S5.

In step S4, the second data shown in FIG.
"Video playback device 11 (Company A VTR)" corresponding to "Video input terminal 14a (Video input 1)" is read out from the memory circuit section 22 of "1". Then, the “second function data signal” of the “video playback device 11 (company A VTR)” of the function corresponding to the “first function data signal” is output from the third memory circuit unit 23 in FIG. Is read. For example, if the function corresponding to the “first function data signal” is “reproduction”, “01” is set as the “second function data signal”.
a ** 1 "is read out. After the reading, the process proceeds to step S9.

In step S5, "Video input 2
(N = 2) ". "Video input 2
(N = 2) ", the process proceeds to step S6, and if not" video input 2 (N = 2) ", the process proceeds to step S7.

In step S6, the second data shown in FIG.
From the memory circuit unit 22 of the “video input terminal 14b (video input 2)”, the “video playback device 12 (company V VTR)” is read. Then, the “second function data signal” of the “video playback device 12 (company B VTR)” of the function corresponding to the “first function data signal” is output from the third memory circuit unit 23 in FIG. Is read. For example, if the function corresponding to the “first function data signal” is “stop”, “10” is set as the “second function data signal”.
b ** 2 ”is read out. After the reading, the process proceeds to step S9.

In step S7, "video input 3
(N = 3) ". "Video input 3
(N = 3) ”, the process proceeds to step S8.

In step S8, the second data shown in FIG.
"Video playback device 13 (VCR of Company C)" corresponding to "video input terminal 14c (video input 3)" is read out from the memory circuit unit 22 of. Then, the “second function data signal” of the “video playback device 13 (VCR of Company C)” of the function corresponding to the “first function data signal” is output from the third memory circuit unit 23 in FIG. Is read. For example, the function corresponding to the “first function data signal” is “fast forward”
Then, as “the second function data signal”, “1”
1c ** 3 "is read out. After the reading, the process proceeds to step S9.

At step S9, steps S4, S
6. The “second function data signal” read in S8 is output to the light emitting circuit unit 18.

As described above, when the "first function data signal" is input, the data conversion means 20 outputs the first function data signal.
Of the selected video reproducing device from the memory circuit unit 21 and the second memory circuit unit 22 of the second memory circuit unit 22, and the “second function data” corresponding to the function based on the “first function data signal” of the video reproducing device. The signal is read out from the third memory circuit unit 23 and output.

Next, the operation of the video input setting means 24 when the video input setting means 24 is constituted by a microcomputer will be described with reference to FIG.

In step S1, it is checked whether or not a remote control signal has been input from the remote control receiving circuit unit 17. When a remote control signal is input, the process proceeds to step S2.

At step S2, the timer is reset (t ← 0), and the routine goes to step S3.

In step S3, whether the remote control signal in step S1 is a "selection data signal", that is, the video input selection key 3 of the infrared remote control transmitter 35
Check if 5a is pressed. If the video input selection key 35a has been pressed, the timer is incremented (t ← t + 1), and it is checked whether or not the timer has counted the specified time T (t ≧ T). Timer is the specified time T
If (t ≧ T), the process proceeds to step S4, and if the timer has not counted the specified time T (t <T),
It returns to step S3.

Step S3 corresponds to the memory rewriting setting means. The memory rewriting setting means includes the timer for measuring a specified time T, and a video input selection key 3 of the infrared remote control transmitter 35 of the video wireless transmission / reception system 2.
By pressing and holding 5a for a specified time T, the second memory circuit section 22 is set in a state where it can be rewritten. By pressing and holding the video input selection key 35a for a specified time T, the video input terminals 14a, 14b, and 14c are selected. The setting of the memory rewriting of the second memory circuit section 22 can be performed.

In step S4, it is checked whether the "video input terminal 14a (video input 1)" has been selected. If “video input terminal 14a (video input 1)” is selected, register N is set to 1 (N ←
1) Thereafter, the process proceeds to step S7. "Video input terminal 14a
If “(video input 1)” is not selected, the process proceeds to step S5.

In step S5, it is checked whether the "video input terminal 14b (video input 2)" has been selected. If "video input terminal 14b (video input 2)" is selected, register N is set to 2 (N ←
2) Then, the process proceeds to step S7. "Video input terminal 14b
If “(video input 2)” is not selected, the process proceeds to step S6.

In step S6, it is checked whether "video input terminal 14c (video input 3)" has been selected. If "video input terminal 14c (video input 3)" is selected, register N is set to 3 (N ←
3) Then, the process proceeds to step S7.

In step S7, after the video input N (N = 1, 2, 3) is stored in the first memory circuit section 21, the process proceeds to step S8.

In step S 8, it is checked whether or not “second function data signal”, which is a remote control signal of an infrared remote control transmitter (not shown) of each of video reproducing apparatuses 11, 12, and 13, has been input from remote control receiving circuit section 17. I do. When the "second function data signal" is input, the process proceeds to step S9.

In step S9, it is checked whether or not the discrimination code of the "second function data signal" is "01" = video playback apparatus 11 (VCR of Company A). If the determination code is “01”, the process proceeds to step S10, and if the determination code is not “01”, the process proceeds to step S11.

In step S 10, “video input N = video reproducing apparatus 11 (company A VTR)” is input to the second memory circuit section 22.

In step S11, it is checked whether or not the discrimination code of the "second function data signal" is "10" = video reproducing apparatus 12 (VCR of Company B). If the determination code is “10”, the process proceeds to step S12,
If the determination code is not "10", the process proceeds to step S13.

In step S 12, “video input N = video playback device 12 (VCR of Company B)” is input to the second memory circuit section 22.

In step S13, it is checked whether or not the discrimination code of the "second function data signal" is "11" = video playback device 13 (VCR of Company C). If the determination code is “11”, the process proceeds to step S14.

In step S 14, “video input N = video playback device 13 (VCR of Company C)” is input to the second memory circuit section 22.

Steps S9, S11 and S13 correspond to device discriminating means for discriminating video reproducing devices 11, 12, and 13 from remote control signals of infrared remote control transmitters (not shown) of video reproducing devices 11, 12, and 13, respectively. .

As described above, the video input setting means 24
Rewrites the second memory circuit unit 22 with a device discriminating means for discriminating the video reproducing devices 11, 12, and 13 from a remote control signal of an infrared remote control transmitter (not shown) of each of the video reproducing devices 11, 12, and 13. And a memory rewriting setting means for setting the second memory circuit section 22 to a rewriteable state by the memory rewriting setting means.
Video input selection key 35 of infrared remote controller transmitter 35
The video input terminals 14a, 14b, and 14c are selected by a, and the video playback device determined by the device determination unit is input to the video input terminals.

As described above, in the first and second embodiments, the video reproducing devices 11, 12, 1 of the video transmitter 10 are used.
3 has been described using a VTR as an example, but is not limited to a VTR.
Any device that can reproduce video can be used. Further, the audio circuit section 33 and the display circuit section 34 of the video receiver 30 may be replaced with a television 38. By replacing as described above, the video and audio of the video playback device can be viewed on a television set at a remote location.

Also, the case of three video playback devices 11, 12, and 13 has been described as an example, but the number is not limited to three.
It is sufficient that the number is equal to or larger than the number of units.

[0125]

As described above, according to the present invention, there are provided a plurality of different video reproducing apparatuses, a video input switching circuit for selecting one of the plurality of video reproducing apparatuses, and the selected video reproducing apparatus. A video transmission circuit section that converts a video signal from the PC into a high-frequency video signal and transmits the signal, a remote control receiving circuit section that converts a received high-frequency remote control signal into the original remote control signal, and converts the remote control signal from an electric signal to an infrared signal. A video transmitter comprising a light emitting circuit unit for converting the video signal, a video receiving circuit unit for receiving the high-frequency video signal and converting it into a video signal and an audio signal, a display circuit unit for displaying the video signal as an image, and the audio An audio circuit for converting a signal into a voice, an infrared remote control transmitter, and an infrared signal from the infrared remote control transmitter being converted into a remote control signal which is an electric signal; In a video wireless transmission and reception system comprising a light receiving circuit unit and a video receiver having a remote control transmission circuit unit that converts the remote control signal into a high-frequency remote control signal and transmits the infrared remote control transmitter, One of the video playback devices
A video input selection key for generating a selection data signal for selecting one of the plurality of video playback devices; and a common function key for generating a first function data signal for commonly operating the plurality of different video playback devices. A receiver configured to convert the first function data signal into a second function data signal for operating the selected video playback device based on the selection data signal; Is what you do.

Therefore, according to the present invention, the plurality of different video reproducing apparatuses on the video transmitter side can be transmitted to the common remote controller without any modification on the video transmitter side. Machine. That is, for example, when the manufacturers of the plurality of video playback devices are different, in order to operate the video playback devices, an infrared remote control transmitter dedicated to each video playback device is required, and the video playback device to be operated is required. The inconvenience of having to operate while changing the infrared remote control transmitter each time is changed can be eliminated.

Further, according to the present invention, the video input switching circuit section has a plurality of video input terminals for connecting the plurality of video reproducing devices, and the video receiver selects a video input terminal based on the selection data signal. A first memory circuit unit storing a video input terminal connected thereto, a second memory circuit unit storing a video playback device connected to each of the plurality of video input terminals, and the plurality of video playback devices A third memory circuit section in which each of the second function data signals is stored, wherein the data conversion means comprises:
When the first function data signal is input, the selected video playback device is read from the first and second memory circuit units, and the function based on the first function data signal of the video playback device is performed. And reading out and outputting the second function data signal corresponding to the above from the third memory circuit section.

Therefore, according to the present invention, by providing the video receiver with the first, second and third memory circuit sections without any modification to the video transmitter, When one of the plurality of video playback devices is selected by switching the video input switching circuit portion, the user may select a video playback device connected to each input of the video input switching circuit portion. The trouble of having to remember can be eliminated.

Further, according to the present invention, the video receiver inputs a video input terminal selected based on the selection data signal to the first memory circuit portion and connects the video input terminal to each of the plurality of video input terminals. Video input setting means for inputting the video reproduction device to the second memory circuit section.

Therefore, according to the present invention, the video receiver is provided with the video input setting means without any modification to the video transmitter, so that the user can control each of the video input switching circuit sections. When the connection of the video reproducing apparatus connected to the input of the video playback device is changed, the trouble of having to remember the changed connection each time can be solved.

Further, the present invention provides a plurality of different video playback devices, a video input switching circuit for selecting one of the plurality of video playback devices, and a video signal from the selected video playback device. A video transmission circuit for converting a high-frequency video signal and transmitting the signal; a remote control receiving circuit for converting the received high-frequency remote control signal to the original remote control signal; and a light emitting circuit for converting the remote control signal from an electric signal to an infrared signal. And a video receiving circuit unit for receiving the high-frequency video signal and converting it to a video signal and an audio signal, a display circuit unit for displaying the video signal as an image, and converting the audio signal to audio Circuit, an infrared remote control transmitter, and a light receiving circuit for converting an infrared signal from the infrared remote control transmitter into a remote control signal that is an electric signal And a video receiver having a remote control transmission circuit for converting the remote control signal into a high-frequency remote control signal and transmitting the converted signal. A video input selection key for generating a selection data signal for selecting one of the devices, and a common function key for generating a first function data signal for commonly operating the plurality of different video playback devices. The video transmitter includes a data conversion unit that converts the first function data signal into a second function data signal for operating the selected video playback device based on the selection data signal. It is characterized by the following.

Therefore, according to the present invention, the plurality of different video reproducing devices on the video transmitter side can be transmitted to the common remote controller without any modification on the video receiver side. Machine. That is, for example, when the manufacturers of the plurality of video playback devices are different, in order to operate the video playback devices, an infrared remote control transmitter dedicated to each video playback device is required, and the video playback device to be operated is required. The inconvenience of having to operate while changing the infrared remote control transmitter each time is changed can be eliminated.

Also, in the present invention, the video input switching circuit section has a plurality of video input terminals for connecting the plurality of video reproducing devices, and the video transmitter selects a video input terminal based on the selection data signal. A first memory circuit unit storing a video input terminal connected thereto, a second memory circuit unit storing a video playback device connected to each of the plurality of video input terminals, and the plurality of video playback devices A third memory circuit section in which each of the second function data signals is stored, wherein the data conversion means comprises:
When the first function data signal is input, a selected video playback device is read from the first and second memory circuit units, and a function based on the first function data signal of the video playback device is performed. And reading out and outputting the second function data signal corresponding to the above from the third memory circuit section.

Therefore, according to the present invention, the video transmitter can be provided with the first, second and third memory circuit sections without any modification to the video receiver. When one of the plurality of video playback devices is selected by switching the video input switching circuit portion, the user may select a video playback device connected to each input of the video input switching circuit portion. The trouble of having to remember can be eliminated.

Further, according to the present invention, the video transmitter inputs a video input terminal selected based on the selection data signal to the first memory circuit unit and connects the video input terminal to each of the plurality of video input terminals. Video input setting means for inputting the video reproduction device to the second memory circuit section.

Therefore, according to the present invention, the video transmitter is provided with the video input setting means without any modification to the video receiver, so that the user can operate each of the video input switching circuit sections. When the connection of the video reproducing apparatus connected to the input of the video playback device is changed, the trouble of having to remember the changed connection each time can be solved.

Further, the present invention is characterized in that the video input setting means rewrites the second memory circuit section with the device discriminating means for discriminating the video reproducing apparatus from the remote control signal of the infrared remote control transmitter of the video reproducing apparatus. Memory rewriting setting means for setting a state in which the second memory circuit unit can be rewritten by the memory rewriting setting means. A video input terminal is selected by the video input selection key, and the video playback device determined by the device determination means is input to the video input terminal.

Therefore, according to the present invention, the user:
When the connection of the video playback device connected to each input of the video input switching circuit unit is changed, no special device is required, and the infrared remote control transmitter of the video playback device and the video wireless transmission / reception system The contents of the second memory circuit unit can be rewritten using an infrared remote control transmitter.

Further, in the present invention, the memory rewriting setting means includes a timer for counting a specified time, and the memory rewriting setting means keeps pressing the video input selection key of the infrared remote control transmitter of the video wireless transmission / reception system for the specified time. The second memory circuit section is set in a rewritable state, and the video input terminal can be selected and the memory rewrite setting can be performed by pressing and holding the video input selection key for the specified time. Is what you do.

Therefore, according to the present invention, the user
When the connection of the video playback device connected to each input of the video input switching circuit unit is changed, no special device is required, and the infrared remote control transmitter of the video playback device and the video wireless transmission / reception system The contents of the second memory circuit unit can be rewritten using an infrared remote control transmitter.

Further, it is not necessary to provide a dedicated operation key for rewriting the contents of the second memory circuit section in the infrared remote control transmitter of the video reproducing apparatus and the infrared remote control transmitter of the video wireless transmission / reception system. That is, the contents of the second memory circuit unit can be rewritten without changing the infrared remote control transmitter of the video reproducing apparatus and the infrared remote control transmitter of the video wireless transmission / reception system.

Further, according to the present invention, the display circuit section and the audio circuit section of the video receiver are televisions, and the infrared remote control transmitter of the video wireless transmission / reception system is an infrared remote control transmitter for operating the television. It is characterized by being.

Therefore, according to the present invention, the plurality of different video reproducing devices on the video transmitter side can be operated from the video receiver side by the infrared remote control transmitter for operating one television. it can. That is, for example, when the manufacturers of the plurality of video playback devices are different, in order to operate the video playback devices, an infrared remote control transmitter dedicated to each video playback device is required, and the video playback device to be operated is required. The inconvenience of having to operate while changing the infrared remote control transmitter each time is changed can be eliminated.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing a schematic configuration of a video wireless transmission / reception system according to a first embodiment of the present invention.

FIG. 2 is an external view of an infrared remote control transmitter of the video wireless transmission / reception system according to the first embodiment of the present invention.

FIG. 3 is a diagram for explaining states of memory contents of first, second, and third memory circuit units of the video wireless transmission / reception system according to the first embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation of a data conversion unit of the video wireless transmission / reception system according to the first embodiment of the present invention.

FIG. 5 is a flowchart illustrating an operation of a video input setting unit of the video wireless transmission / reception system according to the first embodiment of the present invention.

FIG. 6 is a block circuit diagram showing a schematic configuration of a video wireless transmission / reception system according to a second embodiment of the present invention.

FIG. 7 is a block circuit diagram showing a schematic configuration of a conventional video wireless transmission / reception system.

[Explanation of symbols]

 1, 2 Video wireless transmission / reception system 10 Video transmitter 11, 12, 13 Video playback device 14 Video input switching circuit portion 14a, 14b, 14c Video input terminal 15 Video transmission circuit portion 16 Antenna 17 Remote control receiving circuit portion 18 Light emitting circuit portion 20 Data conversion unit 21 First memory circuit unit 22 Second memory circuit unit 23 Third memory circuit unit 24 Video input setting unit 30 Video receiver 31 Antenna 32 Video reception circuit unit 33 Audio circuit unit 34 Display circuit unit 35 Infrared Remote control transmitter 35a Video input selection key 35c Common function key 36 Light receiving circuit unit 37 Remote control transmission circuit unit 38 Television 40 Data conversion unit 41 First memory circuit unit 42 Second memory circuit unit 43 Third memory circuit unit 44 Video input setting means

Continued on the front page F term (reference) 5C018 FA03 FA04 FB01 5C025 AA01 BA21 BA27 5C056 AA01 BA08 CA08 CA11 DA11 5K048 AA04 AA13 BA03 DA02 DB04 EB14 EB15 HA04 HA13

Claims (9)

[Claims] 1. A plurality of different video playback devices, a video input switching circuit for selecting one of the plurality of video playback devices, and a video signal from the selected video playback device being converted to a high-frequency video signal. A video transmission circuit for converting and transmitting the signal; a remote control receiving circuit for converting the received high-frequency remote control signal into the original remote control signal; and a light emitting circuit for converting the remote control signal from an electric signal to an infrared signal. A video transmitter, a video receiving circuit unit for receiving the high-frequency video signal and converting it to a video signal and an audio signal, a display circuit unit for displaying the video signal as an image, and an audio circuit unit for converting the audio signal to audio An infrared remote control transmitter, a light receiving circuit unit for converting an infrared signal from the infrared remote control transmitter into a remote control signal as an electric signal, And a video receiver having a remote control transmission circuit unit for converting a radio signal into a high frequency remote control signal and transmitting the video signal. The infrared remote control transmitter of the video radio transmission / reception system includes: A video input selection key for generating a selection data signal for selecting one, and a common function key for generating a first function data signal for commonly operating the plurality of different video playback devices; The video receiver further includes data conversion means for converting the first function data signal into a second function data signal for operating the selected video playback device based on the selected data signal. Video wireless transmission and reception system. 2. The video input switching circuit section has a plurality of video input terminals for connecting the plurality of video playback devices, and the video receiver selects a video selected based on the selection data signal. A first memory circuit unit in which an input terminal is stored, a second memory circuit unit in which a video playback device connected to each of the plurality of video input terminals is stored, and a second memory circuit unit in which a video playback device is connected. And a third memory circuit unit in which two function data signals are stored. The data conversion unit is configured to output the first function data signal from the first and second memory circuit units when the first function data signal is input. The selected video playback device is read out, and a second function data signal corresponding to a function based on the first function data signal of the video playback device is sent from the third memory circuit unit. Video radio transceiver system according to claim 1, wherein the reading output. 3. The video receiver, wherein a video input terminal selected based on the selection data signal is input to the first memory circuit unit, and a video playback terminal connected to each of the plurality of video input terminals. The device is connected to the second
3. The video wireless transmission / reception system according to claim 2, further comprising a video input setting unit for inputting the video input to the memory circuit unit. 4. A plurality of different video playback devices, a video input switching circuit for selecting one of the plurality of video playback devices, and converting a video signal from the selected video playback device into a high-frequency video signal. A video transmission circuit for converting and transmitting the signal; a remote control receiving circuit for converting the received high-frequency remote control signal into the original remote control signal; and a light emitting circuit for converting the remote control signal from an electric signal to an infrared signal. A video transmitter, a video receiving circuit unit for receiving the high-frequency video signal and converting it to a video signal and an audio signal, a display circuit unit for displaying the video signal as an image, and an audio circuit unit for converting the audio signal to audio An infrared remote control transmitter, a light receiving circuit unit for converting an infrared signal from the infrared remote control transmitter into a remote control signal that is an electric signal, And a video receiver having a remote control transmission circuit unit for converting the radio signal into a high-frequency remote control signal and transmitting the signal. The infrared remote control transmitter of the video radio transmission / reception system includes: A video input selection key for generating a selection data signal for selecting one, and a common function key for generating a first function data signal for commonly operating the plurality of different video playback devices; The video transmitter includes data conversion means for converting the first function data signal into a second function data signal for operating the selected video playback device based on the selection data signal. Video wireless transmission and reception system. 5. The video input switching circuit section has a plurality of video input terminals for connecting the plurality of video playback devices, and the video transmitter selects a video selected based on the selection data signal. A first memory circuit unit in which an input terminal is stored, a second memory circuit unit in which a video playback device connected to each of the plurality of video input terminals is stored, and a second memory circuit unit in which a video playback device is connected. And a third memory circuit unit in which two function data signals are stored. The data conversion unit is configured to output the first function data signal from the first and second memory circuit units when the first function data signal is input. The selected video playback device is read out, and a second function data signal corresponding to a function based on the first function data signal of the video playback device is sent from the third memory circuit unit. Video radio transceiver system according to claim 4, characterized in that the read and output. 6. The video transmitter inputs a video input terminal selected based on the selection data signal to the first memory circuit unit, and reproduces a video signal connected to each of the plurality of video input terminals. The device is connected to the second
6. The video wireless transmission / reception system according to claim 5, further comprising a video input setting unit for inputting the video input to the memory circuit unit. 7. The video input setting means includes means for judging a video reproducing apparatus from a remote control signal of an infrared remote control transmitter of the video reproducing apparatus, and setting the second memory circuit section to a state capable of being rewritten. Memory rewriting setting means for setting, when the memory rewriting setting means sets the second memory circuit section in a state capable of rewriting, a video input selection of the infrared remote control transmitter of the video wireless transmission / reception system. 7. The video wireless transmission / reception system according to claim 3, wherein a video input terminal is selected by a key, and a video playback device determined by the device determination unit is input to the video input terminal. 8. The memory rewriting setting means includes a timer for measuring a specified time, and the second memory is maintained by pressing a video input selection key of an infrared remote control transmitter of the video wireless transmission / reception system for the specified time. 8. The circuit section is set in a state in which rewriting is possible, and the video input terminal can be selected and the memory rewriting can be set by an operation of holding down a video input selection key for the prescribed time. A video wireless transmission / reception system as described. 9. The display circuit unit and the audio circuit unit of the video receiver are televisions, and the infrared remote control transmitter of the video wireless transmission / reception system is an infrared remote control transmitter for operating the television. The video wireless transmission / reception system according to any one of claims 1 to 8, wherein: