JPH07192446A - Linked operating apparatus of vcr and tv - Google Patents

Abstract

PURPOSE: To execute the cooperative operation of VCR and TV only by means of a video signal transmission line and to control both directions between TV and VCR. CONSTITUTION: A VCR caption encoder 21b encodes a cooperative operation control signal in a TV control signal outputted from a VCR micro computer 22, loads it on a video signal and the signal is transmitted to a TV caption decoder 14b. The TV caption decoder 14b decodes the pertinent control signal and the pertinent function of TV 10 is controlled. A TV caption encoder 14a encodes the cooperative operation control signal in a VCR control signal outputted from a TV microcomputer 12, loads it on the video signal and it is transmitted to a VCR caption decoder 21a. The VCR caption decoder 21a decodes the pertinent control signal and the pertinent function of VCR 20 is controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for operating a VCR and a TV, and in particular, a VCR and a TV signal are separated from each other by an operation control signal line and a video signal line according to the selection of the VCR caption system. The present invention relates to a device for linking a VCR and a TV, which can be linked with an existing video signal line only, which had to have a connecting terminal.

[0002]

2. Description of the Related Art FIG. 1 is a connection diagram of a conventional general VCR and a TV, in which a conventional VCR-TV linked actuation device transmits voice in a VCR (1) and a TV (2). It is composed of an audio line (3), a video line (4) for transmitting an image, and a link operation control line (5) for transferring a link operation signal.

A conventional VCR and TV configured as described above
The operation of the linked actuating device will be described with reference to FIG. 1 of the accompanying drawings.

First, when a user inserts a video tape into a reproducing device and plays it, an audio signal is transmitted to the TV through the audio line (3) and a video signal is transmitted through the video line (4), and the TV and the VCR are connected. The link operation control signal for controlling the link operation of the is transmitted through the link operation control line (5).

According to the control signal transmitted through the link operation control line 5, the TV senses whether the VCR is playing or not, and the VCR and the TV are linked (eg TV / VC).
R mode switching) is being performed.

However, such a conventional VCR / TV link actuation device requires a separate link actuation control line (5), so a separate connection terminal must be installed on the VCR and TV. This is a unidirectional control method in which the control operation of the TV is controlled by the control signal of the VCR, and there is a problem in that it causes inconvenience in use and confusion.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a VCR / TV interlocking operation device capable of controlling on / off between the TV and VCR, recording and reproducing functions, etc. without a separate interlocking operation signal line. It is for doing.

Yet another object of the present invention is to provide a combined VCR and TV actuation device which allows bidirectional control between the TV and VCR.

[0009]

In order to achieve the above object, a TV status reading means for reading the current status of the TV, a reading result of the TV status reading means, and a TV control signal from the VCR are used. And a TV microcomputer that controls VCR and generates a VCR control signal.
A VCR microcomputer that controls a corresponding function by a VCR control signal from the VCR microcomputer and generates a TV control signal, converts the VCR control signal from the TV microcomputer into a caption signal, outputs the caption signal to the VCR microcomputer side, and inputs from the VCR microcomputer side. And a TV caption signal processing means for converting the caption signal into a TV control signal and transmitting the TV control signal to the TV microcomputer, and a caption signal output from the TV caption signal processing means for converting to a VCR control signal and output from the VCR microcomputer. There is provided an interlocking operation device for a VCR and a TV, which comprises a VCR caption signal processing means for converting a TV control signal into a caption signal and transmitting it to the TV caption signal processing means.

[0010]

In the present invention thus constructed, the VCR
The video signal of the VCR processed by the video signal processing unit is VC
It is encoded together with the associated operation control signal by the R caption encoder, and is encoded through the first video signal transmission line to T
It is transmitted to the V caption decoder.

On the contrary, the TV caption decoder is V
The CR video signal and the link operation control signal are separated, the video signal is displayed on the screen, and each function of the TV is controlled by the link operation control signal.

On the contrary, the TV video signal processed by the TV video signal processing unit is encoded together with the link operation control signal by the TV caption encoder and transmitted to the VCR caption decoder through the second video signal transmission line. On the contrary, VCR caption recorder is T
The V video signal and the link operation control signal are separated, the video signal is recorded on a video tape, and each function of the VCR is controlled by the link operation control signal.

The TV caption decoder / encoder and the VCR caption decoder / encoder are controlled by a TV microcomputer and a VCR microcomputer, respectively, and their control operations are read by a TV status reading unit and a VCR status reading unit, respectively. Follow the condition.

[0014]

FIG. 2 is a block diagram of a VCR / TV link operating device according to the present invention.
And the TV interlocking device reads the current state of the TV.
V state reading unit (11), TV state reading unit (11)
A TV microcomputer that controls the corresponding function of the TV and the VCR according to the status signal output from the VCR and the cooperation operation control signal from the VCR, and the TV operation by encoding the cooperation operation control signal output from the TV microcomputer (12). A TV that transmits to the VCR together with the video signal generated in the signal processing unit (13)
A caption encoder (14a) and a TV caption decoder (14b) for detecting the caption signal output from the VCR, decoding the caption signal into a link operation control signal, and transmitting the decoded operation control signal to the TV microcomputer (12).
V (10), a VCR status reading unit (23) for reading the current status of the VCR, a status signal output from the VCR status reading unit (23) and a corresponding operation control signal from the TV, and corresponding functions of the VCR. The VCR microcomputer (22) for controlling the TV and the caption signal output from the TV caption encoder (14a) of the TV (10) are detected and decoded into a coordinated operation control signal, and the VCR microcomputer (2) is detected.
2) VCR caption decoder (21a), which is transmitted to
Then, a VCR caption encoder (21b) which encodes the link operation control signal output from the VCR microcomputer (12) and transmits it to the TV caption decoder (14b) together with the video signal generated in the VCR video signal processing unit (24). ) And a VCR (20).

A first video signal transmission line for transmitting a video signal and a caption signal from the VCR caption encoder (21b) to the TV caption decoder (14b) in order to connect the VCR (20) and the TV (10). (31)
And a second video signal transmission line (32) for transmitting a video signal and a caption signal from the TV caption encoder (14a) to the VCR caption decoder (21a).
And are provided.

The operation and effect of the present invention thus constructed will be described with reference to FIG.

First, when the user selects the reproduction mode of the VCR (20), the VCR state reading unit (23) senses it and transmits it to the VCR microcomputer (22), and the VCR microcomputer (22) reproduces it. The mode status code is transmitted to the VCR caption encoder (21b), and the VCR caption encoder (21b) encodes the playback mode status code into a caption signal and converts it into a video signal received by the VCR video signal processing unit (24). Then, it is output to the first video signal transmission line (31) through a video output terminal (not shown).

TV (10) TV caption recorder
(14b) detects a caption signal from the video signal transmitted to the first video signal transmission line (31) through a video input terminal (not shown), decodes it, and decodes the status code of the VCR. Is transmitted to the TV microcomputer (12).

The TV microcomputer (12) determines whether the VCR is reproduced by the VCR status code transmitted from the TV caption decoder (14b), and the TV status reading unit (11) inputs the TV. The on / off and mode switching signals are judged to turn on the TV and switch to the video mode so that the VCR can be viewed.

FIG. 3 shows the VCR controlled by the TV.
FIG. 2 shows an example of recording on the
From the TV microcomputer (12) to the TV caption encoder (1
When the recording command data is transmitted to 4a), the TV caption encoder (14a) encodes the recording command data into a caption signal, and the TV video signal processing unit (13).
And is transmitted to the VCR through the second video signal transmission line 32 connected to the TV video output terminal (not shown).

VCR caption recorder (21a)
Detects a caption signal in the video signal of the second video signal transmission line (32), decodes it and outputs V
It is transmitted to the CR microcomputer (22). When the output signal of the VCR caption decoder (21a) is recording command data, the VCR microcomputer (22) reads the VCR status reading unit (2).
The VCR is controlled in the recording state by judging the state signal of 3).

Here, the recording command data is not used in the existing caption signal, but the code value is used.

[0023]

As described above, according to the present invention, V
Since the CR controls the TV and the VCR controls the VCR, the caption control data is transmitted through one video signal transmission line, so that the VCR controls the TV.
It is possible to control functions such as on / off of VCR, reproduction, and recording by the TV as well as controlling the VCR, and there is an effect that such cooperation operation control of the TV and VCR makes it convenient to use.

It should be noted that a TV with a built-in modem provides a function by which the TV can control the VCR so that the user can record the information coming in through the telephone line in the VCR while the user is away.

[Brief description of drawings]

FIG. 1 is a connection diagram of a conventional VCR and TV link operating device.

FIG. 2 is a block diagram of a VCR / TV link operating device according to the present invention.

FIG. 3 is an operation flowchart for the constituent device of FIG.

[Explanation of symbols]

 1, 20: VCR 2, 10: TV 3: Audio line 4: Video line 5: Coordinated operation control line 11: TV status reading unit 12: TV microcomputer 13: TV video signal processing unit 14a: TV caption encoder 14b: TV Caption decoder 21a: VCR Caption decoder 21b: VCR caption encoder 22: VCR microcomputer 23: VCR status reading unit 24: VCR video signal processing unit 31: First video signal transmission line 32: Second video signal transmission line

Claims (3)

[Claims] 1. A TV status reading means for reading a current status of a TV, a reading result of the TV status reading means, and a VCR.
Control the corresponding function by the TV control signal from
A TV microcomputer that generates a CR control signal, a VCR microcomputer that controls the corresponding function by the VCR control signal from the TV and that generates a TV control signal, and a VCR microcomputer that converts the VCR control signal from the TV microcomputer into a caption signal. Output to the side and VC
A TV caption signal processing means for converting a caption signal input from the R microcomputer side into a TV control signal and transmitting the TV control signal to the TV microcomputer, and a caption signal output from the TV caption signal processing means for converting to a VCR control signal. VCR
VCR composed of VCR caption signal processing means for converting the TV control signal output from the microcomputer into a caption signal and transmitting it to the TV caption signal processing means.
And TV interlocking device. 2. The TV caption signal processing means,
A TV caption decoder that decodes the caption signal output from the VCR caption signal processing means and transmits it to the TV microcomputer, and a VCR control signal output from the TV microcomputer is encoded into a caption signal and placed on a video signal. 2. The VCR and T according to claim 1, wherein the VCR and the TCR are composed of a TV caption encoder for transmitting to the VCR side.
V interlocking device. 3. The VCR caption signal processing means decodes the caption signal input from the TV caption signal processing means and transmits it to the VCR microcomputer, and a TV output from the VCR microcomputer. 2. The VCR / TV interlocking operation device according to claim 1, further comprising a VCR caption encoder which encodes the control signal into a caption signal, transmits the control signal on a video signal, and transmits the video signal to the TV caption signal processing means.