JP2791461B2 - VCR / TV Linked Actuator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for operating a VCR and a TV, and more particularly, a control signal line and a video signal line for a VCR and a caption system are separated from each other. The present invention relates to an apparatus for linking a VCR and a TV, which can be linked only with an existing video signal line, instead of having to be provided with a connecting terminal.

[0002]

2. Description of the Related Art FIG. 1 is a connection diagram of a conventional general VCR and TV, and a conventional VCR / TV linkage operating device transmits sound in VCR (1) and TV (2). It comprises an audio line (3), a video line (4) for transmitting an image, and a link operation control line (5) for transmitting a link operation signal.

[0003] The conventional VCR and TV constructed as described above
The operation of the coordination device will be described with reference to FIG. 1 of the accompanying drawings.

First, when a user puts a video tape into a playback device and plays it, an audio signal is transmitted to a TV through an audio line (3), and a video signal is transmitted through a video line (4). A linking operation control signal for controlling the linking operation is transmitted through a linking control line (5).

According to the control signal transmitted through the link operation control line (5), the TV detects whether the VCR is playing or not, and performs the link operation between the VCR and the TV (for example, TV / VC).
R mode switching).

However, such a conventional VCR / TV linkage operating device requires a separate linkage operation control line (5), so that a separate connection terminal must be installed on the VCR and TV. This is a one-way control system in which a link operation with a TV is controlled by a control signal of a VCR.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a VCR / TV coordination device which can control on / off between TV and VCR, recording and playback functions, etc. without a separate coordination signal line. It is for doing.

It is still another object of the present invention to provide a VCR / TV cooperative actuator which enables bidirectional control between the TV and the VCR.

[0009]

In order to achieve the above object, a VCR control signal generated by a TV is transmitted to a VCR.
And transmit the TV control signal generated by the VCR to T
V to control VCR and TV interaction system
A coordinating device for a VCR and a TV , comprising: a TV state reading means for reading a current state of the TV; a reading result of the TV state reading means and a TV control signal from the VCR for controlling a corresponding function and a VCR control signal A TV control unit that generates the current, and a V that reads the current state of the VCR
CR state reading means, and reading of the VCR state
V that generates a TV control signal and controls the corresponding function according to the read result of the means and the VCR control signal from the TV.
A CR control unit, and a VCR control signal output from the TV control unit is encoded into a caption signal to generate an image.
TV caption encoding to be transmitted to VCR side on signal
And decoding the caption signal input from the TV caption encoder and the
VCR caption decoder for transmission to VCR control unit
And the TV control signal output from the VCR control unit.
Encode to caption signal and convert to video signal
VCR caption encoder to transmit to TV
Input from the VCR caption encoder
Decoding the caption signal
An apparatus for linking a VCR and a TV, comprising a TV caption decoder for transmitting to a control unit .

[0010]

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

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

Conversely, the TV video signal processed by the TV video signal processing unit is encoded together with the coordination operation control signal by the TV caption encoder and transmitted to the VCR caption decoder via the second video signal transmission line. The VCR caption decoder, on the contrary,
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 VCR caption decoder / encoder are controlled by a TV control unit and a VCR control unit , respectively, and the control operation is performed by a TV state reading unit and a VCR state reading unit, respectively. Follow the state given.

[0014]

FIG. 2 is a block diagram showing an apparatus for linking a VCR and a TV according to the present invention.
And the TV's coordinating device read the current state of the TV.
V state reading unit (11), TV state reading unit (11)
A TV microcomputer (12) for controlling a corresponding function of the TV and the VCR according to a status signal output from the VCR and a link operation control signal from the VCR, and encoding a link operation control signal output from the TV microcomputer (12) to display a TV image. TV transmitted to VCR together with video signal generated by signal processing unit (13)
A caption encoder (14a), and a TV caption decoder (14b) which detects a caption signal output from the VCR, decodes the caption signal into an associated operation control signal, and transmits the 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 an associated function of the VCR based on a linked operation control signal from the TV. The VCR microcomputer (22) for controlling the TV, the caption signal output from the TV caption encoder (14a) of the TV (10) is detected and decoded into a cooperative operation control signal, and the VCR microcomputer (2) is detected.
2) VCR caption decoder (21a) to be transmitted to
Then, a VCR caption encoder (21b) which encodes the cooperative operation control signal output from the VCR microcomputer (12) and transmits it to the TV caption decoder (14b) together with the video signal generated by the VCR video signal processor (24). ) 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) to connect the VCR (20) and the TV (10). (31)
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 will be described with reference to FIG.

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

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

The TV microcomputer (12) determines whether or not to reproduce the VCR based on the status code of the VCR transmitted from the TV caption decoder (14b). The TV microcomputer reads the TV status inputted by the TV status reading section (11). The TV is turned on by determining the ON / OFF and mode switching signals, and the mode is switched to the video mode so that the VCR can be viewed.

FIG. 3 shows a VCR controlled by a TV.
FIG. 4 shows an embodiment for causing a video to be recorded by
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 encodes the TV command signal into a TV video signal processing unit (13).
The video signal is transmitted to a VCR through a second video signal transmission line 32 connected to a TV video output terminal (not shown).

VCR caption decoder (21a)
Detects a caption signal among the video signals of the second video signal transmission line (32), decodes it, and
It is transmitted to the CR microcomputer (22). When the output signal of the VCR caption decoder (21a) is the recording command data, the VCR microcomputer (22) reads the VCR state by the 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 uses a code value.

[0023]

As described above, according to the present invention, V
Since caption control data is transmitted through one video signal transmission line so as to control TV by CR and VCR by TV, TV by TV
In addition to controlling the TV, the TV can control functions such as ON / OFF of the VCR, reproduction, recording, and the like, and there is an effect that the use of the TV and the VCR can be conveniently used by controlling the linked operation of the TV and the VCR. In addition, TV control by VCR and
The control of VCR by TV requires the video signal transmission line
Control operation of the TV and the VCR.
Separate link operation control for transmitting the link operation control signal
A separate connection terminal is provided for the VCR and TV.
Need not be placed.

It is to be noted that the TV with a built-in modem has a function of controlling the VCR so that the TV can control the VCR in order to record the information coming in through the telephone line while the user is away.

[Brief description of the drawings]

FIG. 1 is a connection diagram of a conventional VCR / TV linked operation device.

FIG. 2 is a block diagram of a linked operation device of a VCR and a TV according to the present invention;

FIG. 3 is an operation flowchart for the configuration device of FIG. 2;

[Explanation of symbols]

 1, 20: VCR 2, 10: TV 3: Audio line 4: Video line 5: Link operation control line 11: TV state 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 state reading unit 24: VCR video signal processing unit 31: first video signal transmission line 32: second video signal transmission line

Claims (3)

(57) [Claims] 1. A VCR control signal generated by a TV is transmitted to a VC
R and the TV control signal generated by the VCR.
Signal to the TV to control the mutual system between the VCR and the TV.
A TV / TV coordinating operation device , comprising: a TV status reading means for reading a current status of a TV;
Reading result of state reading means and T from VCR
A TV control unit that controls the corresponding function by the V control signal and generates a VCR control signal, and reads the current state of the VCR
Reading means for reading the VCR state, and reading the VCR state
A VCR control unit for generating a TV control signal to control the corresponding function by VCR control signal from the read result and TV viewing take means, V outputted from the TV controller
The CR control signal encodes the caption signal
TV caption that is transmitted to the VCR side on video signals
And down encoder, a caption signal inputted from said TV caption encoder <br/> and decoding
VCR caption description transmitted to the VCR control unit
Coder and TV control output from the VCR control unit
Encode the signal into a caption signal and
VCR caption encoder to be transmitted to TV side
Input from the VCR caption encoder.
Decoding the input caption signal
An apparatus for linking a VCR and a TV, comprising a TV caption decoder for transmitting to a TV control unit . 2. The TV caption signal processing means,
A TV caption decoder which decodes the caption signal output from the VCR caption signal processing means and transmits the caption signal to the TV microcomputer; and encodes the VCR control signal output from the TV microcomputer into a caption signal and places it on a video signal. 2. The VCR according to claim 1, further comprising a TV caption encoder for transmitting to the VCR side.
V linkage actuating device. 3. The VCR caption signal processing means includes: a VCR caption decoder for decoding a caption signal input from the TV caption signal processing means and transmitting the caption signal to the VCR microcomputer; and a TV output from the VCR microcomputer. 2. The apparatus according to claim 1, further comprising a VCR caption encoder for encoding a control signal into a caption signal, transmitting the video signal on a video signal, and transmitting the video signal to a TV caption signal processing unit.