KR19990031966A - Automatic operation control method of TV and video cassette recorder - Google Patents

Abstract

The present invention relates to an operation control method of a television and a video cassette recorder for controlling each operation through serial data processing between the television and a video cassette recorder.

That is, the present invention transmits serial data about the video cassette recorder to the television when the video cassette recorder is in the power-on state and playback mode, and displays the video signal provided from the video cassette recorder on the screen when the television is switched on to the video channel. Also, if the television is powered on and set to a video channel, it will send serial data about it to the video cassette recorder, and if the video cassette recorder is powered on and a signal for the play mode action key is provided, whether or not a tape is inserted in the deck This function has the effect of avoiding the troublesome process of watching VCR by detecting the function and executing the play mode when the tape in the deck is inserted and displaying the message that the tape is not inserted if the tape in the deck is not inserted. .

Description

How to control the automatic operation of TV and video cassette recorders

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation control method of a television (hereinafter referred to as TV) and a video cassette recorder (hereinafter referred to as a VCR), in particular by serial data communication between the TV and the VCR. The present invention relates to an automatic operation control method of a TV and a VCR that automatically controls each operation.

As is well known, most households have video equipment such as TVs and VCRs. The TV receives and processes the broadcast signal transmitted from the broadcasting station, displays it on the screen through a monitor, and the video cassette recorder applies a broadcast signal received through the antenna from a tuner that tunes the broadcast signal received through the antenna to a desired channel. The recording function of recording a composite video signal on a magnetic tape and the playback function of reproducing the composite video signal recorded on the magnetic tape and displaying the same on a monitor of a television allow viewers to watch a program they want to watch at any time.

In TVs and VCRs having the functions described above, in order to watch a desired program through the TV, the power is supplied to the VCR, a video tape is inserted into the deck, and the channel of the TV is set as a video channel. After that, they had to go through cumbersome procedures such as recreating the VCR.

On the other hand, serial data communication is a method of coding a specific state and sending the coded data continuously for a predetermined time to be processed. Specifically, the serial data communication is made into a code state for mutual recognition of a specific state. When a specific state is reached, the corresponding codes are transmitted sequentially, and the counterpart checks the status by comparing the sequentially input codes with the promised codes.

The present invention has been made as described above, an object of the present invention is to automatically operate the TV and VCR without going through a cumbersome procedure by automatically controlling each operation by serial data communication between the TV and the VCR. The present invention provides an automatic operation control method for a TV and a VCR.

In order to achieve the above object, the present invention provides an automatic operation control method for a TV and a VCR that performs serial data communication between a TV and a VCR to automatically control each operation, wherein the VCR is powered on and played back. A first step of serially processing data about a reproduction mode and transmitting the serial data to the TV when driving in a mode; The second step of detecting the power-on state of the TV; Changing to a video channel when the TV is powered on; And a fourth step of supplying power and switching to a video channel if the TV is not powered on.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a block diagram showing a configuration of hardware to which the present invention is applied;

2 is a flowchart illustrating a process for automatically controlling operations of a television and a video cassette recorder by performing serial communication between the television and a video cassette recorder according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: TV 100: video cassette recorder

11, 110: key input unit 12, 130: micom

13: tuner 14, 120: data transceiver

140: deck portion 150: OSD unit

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

1 is a block diagram showing a hardware configuration to which the present invention is applied, and serial communication processing is performed between the TV 10 and the VCR 100.

At this time, the TV 10 provides a key input unit 11 for providing a key signal for controlling the operation of the TV, an operation control signal corresponding to the key signal provided from the key input unit 11, The tuner 13 for tuning the video channel depending on the channel tuning control signal provided by the microcomputer 12 and the channel tuning control signal provided by the microcomputer 12, which provides a channel tuning control signal for changing to a video channel and provides serial data on the power-on state. ), And a data transmission / reception unit 14 for transmitting serial data provided from the microcomputer 12 to the VCR 10 and receiving the serial data provided from the VCR 100 and providing the serial data to the microcomputer 12.

In addition, the VCR 100 provides a key input unit 110 for providing a key signal for controlling the operation of the VCR, an operation control signal corresponding to the key signal provided from the key input unit 110, and is in a power-on state and a playback mode. When driven by the microcomputer 130 that provides serial data for the playback mode, the serial data provided by the microcomputer 130 to the TV 10 and the serial data provided by the TV 10 to the microcomputer 130 is provided. OSD (On Screen Display) for displaying the OSD character corresponding to the OSD character display control signal provided by the deck unit 140, the microcomputer 130 to drive under the control of the data transmission and reception unit 120, the microcomputer 130 It is composed of a portion (150).

FIG. 2 is a flowchart illustrating a process of controlling each operation between the TV and the VCR by serial data processing according to the present invention, which will be described in detail with reference to the block diagram shown in FIG.

2A is a flowchart illustrating a process of controlling the operation of the TV 10 by serial data provided by the VCR 100, and FIG. 2B illustrates an operation of the VCR 100 by serial data provided by the TV 10. A flow chart showing the process of controlling.

First, in step 200a, the VCR 100 determines whether power is supplied to the VCR, that is, whether the power is on. As a result of the determination, if the power is on, the process proceeds to step 201a to determine whether the driving is in the regeneration mode.

If it is determined that the driving mode is in the playback mode, the data transmission / reception unit 120 transmits serial data about the playback mode to the TV 10 so that the TV may know that the VCR is driving in the playback mode. To control.

Accordingly, the data transmission / reception unit 120 provides serial data for the reproduction mode to the data transmission / reception unit 14 of the TV 10, and the data transmission / reception unit 14 of the TV 10 transmits / receives data of the VCR 100. The serial data regarding the reproduction mode provided by the unit 120 is received and provided to the microcomputer 12.

At this time, the microcomputer 12 of the TV 10 determines whether the power is on in step 203a, and if the power is on, the microcomputer 12 proceeds to step 204a to transmit a channel tuning control signal for tuning to the video channel to the tuner 13. The tuner 13 tunes the video channel under the control of the microcomputer 12.

In addition, if the microcomputer 12 of the TV 10 is not in the power-on state in step 203a, the control proceeds to step 205a to supply power, and the process proceeds to step 204a to perform the above-described process.

Meanwhile, an operation control process of the VCR 100 by serial data provided from the TV 10 is as follows.

The microcomputer 12 of the TV 10 determines whether the power is on in step 250b. As a result of the determination, if the power is on, the operation proceeds to step 251b to determine whether the current channel is a video channel.

As a result of the determination, if the currently detected channel is a video channel, the microcomputer 12 proceeds to step 252b to provide serial data for the power-on state of the TV to the data transmission / reception unit 14, and the data transmission / reception unit 14 Serial data for the power-on state provided in (12) is provided to the data transceiver 120 of the VCR (100).

Therefore, the data transmission / reception unit 120 of the VCR 100 provides the microcomputer 130 with serial data on the power-on state provided from the TV 10.

At this time, the microcomputer 130 of the VCR 100 determines whether the power is on in step 253b and proceeds to step 254b if the power is on, and proceeds to step 255b if not.

That is, in step 254b, the microcomputer 130 determines whether a key signal for driving in the playback mode is provided from the key input unit 110. When a signal for the playback mode driving key is provided, the microcomputer 130 proceeds to step 256b. Detects whether is inserted.

On the other hand, the microcomputer 130 proceeds to step 255b to supply power to the VCR 100 and proceeds to step 256b.

As a result of detecting whether the tape in the deck is inserted in step 256b (step 257b), if the tape in the deck is inserted, the method proceeds to step 258b to control the deck unit 140 to perform the playback mode, and the deck unit 140 Performs the playback mode according to the control of the microcomputer 130.

If the tape in the deck is not inserted in step 257b, the microcomputer 130 proceeds to step 259b to display an OSD display control signal for displaying a message indicating that the tape is not inserted in the deck. 150).

Accordingly, the OSD unit 150 outputs an OSD text font corresponding to the OSD display control signal provided by the microcomputer 130.

As described above, the automatic operation control method of the TV and the VCR according to the present invention has the effect of not having to go through the cumbersome procedure of watching a VCR by automatically controlling the operation through serial data processing between the TV and the VCR. have.

While the invention has been shown and described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various modifications, changes and omissions can be made without departing from the spirit and scope of the invention.

Claims (2)

In the automatic operation control method of the television and video cassette recorder to perform serial data communication between the television and the video cassette recorder to automatically control each operation, The video cassette recorder is a first step of serially processing data for a playback mode and transmitting it to the television when the power supply is turned on and driving in a playback mode; The television comprises a second step of detecting a power-on state of the television; A third step of switching to a video channel when the television is powered on; And a fourth step of supplying power and switching to a video channel if the television is not in a power-on state. 2. The television set of claim 1, wherein the television comprises: a first step of detecting a channel condition with the power on; A second step of serially processing data on a power-on state of the television and transmitting the serial data to the video cassette recorder if the channel of the television detected in the first step is a video channel; The video cassette recorder further comprises: detecting a power state; A fourth step of determining whether the video cassette recorder is provided with a key signal for driving in a playback mode when the video cassette recorder is in a power-on state; A fifth step of detecting whether a tape is inserted in the deck when a video signal is provided to drive the video cassette recorder; A sixth step of supplying power to the video cassette recorder and performing the fifth step if the video cassette recorder is not in a power-on state; The video cassette recorder includes a seventh step of performing a playback mode if a tape is inserted into the deck as a result of the fifth step, and displaying a message indicating that no tape is inserted if the tape is not inserted into the deck. Automatic control method of the television and video cassette recorder, characterized in that the.