KR19980082881A - How to Power Off the Video Cassette Recorder Automatically - Google Patents

Abstract

The present invention relates to a method of setting a playback time of a video cassette recorder, and more particularly, to a method of automatically powering off a video cassette recorder when the power supply of the video cassette recorder is automatically stopped when the driving end time of the preset playback mode is reached.

To this end, the present invention provides a method of automatically powering off a video cassette recorder connected to a serial port for transmitting serial data to a television. When the video cassette recorder is in a playback mode, a key signal for setting an end time of a playback mode is provided. Determining a reproduction mode end time setting key signal providing decision step; A time information input determination step of determining whether time information on an end time of the play mode is input when a key signal for setting the end time of the play mode is provided in the play mode end time setting key signal provision determination step; A time counting step of counting a time from a current time to a play mode end time when time information on the end time of the play mode is input in the time information input determining step; And a power off step of turning off the power supplied to the video cassette recorder and providing serial data of the power off signal of the television to the serial port if the time counted in the time count step corresponds to the play mode end time information. This has the effect of turning off the power automatically.

Description

How to Power Off the Video Cassette Recorder Automatically

The present invention relates to a method of setting a playback time of a video cassette recorder, and more particularly, to a method of automatically powering off a video cassette recorder when the power supply of the video cassette recorder is automatically stopped when the driving end time of the preset playback mode is reached.

In general, a video cassette recorder has a recording function for recording a composite video signal applied from a tuner tuned into a desired channel to a broadcast signal received through an antenna, and a composite video signal recorded on the magnetic tape to reproduce a television. It has a playback function to display on the monitor.

In addition, the video cassette recorder has a reserved recording function, which is a very advantageous function of automatically recording a broadcast program desired by the user in the absence of the user, so that the user can play and watch it at a desired time. These types of scheduled recording include scheduled recording once to perform scheduled recording at a specific time desired, daily scheduled recording to perform daily recording if you set a schedule for a program that is broadcasted at the same time every day. There are weekly scheduled recordings that perform scheduled recording on the day of the week.

At this time, the scheduled recording process of the video cassette recorder is broadcasted according to the schedule information input by the user (for example, the broadcast date, start time, end time, broadcast channel of the desired program, recording speed, etc.) of the desired program. In order to record a program in advance, the normal recording procedure is to first press the function selection button and the scheduled recording button in sequence, input the number of channels to be recorded, and then the recording date and recording start time and Scheduled recording was performed by setting the recording end time, determining the recording speed, inserting a tape to be recorded in the deck, and then turning off the power.

Therefore, if the user falls asleep without turning off the power of the video cassette recorder while watching a program recorded on the magnetic tape through the reservation recording process as described above, the video cassette recorder continues to play until the power is turned off. There was a problem that power is consumed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to stop power supply by automatically stopping power supply when a video cassette recorder reaches a playback end time set by a user for driving in a playback mode. The present invention provides a method for setting a playback end time of a video cassette recorder to prevent the same.

A feature of the present invention for achieving the above object is a method of automatically powering off a video cassette recorder having a serial port for transmitting serial data to a television. A reproduction mode end time setting key signal provision determination step of determining whether a key signal for setting is provided; A time information input determination step of determining whether time information on an end time of the play mode is input when a key signal for setting the end time of the play mode is provided in the play mode end time setting key signal provision determination step; A time counting step of counting a time from a current time to the end of the play mode when time information on the end time of the play mode is input in the time information input determining step; And turning off the power supplied to the video cassette recorder if the time counted in the time counting step corresponds to the play mode end time information, and providing a serial data of a power off signal of the television to the serial port. Steps.

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 an apparatus for automatically powering off a video cassette recorder according to a preferred embodiment of the present invention.

2 is a flowchart illustrating a method of automatically powering off a video cassette recorder according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: TV100: video cassette recorder

110: key input unit 120: micom

130: deck portion 140: power supply

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

FIG. 1 is a block diagram showing the configuration of a device for automatically turning off a video cassette recorder. The video cassette recorder 110 which receives a broadcast signal, records it on a magnetic tape, reproduces the recorded signal, and displays the recorded signal on a screen is pressed by a user. A key input unit 110 providing a predetermined key signal, a regeneration control signal corresponding to the key signal provided from the key input unit 110 and a reproducing provided by the microcomputer 120 and the microcomputer 120 providing a power supply switching signal. A deck unit 130 for reproducing the signal recorded on the magnetic tape in accordance with the control signal, and a power supply unit 140 for selectively supplying power in accordance with the power supply switching signal provided from the microcomputer 120.

A detailed description of the operation of the apparatus for automatically turning off the power of the video cassette recorder according to the present invention configured as described above is as follows.

Reference numeral 10 denotes a television that receives a broadcast signal and displays it on a screen. A serial port is connected between the television 10 and the video cassette recorder 100 to exchange serial data.

The key input unit 110 is generally composed of key metrics to provide a predetermined key signal pressed by the user to the microcomputer 120. The key input unit 110 is for inputting a play key, a play end time setting key according to the present invention, and time information. A plurality of keys such as a numeric key are provided to provide the pressed key signal to the microcomputer 120.

At this time, the microcomputer 120 provides a control signal corresponding to the key signal provided from the key input unit 110. When the signal for the playback key is provided from the key input unit 110, the deck unit 130 is operated in the play mode. When the control signal for driving the signal is provided, and the signal for the playback end time setting key and the numeric key for the time information is provided from the key input unit 110, the time is counted using an internal timer (not shown), If the time corresponds to the time information, the power supply switching signal is provided to the power supply 140 and the television 10 connected to the serial port as described above.

That is, when the deck unit 130 is in the play mode and the play input end time setting key and the time information, that is, the time information on the play end time are provided by the key input unit 110, the microcomputer 120 may operate an internal timer (not shown). Counts up to a time corresponding to the time information on the reproduction end time provided by the key input unit 110 at the current time, and if the counted time is the same as the information on the reproduction end time, the power supply switching signal is transmitted to the power supply unit 140. The television 10 is provided.

For example, if the current time is 9 pm and the time information on the playback end time provided by the key input unit 110 is time information for 1 hour 30 minutes, the current time, that is, 9 hours to 1 hour 30 minutes, is counted. When the counted time is 10:30 pm, the power supply switching signal is provided to the power supply unit 140 and the television 10 to turn off the power.

At this time, the power supply unit 140 switches off the power currently supplied according to the power supply switching signal provided from the microcomputer 120 to turn off the power supplied to the video cassette recorder 100, and the television 10 The power supply is cut off by the serial data supplied from the video cassette recorder 100.

Meanwhile, the deck unit 130 is driven in the regeneration mode according to the control signal supplied from the microcomputer 120 to reproduce the reproducing signal recorded on the magnetic tape until the power is supplied.

FIG. 2 is a flowchart illustrating a method for automatically powering off a video cassette recorder according to the present invention, which will be described in detail with reference to the block diagram shown in FIG.

First, if the deck unit 130 is in the play mode in step 200, the microcomputer 120 determines whether the signal for the play end time setting key is provided from the key input unit 110.

As a result of the determination, when a signal for the reproduction end time setting key is provided from the key input unit 110, the microcomputer 120 proceeds to step 220 and determines whether time information regarding the reproduction end time is provided from the key input unit 110. .

As a result of the determination, when time information on the reproduction end time is provided from the key input unit 110, the microcomputer 120 proceeds to step 230 and counts the time using an internal timer (not shown). That is, the microcomputer 120 counts time information on the reproduction end time provided in operation 220 from the current time using an internal timer (not shown) and proceeds to operation 240.

Accordingly, if the time of the microcomputer 120 proceeds to step 240 and the time counted in step 230 is the same as the time information on the reproduction end time provided in step 220, the microcomputer 120 proceeds to step 250 to supply the power supply switching signal to the power supply unit ( 140 and television 10.

At this time, the power supply unit 140 and the television 10 turn off the power by the power supply switching signal provided from the microcomputer 120.

As described above, the automatic power-off method of the video cassette recorder according to the present invention is a time for the playback end time setting key and playback end time by a user in a video cassette recorder having a serial port for transmitting serial data to a television. When the information is provided, if the time information for the playback end time provided from the current time is counted and the counted time is the same as the time information for the playback end time, the power supply switching signal is provided to the television as the power supply terminal of the video cassette recorder and serial data. Thus, there is an effect of automatically turning off the power supply and preventing power consumption.

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 (1)

A method of automatically powering off a video cassette recorder with a serial port for transmitting serial data to a television, Determining whether to provide a play mode end time setting key signal to determine whether a key signal for setting an end time of the play mode is provided when the video cassette recorder is in a play mode; A time information input determination step of determining whether time information on an end time of the play mode is input when a key signal for setting the end time of the play mode is provided in the play mode end time setting key signal provision determination step; A time counting step of counting a time from a current time to the end of the play mode when time information on the end time of the play mode is input in the time information input determining step; And A power off step of turning off the power supplied to the video cassette recorder if the time counted in the time counting step corresponds to the play mode end time information, and providing serial data of a power off signal of the television to the serial port; Auto off method of video cassette recorder comprising a.