KR100199869B1 - Apparatus and method for controlling power supply of video cassette recorder - Google Patents

Abstract

The present invention relates to a power supply control apparatus and method for instant recording of a video cassette recorder which can stop an instant recording function and turn off the power of a corresponding VCR when a predetermined time elapses from a user when performing an instant recording on a specific channel. In the video tape recorder which performs the playback operation and the recording operation on the video tape T mounted in the deck based on the function setting signal input from the outside, the instant recording mode is set and the recording channel and the recording time ( T1) is input, and the recording channel is tuned by the tuner 18 so as to perform a recording operation for the recording channel, and at the same time setting the recording time T1 in the timer 30, the timer. (30) counting the recording time (T) to determine whether the counted recording time (T) passes the recording time (T1), the recording time (T) Stop the ongoing recording operation after the set recording time T1 has elapsed, and the power supply control unit 32 controls the power supply unit based on the signal from the timer 30 and the signal from the controller 12. And applying a power cutoff signal to 23, and turning off the power of the video cassette recorder based on the power cutoff signal.

Description

Power control device and method for instant recording of video cassette recorder

The present invention relates to a power supply control apparatus and method for instant recording of a video cassette recorder, and more particularly, to a video cassette recorder to turn off the power of the video cassette recorder when a predetermined time set by the user during instant recording has elapsed. The present invention relates to a power supply control apparatus and method for instant recording.

Currently, a video cassette recorder (hereinafter referred to as VCR) or a video tape recorder (hereinafter referred to as VTR) supplied to a general consumer is a function set by a user for a video tape inserted into a video tape storing unit, for example, a PLAY or Fast forwarding (F / F), rewinding (REW), recording (REC), etc. are typically performed. As the playback mode is set, the video / audio signal read and reproduced from the videotape is output to the signal output terminal. It is input through an external signal input terminal of a television and is reproduced and output through the television.

The recording functions generally equipped with these VCRs include the instant recording function that starts the recording function from the time when the user sets the recording function and the recording time when the user sets the recording schedule time. There is a reservation recording function that performs a recording function from the time point when time is reached.

In the above-described VCR, if the user sets the instant recording function for a specific channel, the VCR performs channel tuning through the tuner configured therein, and then records the broadcast signal for the channel tuned on the videotape. The user can reproduce and watch the broadcast signal for the channel at any time.

On the other hand, in the case of the VCR, if the user sets the instant recording mode, the recording function for the broadcast signal of a specific channel is performed. For example, the immediate recording function is terminated only when the STOP key is operated.

Therefore, if the user forgets the time to end the instant recording and leaves the instant recording for a long time, the broadcast signal of a specific channel is recorded until the recordable time of the corresponding video tape (that is, the end of the video tape). In this case, since the other broadcast program is recorded unnecessarily after the specific broadcast program that the user wants to record, power consumption is caused as well, and as a result, the VCR performs a meaningless recording operation.

Accordingly, the present invention has been made in view of the above circumstances, and the video cassette recorder can stop the instant recording function and turn off the power of the corresponding VCR when a predetermined time elapses from the user when performing instant recording on a specific channel. The purpose of the present invention is to provide a power supply control device and method for instant recording.

According to an apparatus according to an embodiment of the present invention for achieving the above object, a tape driving mechanism for driving control of the driving state of the video tape (T), and the video / audio signal recorded on the video tape (T) A signal recording / reading unit for reading a signal or recording a predetermined video / audio signal on the video tape T, a signal reproducing processor for processing a video / audio signal from the signal recording / reading unit into a reproducible signal; A video cassette recorder comprising a signal recording processing unit for processing a broadcast signal of a specific channel tuned by a tuner as a recordable signal, wherein the control signal inputs a recording channel and a recording time (T1) while setting an immediate recording mode. Based on the input unit, the recording channel and the recording time (T1) input from the control signal input unit controls to perform the instant recording function and the following timer A controller for setting a recording time, a timer for outputting a predetermined level signal when the ongoing recording time under the control of the controller reaches a set recording time T1, and the recording based on the level signal applied from the controller and the timer. When the time T1 elapses, a power supply control apparatus is provided for instant recording of a video cassette recorder including a power supply control circuit for controlling the power supply unit to turn off the power of the video cassette recorder.

According to a method according to an embodiment of the present invention for realizing the above object, a video tape for performing a playback operation and recording operation for the video tape (T) mounted in the deck based on a function setting signal input from the outside In the recorder, an instant recording mode is set, and a recording channel and a recording time (T1) are input, and the recording channel is tuned by a tuner so that a recording operation for the recording channel is performed and the recording is performed on a timer. Setting a time T1, counting the recording time T to determine whether the counted recording time T passes the recording time T1, and setting the recording time T Stopping a recording operation in progress when the recorded recording time T1 has elapsed, and the power supply control circuit executes an operation based on a signal from the timer and a signal from the controller. A power supply control method is provided for instant recording of a video cassette recorder, comprising: applying a power cutoff signal to a raw part; and turning off the power of the video cassette recorder based on the power cutoff signal.

According to the present invention having the above-described configuration and steps, when the user performs the instant recording, when the predetermined time inputted with the recording channel elapses, the instant recording function is automatically stopped as well as the power of the corresponding VCR is turned off.

1 is a block diagram of a power supply control apparatus for instant recording of a video cassette recorder according to an embodiment of the present invention;

FIG. 2 is a diagram showing an example of a circuit configuration of the power control device shown in FIG. 2;

3 is a flowchart illustrating a power control method for instant recording of a video cassette recorder according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: control signal input unit, 12: control unit,

13: tape drive mechanism, 14: signal recording / reading,

15: mode switch unit, 17: signal reproduction processing unit,

18: tuner, 19: video / audio IF processing unit,

20: signal recording processing section, 21: display driving section,

22: display portion, 23: power supply portion,

24: data storage, 31: tape end detection,

32: power supply control circuit, 33: NAND gate.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a power supply control apparatus for instant recording of a video cassette recorder according to an embodiment of the present invention. In FIG. 10, reference numeral 10 denotes various types of functions of various kinds of functions applied to video tape playback. Function (e.g., 'PLAY' or 'STOP', 'REW', 'F / F' 'REC', PAUSE, '' EJECT) ', etc.) is a control signal input unit composed of a remote controller or a control panel installed on the front of the corresponding VCR for setting a control function by inputting a key signal corresponding to the control signal input unit 10. Is composed of a time setting key for inputting an instant recording execution time and a channel setting key for inputting a recording channel.

Further, reference numeral 12 denotes a controller for performing a control operation according to a recording / playback function for the videotape T in response to the control signal input from the control signal input unit 10. In the present invention, the control unit 12 When the recording channel and the recording time are input in the state in which the instantaneous recording mode is set by the control signal input unit 10, the recording operation is stopped while the corresponding recording time elapses while the corresponding recording time is elapsed. Control the entire device so that the power is off.

Reference numeral 13 denotes a tape driving mechanism for driving control of the state of the video tape T inserted into the video tape storing unit (not shown) under the control of the control unit 12, and 14 denotes a plurality of heads HEAD. Video / audio from the signal recording processing unit 20 installed under the control of the control unit 12 and reading the video / audio signal recorded on the video tape T or applied through the mode switch unit 15 to be described later. A signal recording / reading unit for recording a signal on the video tape T, and 15 denotes a video / audio signal read out from the video tape T under the control of the control unit 12, or a signal recording processing unit 20 to be described later. A mode switch unit for switching the processing path for the video / audio signal from the.

Also, reference numeral 17 denotes a pre-amplified video / audio signal applied from the mode switch unit 15 and then modulated and processed into a reproducible signal so that the corresponding video / audio signal is reproduced and output through a signal output terminal (not shown). A signal reproducing processor for inputting to an apparatus (e.g., a television).

Further, reference numeral 18 is a tuner for tuning a specific channel among broadcast signals received through the antenna based on the tuning voltage VT applied from the controller 12, and 19 is a tuner for outputting the broadcast signal output from the tuner 18. An IF amplified and then an image / audio IF processor for detecting a video signal and an audio signal from the IF-amplified broadcast signal, and 20 is capable of recording and amplifying the video / audio signal output from the video / audio IF processor 19. A signal recording processing unit for processing into a signal.

In FIG. 1, reference numeral 21 denotes a display driver for driving the display unit 22 formed of a fluorescent panel or an LCD panel so that a processing state of the video tape T is displayed through the display unit 22. A power supply unit for supplying power to the entire apparatus under the control of the control unit 12 and the power control circuit 32 to be described later, 24 is the data according to the state setting input by the control signal input unit 10 (for example, reservation recording) Time reservation recording start time / reservation recording end time / information about a recording channel), and a data storage unit storing data for a recording time input when an instant recording mode is set in accordance with the present invention.

Further, reference numeral 30 denotes a timer that counts a preset recording time according to the instant recording under the control of the controller 12 and outputs a predetermined level signal when counting for the recording time ends, and 31 denotes, for example, an optical sensor. And a tape end detection unit for detecting the end of the tape based on whether the optical signal is transmitted or received, and 32 denotes the end of the tape from the control unit 12, the timer 30, and the tape end detection unit 31. The power supply control circuit is configured to control a power supply state of the VCR by applying a predetermined power control signal to the power supply unit 23 based on the signal.

2 is a diagram showing an example of the configuration of the power supply control circuit 32 shown in FIG. 1, and a configuration example of the power supply control circuit 32 will be described in detail with reference to the drawing.

The power supply control circuit 32 is a NAND gate as a logic operation element for NAND processing a signal output from the controller 12 and a signal output from the timer 30 to output a predetermined level signal, and a resistor. A transistor Q as a switching element which is connected to the output terminal of the NAND gate 33 via the R1 and the emitter terminal is grounded and turned on / off by a signal applied from the tape end detector 31. Is connected, and the power supply unit 23 is connected to the connection point A of the NAND gate 33 and the collector terminal of the transistor Q.

The normal playback operation of the VCR having the above configuration will be briefly described.

When the user inputs a 'PLAY' key through the control signal input unit 10, the controller 12 applies a predetermined control signal to the tape driving mechanism 13 and the signal recording / reading unit 14. The video / audio signal recorded on the video tape T is read by the signal recording / reading unit 14, and then a predetermined switching signal (e.g., a 'low' level) is input to the mode switch unit 15. Signal) so that the video / audio signal read out from the signal recording / reading unit 14 is applied to the signal reproducing processor 17.

Accordingly, the signal reproducing processor 17 pre-amplifies the corresponding video / audio signal, modulates the processed signal into a reproducible signal, and applies the signal to the signal output terminal. The video / audio signal applied to the signal output terminal is a reproducing apparatus. It is input to the playback device via an external signal input terminal (e.g., a television) and is reproduced and output through the CRT or speaker of the playback device.

At this time, under the driving control of the display driving unit 21, the state in which the reproducing operation is being performed is displayed, for example, as 'PLAY' and the reproducing time is displayed.

Hereinafter, a method of controlling power during instant recording of a video cassette recorder according to an embodiment of the present invention will be described in detail with reference to the flowchart shown in FIG. 3.

After the recording mode is set by the user according to the instantaneous recording from the control signal input unit 10 (step 50), when the recording time T1, for example, '60' minutes and the recording channel is input (step 52), the control unit 12 ) Performs a recording operation based on the recording channel and the recording time input from the control signal input unit 10 and sets the corresponding recording time to the timer 30 (step 54).

That is, in step 54, the controller 12 applies the tuning voltage VT for the recording channel to the tuner 18, and the tuner 18 selects the antenna based on the tuning voltage VT. Perform a tuning operation for a specific channel among a plurality of broadcast channels received through.

Subsequently, the broadcast signal of the channel tuned by the tuner 18 is applied to the video / audio IF processing unit 19 connected to the rear stage. The video / audio IF processing unit 19 amplifies the corresponding broadcast signal and then IF. The video signal and the audio signal are detected from the amplified broadcast signal, and the video signal and the audio signal are applied to the signal recording processing unit 20. Then, the signal recording processing unit 20 processes the video / audio signal as an amplifiable and recordable signal and applies it to the R stage of the mode switch unit 15. In this case, the control unit 12 controls the mode switch unit ( 15, a switch signal SW (eg, a 'high' level signal) is applied to the signal recording / reading unit 14 so that the video / audio signal for the specific channel applied to the R stage is applied.

At the same time, the control unit 12 applies a predetermined control signal to the signal recording / reading unit 14 and the tape driving mechanism 13 to send the video tape T from the signal recording processing unit 16 to the video tape T. Allow video / audio signals to be recorded.

At this time, the power control circuit 32 receives a 'high' level signal output from the controller 12 at one end of the NAND gate 33 and at the other end a 'low' output from the timer 30. As the level signal is applied, a 'high' level signal as a power driving signal is output from the NAND gate 33, and the 'high' level signal is applied to the power supply unit 23 through the resistor R2. The power supply unit 23 supplies operating power to the entire apparatus based on the AC power supplied from the outside.

While performing the above operation, the timer 30 performs a counting operation for the recording time T (step 56), and the counting recording time T is set by the controller 12. (T58), and if the counted recording time T does not match the recording time T1 input by the user (NO in step 58), go to step 54; Proceed with recording.

However, on the contrary, if the recording time T counted by the timer 30 reaches '60' minutes and coincides with the recording time T1 input by the user, for example, '60' minutes (YES in step 58). The control unit 12 applies a predetermined control signal to the tape driving mechanism 13 and the signal recording / reading unit 14 to stop the recording operation performed in step 54 (step 59).

Subsequently, when the time T1 set by the controller 12 and the counted time T coincide with each other, the timer 30 applies a 'high' level signal to the power control circuit 32. The power control circuit 32 is supplied with the 'high' level signal output from the controller 12 to one end of the NAND gate 33, and the 'high' level signal output from the timer 30 is applied to the NAND gate ( As applied to the other end of 33, the NAND gate 33 outputs a 'low' level signal as a power cutoff signal, and the 'low' level signal is applied to the power supply unit 23 via the resistor R2. (Step 62).

Accordingly, the power supply unit 23 turns off the power of the corresponding VCR by stopping the supply of the operating power supplied to the entire apparatus based on the 'low' level signal (step 64).

On the other hand, when the video tape T is recorded to the last end while the recording operation is performed in step 54, and the tape end is detected by the tape end detection unit 31, a 'high' level signal is output. Since the transistor 'Q' is turned on and the 'high' level signal output from the output terminal of the NAND gate 33 is bypassed through the transistor Q, the 'low' level is supplied to the power supply unit 23. Signal is applied. Accordingly, the power supply unit 23 turns off the power supply of the corresponding VCR by stopping the supply of operating power to the entire apparatus.

That is, according to the present invention described above, if the user inputs the recording channel and the recording time at the same time when setting the instant recording mode, the recording operation is performed only during the recording time, and then the power of the corresponding VCR is turned off after the recording time has elapsed. Turn it off.

As described above, according to the power control apparatus and method for instant recording of a video cassette recorder according to an embodiment of the present invention, the instant recording is performed only during the recording time input by the user, and the recording is performed immediately after the recording time has elapsed. By stopping the recording operation and turning off the power of the VCR, the user does not set the stop mode for immediate recording, which prevents the recording operation from being performed until an unnecessary time period and also prevents power consumption. You can do it.

Claims (6)

A tape driving mechanism 13 for driving control of the driving state of the video tape T, and a video / audio signal recorded on the video tape T or a predetermined video / audio signal on the video tape T A signal recording / reading unit 14 for recording a signal, a signal reproducing processing unit 17 for processing the video / audio signal from the signal recording / reading unit 14 into a reproducible signal, and tuning by a tuner 18 In a video cassette recorder comprising a signal recording processing section (20) for processing a broadcast signal of a specific channel into a recordable signal, A control signal input unit 10 for setting an instant recording mode and inputting a recording channel and a recording time T1; A control unit 12 for controlling the instant recording function based on the recording channel and the recording time T1 input from the control signal input unit 10 and setting the recording time to the following timer 30; A timer 30 for outputting a predetermined level signal when the ongoing recording time reaches the set recording time T1 under the control of the controller 12; A power supply control circuit 32 for controlling the power supply unit 23 to turn off the power of the video cassette recorder when the recording time T1 has elapsed based on the level signal applied from the control unit 12 and the timer 30. Power control device for instant recording of the video cassette recorder, characterized in that configured to include. The apparatus of claim 1, further comprising a tape end detector (31) for detecting the end of the video tape (T). The control circuit of claim 1, wherein the power supply circuit unit 32 records the recording time T1 counted by the timer 30 while the control unit 12 switches the recording mode. Power control device for the instant recording of the video cassette recorder, characterized in that consisting of a logic operation element 33 for outputting a power drive signal to the power supply unit 23 when the input recording time (T) has elapsed. The power supply driving signal according to claim 2, wherein the power supply control unit 32 outputs the power supply signal output from the logic operation element 33 when the end of the video tape T is detected from the tape end detection unit 31. And a switching element (Q) configured to bypass the power supply unit so that the power cutoff signal is applied to the power supply unit (23). A video tape recorder which performs a playback operation and a recording operation on a video tape T mounted in a deck based on a function setting signal input from an external device. The instant recording mode is set and the recording channel and the recording time (T1) are input. Tuning the recording channel on the tuner 18 to perform a recording operation on the recording channel and simultaneously setting the recording time T1 in the timer 30; Determining whether the counting recording time T passes the recording time T1 by counting the recording time T by the timer 30; Stopping a recording operation in progress when the recording time T1 elapses after the recording time T is set; Applying, by the power supply control circuit 32, a power off signal to the power supply unit 23 based on the signal from the timer 30 and the signal from the control unit 12; And the power supply unit (23) turns off the power of the video cassette recorder based on the power cutoff signal. The method according to claim 5, wherein when the video tape T runs to the end and the end of the video tape T is detected by the tape end detection unit 31, the video tape T outputs the detected signal from the tape end detection unit 31. And a power supply control circuit (32) for applying a power off signal to the power supply unit (23).