KR19990043333A - Automatic Stop Method for Detecting Wake-up Time of Complex Televisions - Google Patents

Abstract

The present invention is reproduced through the deck when the video tape recorded the wake-up time is the wake-up time, when there is no key input from the outside for a certain time during the playback time, the composite having a function to stop the playback by determining that the absence of the user It's about television. That is, generally, when the reservation time is recorded through a television or video tape, the television or video tape is reproduced at the recorded reservation time, and the power is wasted because the reproduction is continued in the absence of the user. Therefore, in the present invention, when the wake-up time recorded on the videotape is reproduced at the reserved time, if there is no key input signal from the outside for a predetermined time, the wake-up time detection of the composite television to automatically stop the playback operation is determined as the absence of the user. City auto stop method is suggested.

Description

Automatic Stop Method for Detecting Wake-up Time of Complex Televisions

The present invention plays a video tape when the wake-up time recorded on the video tape is recorded by the VCR (Video Cassette Recorder) included in the composite television. The present invention relates to an automatic stop method for detecting wake-up time of a composite television.

In general, the TVCR, which is a composite television, is an integrated type of a TV (Television) and a Video Cassette Recorder (VCR), and is supplied with a single power supply and is controlled by a system control (hereinafter referred to as Syscon). ) And a timer microcomputer (hereinafter referred to as timer [Timer]) that controls the entire system of TVCR. Each component is operated, and recording and playback of television broadcast signals, recording and playback of other cassette tapes, As a device used for broadcast recording, reservation recording, and absence recording of a channel, an AC bias method with low noise is adopted because there is no residual magnetic field due to a bias magnetic field even when recording on a cassette tape. The recording of the audio signal is relatively narrow in frequency range of 20-20000 Hz, and the phase relationship is not a problem. This being done the alternating-current bias method because. However, the frequency modulation (FM) recording method has been adopted for recording video signals because its frequency range is wide, about 0-4 MHz, and strict phase characteristics are required to faithfully reproduce waveforms. On the other hand, recording a television signal using a VCR is to record a control signal for generating an audio signal, a video signal of a television, and various control signals at the time of reproduction at different positions of the video tape. The configuration of the VCR for recording each of the above signals on a video tape is as follows.

1 is a block diagram of a recording unit of a VCR for recording a television signal on videotape. The configuration for recording the audio signal of the television, the configuration for recording the video signal, and the configuration for recording the control signal are divided. The recording apparatus is provided with an audio signal processing unit 1 for receiving an audio signal input from a television or the like and processing the signal into a type of signal suitable for recording on magnetic tape. An audio signal recording unit comprising an additional oscillator 2 and an audio head 3 for recording the audio signal output from the oscillator 2 on magnetic tape; A composite video signal processor 4 for IF amplification and Y / C separation processing of a composite video signal input from a television, etc., and a luminance signal processor for FM modulation and processing the luminance signal output from the composite video signal processor 4 above; 5) and an FM modulator 6, a color signal processor 7 and a low pass converter 8 for performing low-pass conversion on the color signal output from the composite video signal processor 4, and the FM converter 6 above. A video recording unit comprising a mixing unit 9 for mixing the luminance signal output from the low frequency conversion unit 8 and a color signal output from the low pass conversion unit 8, and a video head 10 for recording the video signal mixed in the mixing unit 9; A vertical synchronous signal processing unit 11 for processing a vertical synchronous signal input from a television or the like, a countdown 12 for downgrading the vertical synchronous signal input from the vertical synchronous signal processing unit 11 to 1/2, and And a control recording section composed of a control head 13 for recording a control signal capable of generating various control signals at the time of reproduction of the videotape by means of the countdown 12 signal.

FIG. 2 is a diagram relating to a recording state of a video tape recorded by the recording apparatus of FIG. When the video tape reproduces the audio signal recorded in the longitudinal direction and the recorded video tape at a position corresponding to the video signal recorded in the edge musque manner in the longitudinal direction on the entire tape and the video signal recorded at the upper end of the tape, A control signal recorded in the longitudinal direction of the tape is recorded to generate a control signal capable of performing a convenient function or the like.

When a video wake-up time is recorded in the control signal recording area, a video signal, an audio signal, and a control signal are recorded by such a recording device. However, if the user goes out when the video is played by the scheduled wake-up time, the video tape is continuously played.

Therefore, the present invention is to solve the problem as described above, the object of the present invention is the wake-up time recorded on the videotape, the VCR is played when the user is out of the house and the time automatically from the timer The present invention provides an automatic stop method for detecting wakeup time of a composite television that counts and automatically stops playback after a predetermined time.

1 is a block diagram of a recording apparatus of a general VCR.

2 is a diagram for explaining a recording state of a video tape;

Figure 3 is a block diagram schematically showing an automatic stop device upon detection of wake-up time of a composite television according to the present invention

4 is a flowchart illustrating an automatic stop method upon detection of a wake-up time of a composite television according to the present invention.

* Explanation of symbols for main parts of the drawings

100: tuner circuit section 110: intermediate frequency IC section

120: chroma IC unit 130: color signal driver

140: Winner 150: Timer

160: remote controller 170: VCR Y / C IC unit

180: sheath cone 200: signal recording unit

200a: head amplifier IC 200b: video head

200c: Audio processing IC unit 200d: Audio head

200e: control amplifier 200f: control head

Hereinafter will be described in detail with reference to the accompanying drawings for the configuration and operation of the embodiment for achieving the above object of the present invention.

3 is a block diagram of an auto stop device upon detection of wake-up time of a composite television according to the present invention.

The present invention provides a high frequency amplifying unit for amplifying a high frequency signal, which is a composite video signal received from an antenna, a mixing unit for converting an input signal amplified from the high frequency amplifying unit and a local oscillation frequency from a local oscillating unit to convert to an intermediate frequency and the mixing unit. A tuner circuit section 100 composed of a local oscillation section for supplying a signal for frequency conversion to the apparatus; An intermediate frequency IC unit 110 connected to the tuner circuit unit 100 and amplifying and processing an intermediate frequency signal which is a complex video signal applied from the tuner circuit unit 100; A chroma IC unit 120 connected to the intermediate frequency IC unit 110 and performing color demodulation processing on a composite video signal applied from the intermediate frequency IC unit 110; The color signal driver 130 and the color signal driver 130 which are connected to the chroma IC unit 120 and perform a driving operation to display the RGB output color signal of the chroma IC unit 120 on the water pipe 140. An image tube 140 on which an image signal is displayed;

On the other hand, the remote controller 160 having a button for switching on and off the power of the composite television; A timer (150) for applying a control signal to the chroma IC unit (130) and the sheath cone (180) when the on-change signal of the power is applied from the remote controller (160); A scicon 180 that interfaces with the timer 150 and generates a control signal necessary for the operation of the VCR; A video head 200b for reading a video signal recorded on a video track of a video tape; An audio head 200d for reading out an audio signal recorded on an audio track of a videotape; A control head 200f for reading a control signal recorded on a control track of the video tape; A head amplifier IC unit 200a connected to the video head and amplifying and outputting a video signal applied from the video head 200b; An audio processing IC unit (200c) connected to the audio head (200d) for improving output characteristics of an audio signal applied from the audio head (200d); A control amplifier 200e connected to the control head 200f and amplifying a signal for a morning wake-up applied from the control head 200f; It is composed of a VCR Y / C IC unit 170 which detects and demodulates the video and audio signals applied from the head amplifier IC unit 200a and the audio processing IC unit 200c and applies them to the chroma IC unit 120. do.

Referring to FIG. 3, first, a method mainly used for receiving a broadcast signal using the tuner circuit unit 100 is a frequency synchronization method (FS), and the FS method uses a timer for each channel. When a user inputs a reference frequency corresponding to the user and selects a broadcast channel, the tuner circuit unit 100 receives the broadcast by transmitting the reference frequency of the corresponding channel as data. Here, in more detail about the components of the tuner circuit unit 100, the high-frequency signal received from the antenna is characterized by the characteristic impedance of the feeder (Feeder) through the input circuit (not shown) of the tuner circuit unit 100 and the high frequency amplification unit The input impedance is matched and output to the high frequency amplifying unit, and the high frequency amplifying unit increases the gain of the received high frequency signal, improves selectivity, and prevents image disturbance. In addition, the S / N ratio is improved, and the local oscillation frequency output from the local oscillator is prevented from being radiated to the antenna to affect other receivers. The signal amplified by the high frequency amplification unit and the frequency output from the local oscillator are input to a mixing unit, and the mixing unit mixes the high frequency signal and the local oscillation unit frequency to generate an intermediate frequency corresponding to the difference between two frequencies. And print it out. In addition, the intermediate frequency IC unit 110 having the intermediate frequency output from the tuner circuit unit 100 as an input may amplify the applied intermediate frequency to increase sensitivity and increase selectivity to increase image output. In addition, the image signal output from the intermediate frequency IC unit 110 is input to the chroma IC unit 120 and processed as a signal suitable for displaying a composite video signal on the water pipe 140, the chroma IC unit ( The RGB color signal processed and output by the color signal 120 is performed to display the RGB color signal from the color signal driver 130 on the water pipe 140.

The above description is a block diagram illustrating a process of displaying a composite video signal transmitted from a broadcasting station in a receiving tube. Hereinafter, an automatic stop method for detecting wake-up time of a composite television according to the present invention is first applied to a remote controller 160. The on / off switching button is provided, and when switched from the above, the timer 150 controls the block diagram related to the television system, and the ciscon 180 receiving the control signal through the interface with the timer 150 is a VCR. Control the set.

The video head 200b reads the video signal recorded on the video track of the videotape, and the video signal read from the video head 200b is amplified by the head amplifier IC unit 200a. The audio head 200b reads the audio signal recorded on the audio track of the video tape, and the audio signal read from the audio head 200b is applied to the audio processing IC unit 200c and processed as a signal suitable for output. do. The output signals of the head amplifier IC unit 200a and the audio processing IC unit 200c are applied to the VCR Y / C IC unit 170, demodulated, and then output to the chroma IC unit 120, thereby receiving a water pipe 140. ) Is displayed. The control head 200f reads a control signal for controlling the video and audio signals recorded on the control track of the video tape, amplifies the control signal from the control amplifier 200e, and outputs the control signal to the sheath cone 180. On the other hand, if the morning wake-up time recorded in the control track of the video tape through the control head 200f is detected from the sheath 180, the sheath 180 plays the video tape at the detected wake-up time. The timer 150 that interfaces with the sheath 180 stops the video tape playback operation when there is no key input from the outside for a predetermined time during which the video tape is played.

4 is a flowchart illustrating an automatic stop method when detecting wake-up time of a composite television according to the present invention. First, the flowchart shows a switching step of turning on a power state when playing a video tape on which a wake-up time of a composite television is recorded (S100). A wakeup area search step (S200) of searching for a wakeup area of the video tape in the switched state; and a wakeup time check step (S300) of checking whether the found wakeup time is equal to a current time; If the current time from the wake-up time check step, the video tape playback and playback time initialization step (S400) to initialize the playback time at the same time to play the video tape from the video tape playback and playback time initialization step Step of comparing the playing time and the maximum playing time comparing the playing time and the maximum playing time set by the timer 150 (S500), a playback stop step (S600) for stopping playback when the playback time exceeds the maximum playback time set by the timer 150 from the comparison step, and the maximum playback time set by the timer 150; Remote controller key input check step (S900) for checking whether there is a key input from the remote controller 160 when the play time is not exceeded, a power button input for checking the input of the power button, and switching the power off and power off switching Steps S700 and S800 are made.

Referring to the flow chart of the automatic stop method when detecting the wake-up time of the composite television as described above, in the power-on switching step (S100) the user from the remote controller 160 and the power button provided on the front of the composite television Check if there is input.

In the wakeup area search step S200 of the tape, the control head 200f detects the wakeup time by searching the control track of the video tape. In the wakeup time check step S300, the wakeup area search step is performed. Check if the detected wake-up time matches the current time.

In the videotape playback and playback time initialization step (S400), when the wakeup time is determined from the wakeup time check step, the playback time is initialized to count the time at which the videotape is played at the same time. The interrupt replay time is increased to indicate the time elapsed by the interrupt.

Therefore, in the comparison between the playback time and the maximum playback time (S500), it is checked whether the playback time exceeds the maximum playback time set by the scissor 180.

Then, when the playback time from the playback time and the maximum playback time comparison step exceeds the maximum playback time set in the system 180, the VCR playback is stopped from the playback stop step (S600), and the playback time is the maximum playback time. If not exceeding, the user checks whether the remote controller 160 is pressed in the key input confirmation step (S900) of the remote controller 160, and finally, the power button input and power-off switching process (S700, S800). ) Turns off the power by checking whether the power button is pressed.

As described above, in the present invention, when the wakeup time is recorded in the control recording area of the videotape, the composite television VCR is played during the wakeup time. When the time elapses, the playback is stopped, i.e., the power is automatically turned off in the absence of power, thereby reducing power consumption.

Claims (3)

The video tape recorded with the wake-up time is played during the wake-up time. In the composite television which stops the playback operation when there is no external key input for a predetermined time during playback, (S100) switching on the power of the composite television having the automatic stop function upon wake-up time detection; A wake-up area search step (S200) of searching for a wake-up area of the video tape in the switched state; Wake-up time check step (S300) for checking whether the wake-up time searched above is the same as the current time; If the current time is the wake-up time from the wake-up time check step, the video tape playback and playback time initialization step (S400) for playing the video tape and at the same time initializes the playback time; A playback time and a maximum playback time comparison step (S500) for comparing the time played from the videotape playback and playback time initialization steps with the maximum playback time set by the timer 150; A playback stop step (S600) of stopping playback if the playback time exceeds the maximum playback time set by the timer 150 from the comparison step; A remote controller key input check step (S900) for checking whether there is a key input from the remote controller 160 when the play time does not exceed the maximum play time set by the timer 150; The automatic stop method for detecting wake-up time of a composite television, comprising a power button input and a power off switching step (S700, S800) for checking the power button input and switching off the power. The control amplifier 200e of claim 1, wherein the wake-up area search step S200 is performed when the control head 200f reads the control signal recorded on the control track of the video tape and applies the control signal to the control amplifier 200e. Amplifying the read control signal and outputting the amplified control signal to the ciscon 180, the siscon 180 searches for a wakeup time from the control signal. 2. The wake-up time of the composite television according to claim 1, wherein in the video tape playback and playback time initialization step (S300), the playback time can be searched by counting the time through the interrupted initialization playback time. Auto stop method upon detection.