KR19990043330A - How to record and wake up wake-up signal for composite television - Google Patents

Abstract

The present invention relates to a composite television for recording a control signal on a control track of a video tape played by a video cassette recorder (TVCR). In particular, a wake-up time is detected by correcting a wake-up time from a video tape on which a wake-up time is recorded. To make it possible. That is, according to the present invention, when the OSD character screen is displayed on the receiving tube after detecting information about the wake-up time recorded in the control track of the video tape from the scissor by performing the rewind and fast forward, the user can change the channel and volume up / down. Set the desired wake-up time using the button, and the set wake-up time is a wake-up of the composite television which generates a pulse signal from the CTL processing unit, amplifies the signal in the control amplifier unit, and then records it on the control track through the control head. A signal correction recording method is presented.

Description

How to record and wake up wake-up signal for composite television

The present invention relates to the recording of a VCR (Video Cassette Recorder) included in a composite television. In particular, the morning wake-up of a composite television that detects the wake-up time recorded on the videotape and allows the user to correct and record the recorded wake-up time. An up signal correction recording method.

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.

If the morning wake-up time is recorded in the control track of the video tape on which the video signal and the audio signal are recorded by such a recording apparatus, there is a problem that the video tape is reproduced at a time that is not desired by the user who is currently watching the video tape.

Therefore, the present invention is to solve the above problems, an object of the present invention is to detect the wake-up time recorded on the video tape by rewind and fast forward to detect the wake-up time detected by the OSD character screen The display allows the user to operate the desired wake up time with the channel and volume up / down buttons. The morning wake-up time of the composite television generates the corresponding pulse signal from the CTL processing unit, amplifies the signal in the control amplification, and then records the morning wake-up time modified through the control head. An up signal correction recording method is provided.

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 a morning wake-up signal correction recording device of a composite television according to the present invention

Figure 4a is a waveform diagram defined as a digital code signal of '1' and '0' by changing the duty ratio of the 'T' signal, which is the period of the control pulse, to 1 / 3T and 2 / 3T

4B is a modified and recorded state diagram of a synchronization signal, a command signal, and a wake-up time generated by the digital code of FIG. 4A.

5 is a flowchart illustrating a wake-up signal correction and recording method 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: OSD generator 170: VCR Y / C IC unit

180: ciscon 190: CTL processing unit

200: signal recording section 200a: head amplifier IC section

200b: video head 200c: audio processing IC unit

200d: Audio head 200e: Control amplifier

200f: control head 190a: synchronization signal

190b: child lock code 190c: timestamp

190d: Minutes

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 a wake-up signal storage recording apparatus 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 210 having a wake-up correction recording button and a channel, a volume up / down button, etc. for correcting and recording the morning wake-up time on the video tape of the composite television; When the morning wake-up correction recording button included in the remote controller 210 is selected by the user, an electric signal corresponding to the morning wake-up correction recording button is generated, and a predetermined control signal is generated and output to the chroma IC unit 120 and the system described later. A timer 150 that interfaces with the cone 180 to control the complex television system; OSD character is connected to the timer 150, and when the control signal corresponding to the recording reservation button is applied from the timer 150, the wake-up detection information and the morning wake-up time can be modified and recorded through the water pipe 140. An OSD generator 160 for outputting a signal; In addition, the scissor 180 is connected to the timer 150 and applies a control signal to each block unit of the VCR required by the present invention according to a control signal through an interface with the timer 150; A VCR Y / C IC unit 170 connected to the ciscon 180 and processing a video signal according to a control signal of the ciscon 180; A head amplifier IC unit 200a for amplifying and processing a signal when recording a video signal applied from the VCR Y / C IC unit 170; A video head (200b) connected to the head amplifier IC unit (200a) for recording a video signal applied from the head amplifier IC unit (200a) to a video track of a video tape; An audio processing IC unit 200c connected to the VCR Y / C IC unit 170 and processing an audio signal applied from the VCR Y / C IC unit 170 as a recordable signal; An audio head (200d) connected to the audio processing IC unit (200c) for recording an audio signal applied from the audio processing IC unit (200c) as an audio track of a video tape; The control signal recording area of the video tape is connected to the sheath cone 180, and a pulse signal corresponding to a sync signal, a code signal for a child lock, and a password are transmitted to the control signal recording area of the video tape. A CTL processing unit 190 for processing the control signal for recording; A control amplifier 200e for amplifying the control signal processed by the CTL processor 190 when the control signal processed by the CTL processor 190 is applied from the sheath cone 180; The control head 200f is connected to the control amplifier 200e and records the synchronization signal and the child lock signal amplified by the control amplifier 200e in the control track of the video tape.

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 on a receiving tube. Hereinafter, a method of recording a wake-up signal for a composite television according to the present invention may be a videotape. A wake-up correction record button is provided for detecting the recorded morning wake-up time and correcting and recording the wake-up time at a desired time. When the correction record button of the remote controller 210 is selected by the user, the timer 150 ) Detects an electrical signal corresponding to the correction recording button and interfaces a control signal through the interface with the sheath cone 180. When the morning wake-up correction recording button is applied through the interface with the timer 150, the sheath controller 180 controlling the VCR operates the slow and fast forward to record the morning wake-up time recorded on the control track of the video tape. The OSD wake-up time from the OSD generating unit 160 is configured as an OSD character, and the OSD character signal is output to the receiving tube 140 through the chroma IC unit 120 and the color signal driver 130. The viewer sets the wakeup time detected by the OSD text broadcasting to the wakeup time desired by the user by using the channel up / down and volume up / down buttons. Therefore, when the morning wakeup time is modified from the remote controller 210, the timer 150 and the sheath cone 180 may synchronize the morning wakeup signal, the command for the morning wakeup, and the morning wakeup time modified by the user. The control signal is applied to the CTL processing unit 190 generating a control signal in order to record. The CTL processing unit 190 using the control signal generates a synchronization signal, a wakeup command signal, and a wakeup correction time. The synchronization signal, the wakeup command signal, and the wakeup correction time are illustrated in FIG. This will be described with reference to FIG. 4B.

Reference symbol 4 of FIG. 4A assumes the period of the videotape control signal as 'T', and reference symbol 정의 is defined as the digital character '0' by converting the duty ratio to 1 / 3T for the 'T' period. The reference symbol ⒞ is defined as the digital character '1' by converting the duty ratio to 2 / 3T for the 'T' period. Accordingly, the synchronization signal, the wake-up command signal, and the modified wake-up time can be generated by combining the digital characters '0' and '1'. In one embodiment of the present invention, the synchronization signal is a hexacode 'FF'. The wakeup command signal is defined as a hexacode '01', and the wakeup modification time is also recorded in the hexacode. Therefore, the synchronization signal of 'FF' generated by the CTL processing unit 190 is stored in the reference symbol 190a in the form of '11111111' in one byte, and the morning wake-up command signal is referred to in the form of '00000001' in one byte. Stored at symbol 190b. In the reference symbol 190c, the time for the wakeup modified by the composite television user is recorded as a binary digital signal, and in the reference symbol 190d, the minute for the wakeup is stored.

The synchronization signal, the wake-up time, and the modified hours and minutes of data generated by the CTL processing unit 190 are applied to the control amplifier 200e through the sciscon, and the control amplifier 200e receives the CTL signal. The amplification process is performed to increase the output, and the synchronization signal, the wake-up command signal, and the wake-up correction time amplified by the control amplifier 200e are recorded on the control track of the video tape by the control head 200f. In addition, the video and audio signals other than the control signals are demodulated by the VCR Y / C IC unit 170 by the control signals of the scissor 180, and the demodulated video signals are recorded by the head amplifier IC unit 200a. The signal is recorded on the video track by the video head 200b after being processed again into a possible signal, and the audio signal is applied to the audio processing IC unit 200c to be processed into a recordable signal, and then the audio is output by the audio head 200d. Are recorded on the track.

FIG. 5 is a flowchart illustrating a morning wake-up signal correction recording method of a composite television according to the present invention. Hereinafter, the flowchart will be described in detail.

First, the flowchart is a process (S100) for switching on the state of the composite television power to correct the morning wake-up signal, and in the wake-up correction recording button provided in the remote controller 210 in the on-switched state A corresponding wake wakeup corrected recording signal detection process (S200), and when a wakeup corrected recording signal is detected from the process (S200), a process of executing a read and a fast forward to detect the morning wakeup record information (S300). And, if the morning wake-up time is detected from the process (S300) and the next process is executed, if not detected (S400) and if the morning wake-up time is detected from the process (S400) morning wake-up Stopping the detection of the up signal and displaying the detected information by the receiving pipe 140 as an OSD character (S500), and displaying it through the OSD screen. A correction time input process (S600) for operating the morning wakeup time using a channel up / down button and a volume up / down button as a wakeup time desired by the user, and a modified wakeup time input from the process (S600). The process of recording (S700), and when the power button is applied from the process (S700) is made of a process of switching off the power (S700).

Referring to the flowchart of the wake-up signal correction recording method of the composite television as described above, the timer 150 in the step (S200) of detecting a signal applied from the wake-up correction recording button in the power-on state A signal corresponding to the wake-up correction recording button included in the remote controller 210 is detected. In the execution process of the REWAND / fast forward FF, in response to the control signal of the system 180, the control head ( 200f) detects the information of the wakeup time recorded in the control track of the videotape. In the wakeup detection process (S400), the wakeup information is detected from the process (S300), and the signal detection stop process (S500). In the display, the OSD detected by the OSD generating unit 160 to display the information detected from the wake-up detection process (S400) to the receiving tube 140, the display The user can operate the wake-up time to be reserved using the channel up / down button and the volume up / down button provided in the remote controller 210 through the relayed water pipe 140. When the wake-up time is manipulated, the next process (S700) is performed. If there is no input from the remote controller 210, the whole process (S600) is executed again. In the correction recording process (S700), the time modified by the correction time input process (S600) is generated by the CTL processing unit 190, and the generated CTL signal is amplified by a recordable signal by the control amplifier 200e. The control head 200f records the data in the control recording area of the video tape. Then, after the signal is recorded in the control track, if the power button is input from the process of checking the power button input (S800), the power is switched off (S700).

As described above, the present invention has the effect of detecting the recorded wake up time previously recorded from the video tape on which the wake up time is recorded, and correcting and recording the desired wake time.

Claims (3)

In a composite television that has a wake-up time correction recording function when playing a video tape recorded with wake-up time, Detecting wake-up time by executing the resume and fast forward from the control signal of the scissor 180 to detect the wake-up time recorded on the videotape; When the recorded wake-up time is detected from the above process, outputting an OSD text screen to allow a user to set a morning wake-up time to be corrected; Generating a control signal for the morning wake-up time reset from the above process as a hexacode from the CTL processing unit 190; And recording the morning wake-up time generated by the CTL processing unit (190) as a control track of the video tape. The method of claim 1, wherein the generating of the wakeup time as a hexacode by the CTL processing unit 190 comprises: detecting a period for 'T' of the control area of the videotape in which the wakeup time is recorded; Defining '0', which is a digital character, '1 / 3T' times from the detected 'T' period, and '1', which is a digital character, '2 / 3T' times a value; The combination of the digital characters for '0' and '1' generates a hexacode such as 'FF', which is a 1-byte sync signal for morning wakeup, and a command for morning wakeup also includes a '01' in 1 byte. And generating a hexacode such that the remaining wakeup time is modified by the remaining two bytes. The method of claim 1, wherein the recording of the modified morning wake-up time comprises: a command signal, a synchronization signal, and a user-modified morning wake-up time for the modified morning wake-up time generated by the CTL processing unit 190. Outputting data to the sheath cone 180; Outputting a command signal for a morning wakeup time, a synchronization signal, and a data and control signal for a morning wakeup time modified by a user to the control amplifier 200e; Amplifying a command signal for a morning wakeup time applied to the control amplifier 200e, a synchronization signal, and a data signal for a morning wakeup time modified by a user into a signal recordable on a video tape; And recording the signal for the morning wake-up amplified in the step as a control track of the video tape with the control head (200f).