Nothing Special   »   [go: up one dir, main page]

KR960013303B1 - Control circuit for delaying brightness signal of t.v. - Google Patents

Control circuit for delaying brightness signal of t.v. Download PDF

Info

Publication number
KR960013303B1
KR960013303B1 KR1019930014755A KR930014755A KR960013303B1 KR 960013303 B1 KR960013303 B1 KR 960013303B1 KR 1019930014755 A KR1019930014755 A KR 1019930014755A KR 930014755 A KR930014755 A KR 930014755A KR 960013303 B1 KR960013303 B1 KR 960013303B1
Authority
KR
South Korea
Prior art keywords
signal
output
delay
color
luminance
Prior art date
Application number
KR1019930014755A
Other languages
Korean (ko)
Other versions
KR950004979A (en
Inventor
이용원
Original Assignee
금성일렉트론 주식회사
문정환
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 금성일렉트론 주식회사, 문정환 filed Critical 금성일렉트론 주식회사
Priority to KR1019930014755A priority Critical patent/KR960013303B1/en
Publication of KR950004979A publication Critical patent/KR950004979A/en
Application granted granted Critical
Publication of KR960013303B1 publication Critical patent/KR960013303B1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/77Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/16Picture reproducers using cathode ray tubes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/44Colour synchronisation
    • H04N9/455Generation of colour burst signals; Insertion of colour burst signals in colour picture signals or separation of colour burst signals from colour picture signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

a delaying part(22) outputting a brightness signal(Y) into a CRT by varying the amount of delaying in response to the output of a delay controller(25); a brightness signal amplifying part(23) amplifying the brightness signal(Y') outputted from the delaying part(22) into a level appropriate for processing in the next step; a horizontal synchronization signal separating part(24) separating a horizontal synchronization signal(Hsync) from the brightness signal(Y') outputted from the brightness signal amplifying part(23); and a delay controlling part(25) outputting the positive or negative rectangular wave having the pulse width corresponding to a phase difference by comparing the rectangular wave with the horizontal synchronization signal(Hsync) after converting the color burst signal outputted from a color signal processing part(26) to the rectangular wave.

Description

텔레비젼 수상기의 휘도신호 지연 제어회로Luminance Signal Delay Control Circuit of Television Receiver

제1도는 일반적인 텔레비젼 수상기의 블록도.1 is a block diagram of a typical television receiver.

제2도는 제1도에서 색차신호 재생부의 상세 블록도.2 is a detailed block diagram of a color difference signal reproducing unit in FIG.

제3도는 본 발명 텔레비젼 수상기의 휘도신호 지연 제어 블록도.3 is a block diagram of a luminance signal delay control of a television receiver according to the present invention;

제4도의 (가)는 수평귀선신호의 파형도이고, (나)는 수평동기신호의 파형도.4A is a waveform diagram of a horizontal retrace signal, and (B) is a waveform diagram of a horizontal synchronous signal.

제5도는 (가)는 실제의 지연량을 보인 영상신호의 파형도이고, (나)는 지연시간이 발생된 경우의 컬러버스트신호의 파형도.5 is a waveform diagram of an image signal showing an actual delay amount, and (b) is a waveform diagram of a color burst signal when a delay time occurs.

제6도는 제3도에서 지연부, 수평동기신호 분리부, 지연제어부의 일실시 예시 상세 블록도.FIG. 6 is a detailed block diagram of an exemplary embodiment of a delay unit, a horizontal synchronization signal separator, and a delay controller of FIG.

제7도의 (가)-(다)는 제6도에서 수평동기신호 분리부 각부의 파형도.7A to 7C are waveform diagrams of respective parts of the horizontal synchronous signal separator in FIG.

제8도의 (가)-(다)는 제6도에서 시퀸셜형 위상검출기의 입출력파형도.(A)-(c) of FIG. 8 is the input / output waveform diagram of the sequential phase detector in FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

21 : Y/C 분리부 22 : 지연부21: Y / C separation unit 22: delay unit

23 : 휘도신호 증폭부 24 : 수평동기신호 분리부23: luminance signal amplification unit 24: horizontal synchronous signal separation unit

25 : 지연 제어부 26 : 색신호 처리부25 delay controller 26 color signal processor

27 : 발진부 28 : 복조부27: oscillation unit 28: demodulation unit

29 : 매트릭스 30 : 씨알티29: Matrix 30: Citi

본 발명은 텔레비젼 수상기에서 휘도신호와 색신호의 정합을 맞추는 기술에 관한 것으로, 특히 휘도신호의 지연량을 자체적으로 검출하여 색신호와의 정합을 맞추어주는데 적당하도록한 텔레비젼 수상기의 휘도신호 지연 제어회로에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for matching luminance signals and color signals in a television receiver, and more particularly, to a luminance signal delay control circuit of a television receiver adapted to detect a delay amount of a luminance signal by itself and to match a color signal. will be.

제1도는 일반적인 텔레비젼 수상기의 블록도로서 이에 도시한 바와 같이, 튜너(1), 중간주파 증폭부(2), 영상검파부(3)를 순차적으로 통해 출력되는 복합영상신호(CV)를 공급받아 처리하기에 적당한 수준으로 증폭하는 영상신호 증폭부(4)와, 상기 영상신호 증폭부(4)에서 출력되는 복합영상신호(CV)에서 휘도신호(Y)와 색신호(C)를 분리해내는 Y/C분리부(5)와, 상기 Y/C 분리부(5)에서 출력되는 휘도신호(Y)를 기 설정된 시간(10-6초)만큼 지연시키는 지연부(6)와, 상기 Y/C 분리부(5)에서 출력되는 색신호(C)를 공급받아 색차신호(R-Y),(B-Y),(G-Y)를 생성하는 색차신호 재싱부(7)와, 상기 지연부(6)에서 소정시간 지연된 색신호를 공급받고, 상기 색차신호 재생부(7)로부터 색차신호(R-Y),(B-Y),(G-Y)를 공급받아 색신호(R),(G),(B)를 생성하여 이를 씨알티(11)에 출력하는 매트릭스(8)와, 상기 영상신호 증폭부(4)로부터 복합영상신호(CV)를 공급받아 동기신호(sync)를 분리해내는 동기 분리부(9)와, 상기 동기분리부(9)로부터 동기신호(sync)를 공급받아 상기 씨알티(11)에 수직, 수평 편향신호를 출력하는 편향부(10)로 구성된 것으로, 이와 같이 구성된 종래 시스템의 작용을 설명하면 다음과 같다.FIG. 1 is a block diagram of a general television receiver. As shown in FIG. 1, a composite video signal CV, which is sequentially output through a tuner 1, an intermediate frequency amplifier 2, and an image detector 3, is supplied. Y, which separates the luminance signal (Y) and the color signal (C) from the composite video signal (CV) output from the video signal amplifying unit (4) for amplifying to a level suitable for processing. / C separator 5, delay unit 6 for delaying the luminance signal Y output from the Y / C separator 5 by a predetermined time (10 -6 seconds), and the Y / C The color difference signal ashing unit 7 receives the color signal C output from the separation unit 5 and generates the color difference signals RY, BY, and GY, and is delayed by the delay unit 6 for a predetermined time. The color signal is supplied, and the color difference signals RY, BY, and GY are supplied from the color difference signal reproducing unit 7 to generate the color signals R, G, and B, and to generate the color signals 11. Matrix 8 to be output to A sync separator 9 for receiving a composite video signal CV from the video signal amplifier 4 to separate sync signals, and a sync signal sync from the sync separator 9. It is composed of a deflection unit 10 for receiving the vertical and horizontal deflection signal to the CALTI 11, the operation of the conventional system configured as described above is as follows.

튜너(1), 중간주파 증폭부(2), 영상검파부(3)를 순차적으로 통해 출력되는 복합영상신호(CV)는 영상신호증폭부(4)에 공급되어 시스템에서 처리하기에 적당한 레벨로 증폭된 후 Y/C 분리부(5)에 공급되어 휘도신호(Y)와 색신호(C)가 분리되어 휘도신호(Y)는 지연부(6)에 공급되고, 색신호(C)는 색차신호 재생부(7)로 공급된다.The composite image signal CV, which is sequentially output through the tuner 1, the intermediate frequency amplifier 2, and the image detector 3, is supplied to the image signal amplifier 4 to a level suitable for processing in the system. After being amplified, it is supplied to the Y / C separation unit 5 to separate the luminance signal Y and the color signal C, and the luminance signal Y is supplied to the delay unit 6, and the color signal C is reproduced with the color difference signal. It is supplied to the part 7.

상기 색신호(C)는 대역폭이 좁은 색차신호 재생부(7)를 통해 씨알티(11)에 공급되므로 휘도신호(Y)에 비해 다소의 지연시간이 발생되는데, 이를 보상하기 위하여 상기 지연부(6)에서 휘도신호(Y)를 소정시간(10-6초) 지연시켜 출력하게 된다.Since the color signal C is supplied to the CL through the color difference signal reproducing unit 7 having a narrow bandwidth, some delay time is generated compared to the luminance signal Y. To compensate for this, the delay unit 6 ) Outputs the luminance signal Y with a delay of a predetermined time (10 -6 seconds).

그러나, 이와같은 종래의 회로에 있어서는 색신호와 휘도신호의 지연시간차분을 미리 설정하여 그 설정된 값을 고정시켜 놓게 되므로 동작온도, 휘도신호의 주파수 변화 등의 요인에 의해 두 신간의 지연변화가 발생될때 이에 능동적으로 대응할 수 없게 되고, 이로인하여 휘도신호와 색신호를 정확하게 매칭시킬 수 없는 결함이 있었다.However, in such a conventional circuit, since the delay time difference between the color signal and the luminance signal is set in advance and the set value is fixed, when a delay change between the two signals occurs due to factors such as an operating temperature and a frequency change of the luminance signal. There is a defect that cannot actively cope with this, and therefore cannot accurately match the luminance signal with the color signal.

본 발명은 이와같은 종래의 결함을 해결하기 위하여 외부의 요인에 의하여 색신호와 휘도신호간의 지연시간이 변화되더라도 이에 능동적으로 대응하여 두 신호간에 정확한 매칭이 이루어지게 창안한 것으로, 이를 첨부한 도면에 의하여 상세히 설명한다.The present invention has been devised to accurately match the two signals in response to the delay time between the color signal and the luminance signal due to external factors in order to solve such a conventional defect, according to the accompanying drawings It explains in detail.

제3도는 본 발명 텔레비젼 수상기의 휘도신호 지연 제어회로에 대한 블록도로서 이에 도시한 바와같이, 복합영상신호(CV)에서 휘도신호(Y)와 색신호(C)를 분리해내는 Y/C 분리부(21)와, Y/C 분리부(21)에서 출력되는 휘도신호(Y)를 지연시켜 출력함에 있어서, 지연 제어부(25)에서 출력되는 펄스폭에 상응되게 지연량을 가변시키는 지연부(22)와, 상기 지연부(22)에서 출력되는 휘도신호(Y')를 이후의 단에서 처리하기에 적당한 레벨로 증폭하는 휘도신호 증폭부(23)와, 상기 휘도신호 증폭부(23)에서 출력되는 휘도신호(Y˝)로부터 수평동기신호(Hsync)를 분리해내는 수평동기신호 분리부(24)와, 색신호 처리부(26)에서 출력되는 컬러버스트신호를 구형파로 변화시킨 후 이 구형파와 상기 수평동기신호(Hsync)의 위상차를 비교하여 위상차에 상응되는 펄스폭을 갖는 정극성 또는 부극성의 구형파를 출력하는 지연 제어부(25)와, 상기 Y/C 분리부(21)로부터 색신호(C)를 공급받아 이를 처리하는 색신호 처리부(26)와, 상기 색신호 처리부(26)의 출력신호를 공급받아 소정 주파수(3,5MHZ)의 신호를 발진하는 발진부(27)와, 상기 색신호 처리부(26)의 출력신호와 발진부(27)의 출력신호를 공급받아 색차신호(R-Y),(B-Y),(G-Y)를 생성하는 복조부(28)와, 상기 휘도신호 증폭부(23)의 출력신호 및 복조부(28)에서 출력되는 색차신호(R-Y),(B-Y),(G-Y)를 공급받아 색신호(R),(G),(B)를 생성하여 이를 씨알티(30)에 출력하는 매트릭스(29)로 구성한 것으로, 이와 같이 구성한 본 발명의 작용 및 효과를 첨부한 제4도 및 제5도를 참조하여 상세히 설명하면 다음과 같다.3 is a block diagram of a luminance signal delay control circuit of a television receiver according to the present invention. As shown therein, a Y / C separation unit for separating the luminance signal Y and the color signal C from the composite video signal CV is shown. 21 and the delay unit 22 for varying the delay amount corresponding to the pulse width output from the delay control unit 25 in delaying and outputting the luminance signal Y output from the Y / C separation unit 21. ), A luminance signal amplifier 23 for amplifying the luminance signal Y 'output from the delay unit 22 to a level suitable for processing in subsequent stages, and an output from the luminance signal amplifier 23 After converting the horizontal synchronous signal separation unit 24 which separates the horizontal synchronous signal H sync from the luminance signal Y 'and the color burst signal output from the color signal processing unit 26 into square waves, the square wave and the by comparing the phase difference between the horizontal synchronizing signal (H sync) information having a pulse width corresponding to the phase difference A delay control unit 25 for outputting a positive or negative square wave, a color signal processing unit 26 for receiving the color signal C from the Y / C separation unit 21 and processing the color signal C, and the color signal processing unit 26. The oscillator 27 receives the output signal and oscillates the signal having a predetermined frequency (3,5MHZ), the output signal of the color signal processor 26 and the output signal of the oscillator 27, and the color difference signal RY, ( The demodulation section 28 for generating BY) and (GY), and the color difference signals RY, BY and GY output from the output signal of the luminance signal amplifying section 23 and the demodulation section 28. A matrix 29 for generating color signals R, G, and B and outputting them to the STI 30; A detailed description with reference to FIG. 5 is as follows.

복합영상신호(CV)가 Y/C분리부(21)에 공급되어 휘도신호(Y)와 색신호(C)가 분리된후 지연부(22)에 공급되어 소정시간 지연되고, 다시 휘도신호 증폭부(23)를 통해 이후의 단에서 처리하기에 적당한 레벨로 증폭되며, 상기 Y/C 분리부(21)에서 출력되는 색신호(C)는 색신호 처리부(26)에 공급되어 처리된다.The composite image signal CV is supplied to the Y / C separator 21, the luminance signal Y and the color signal C are separated, and then supplied to the delay unit 22 to be delayed for a predetermined time. Amplified to a level suitable for processing in the subsequent stage through 23, the color signal C output from the Y / C separation section 21 is supplied to the color signal processing section 26 for processing.

이때, 수평동기신호 분리부(24)는 상기 휘도신호 증폭부(23)에서 출력되는 휘도신호(Y˝)에서 제4도의 (나)와 같은 수평동기신호(Hsync)를 분리하여 이를 지연 제어부(25)의 일측입력으로 공급하고, 상기 색신호처리부(26)에서 출력되는 제5도의 (나)와 같은 컬러버스트신호(C')가 그 지연 제어부(25)의 타입력으로 공급된다.At this time, the horizontal synchronizing signal separator 24 separates the horizontal synchronizing signal H sync as shown in FIG. 4B from the luminance signal Y 'output from the luminance signal amplifying unit 23 and delays it. A color burst signal C 'such as (b) of FIG. 5 output from the color signal processing section 26 is supplied to the input of one side of 25, and is supplied as the type force of the delay control section 25.

이에따라 상기 지연 제어부(25)는 두 경로를 통해 입력된 신호를 비교하여 제5도의 (나)에서와 같은 총지연시간(tcomp)을 구하게 되는데, 그 지연시간(tcomp)은 실제의 지연시간 즉, 지연회로가 없을때의 지연시간(tdif)과 보상하고자 하는 지연시간(tD)의 합과 같다.Accordingly, the delay control unit 25 compares the signals input through the two paths to obtain a total delay time t comp as shown in FIG. 5B. The delay time t comp is the actual delay time. That is, the sum of the delay time t dif when there is no delay circuit and the delay time t D to be compensated for.

상기 지연시간(tD)은 시스템 동작시 어떠한 외부의 환경 및 내부의 환경에 의해 발생되는 지연 변화량으로서 상기 지연 제어부(25)는 그 지연량 변화를 검출하여 지연부(22)에 계속적으로 피드백시켜 줌으로써 휘도신호와 색신호가 정확하게 정합된다.The delay time t D is a delay change amount generated by an external environment and an internal environment during system operation, and the delay control unit 25 detects the change in the delay amount and continuously feeds it to the delay unit 22. By zooming, the luminance signal and the color signal are correctly matched.

한편, 제6도는 제3도에서 지연부(22), 수평동기신호 분리부(24), 지연제어부(25)의 일실시예를 보인 상세블록도로서 이를 참조하여 본 발명의 작용을 보다 구체적으로 설명하면 다음과 같다.6 is a detailed block diagram illustrating an embodiment of the delay unit 22, the horizontal synchronization signal separator 24, and the delay controller 25 in FIG. 3. The explanation is as follows.

휘도신호 증폭부(23)에서 출력되는 제7도의 (가)와 같은 휘도신호(Y˝)가 수평동기신호 분리부(24)의 리미터(24A)에서 출력되는 진폭이 제한되어 이로 부터 제7도의 (나)와 같은 수평동기신호가 출력되고 이는 인버터(24B)를 통해 반전 및 레벨업되어 제7도의 (다)와 같은 수평동기신호(Hsync)로 변환된 후 지연제어부(25)의 시퀸셜형 위상검출기(25C)의 타측입력(B)으로 공급된다.As shown in Fig. 7A of the luminance signal amplifying section 23, the amplitude of the luminance signal Y 'output from the limiter 24A of the horizontal synchronizing signal separation section 24 is limited, and therefore, A horizontal synchronous signal as shown in (b) is outputted, which is inverted and leveled up through the inverter 24B and converted into a horizontal synchronous signal (H sync ) as shown in (c) of FIG. It is supplied to the other input B of the phase detector 25C.

한편, 색신호 처리부(6)에서 출력되는 컬러버스트신호(C')는 지연제어부(25)의 적분기(25A)를 통해 적분된 후 슈미트트리거(25B)를 통해 구형파로 변환되어 상기 시퀀셜형 위상검출기(25C)의 타측입력(B)으로 공급된다.Meanwhile, the color burst signal C ′ output from the color signal processing unit 6 is integrated through the integrator 25A of the delay control unit 25, and then converted into a square wave through the Schmitt trigger 25B to convert the sequential phase detector ( It is supplied to the other side input B of 25C).

이에따라 상기 시퀀셜형 위상검출기(25C)는 상기의 경로를 통해 입력되는 제8도의 (가)와 같은 수평동기신호(Hsync)와 제8도의 (나)와 같은 구형파의 위상차를 비교하여 그 비교결과에 따라 제8도의 (다)와 같은 신호를 출력하게 된다.Accordingly, the sequential phase detector 25C compares the phase difference between the horizontal sync signal H sync as shown in FIG. 8 (a) and the square wave as shown in (b) in FIG. 8 inputted through the path. As a result, a signal as shown in FIG. 8C is output.

또한, 지연부(22)의 전하펌프(22A)는 상기 시퀀셜형 위상검출기(25C)에서 출력되는 구형파의 펄스폭 및 레벨에 상응되는 양의 전하를 펌핑하게 되고, 이렇게 발생된 신호는 저역필터(22B)를 통해 바렉터(VC)의 제어전압으로 공급되어 이의 정전용량을 가변시키게 된다.In addition, the charge pump 22A of the delay unit 22 pumps an amount of charge corresponding to the pulse width and level of the square wave output from the sequential phase detector 25C, and the generated signal is a low pass filter ( 22B) is supplied to the control voltage of the varactor VC to vary its capacitance.

결국, 휘도신호와 색신호의 위상차가 변화되는 것에 상응하여 상기 바렉터(VC)의 정전용량이 변화되게 함으로써 저항(R)과 바랙터(VC)로 구성된 적분기의 시정수가 변화되고, 이에따라 Y/C 분리부(21)에서 출력되는 휘도신호(Y)의 지연량이 자동적으로 조정되어 색신호와 정합이 이루어진다.As a result, the capacitance of the varactor VC changes according to the phase difference between the luminance signal and the color signal, thereby changing the time constant of the integrator composed of the resistor R and the varactor VC. The delay amount of the luminance signal Y output from the separator 21 is automatically adjusted to match the color signal.

이상에서 상세히 설명한 바와 같이, 본 발명은 시스템 동작시 어떠한 외부의 환경 및 내부의 환경에 의해 발생되는 지연 변화량을 자체적으로 검출하여 지연부에 피드백시켜 줌으로써 휘도신호와 색신호를 정확하게 매칭시킬 수 있는 효과가 있다.As described in detail above, the present invention has the effect of accurately matching the luminance signal and the color signal by detecting the amount of delay change generated by any external environment and internal environment and feeding it back to the delay unit. have.

Claims (1)

복합영상신호(CV)로부터 휘도신호(Y)와 색신호(C)를 분리하여 처리한 후 씨알티(30)에 디스플레이하는 영상신호 처리장치에 있어서, Y/C 분리부(21)에서 출력되는 휘도신호(Y)를 지연시켜 출력함에 있어서, 지연 제어부(25)에서 출력되는 출력폭에 상응되게 지연량을 가변시켜 상기 씨알티(30)측으로 출력하는 지연부(22)와; 상기 지연부(22)에서 출력되는 휘도신호(Y')를 이후의 단에서 처리하기에 적당한 레벨로 증폭하는 휘도신호 증폭부(23)와; 상기 휘도신호 증폭부(23)에서 출력되는 휘도신호(Y)로부터 수평동기신호(Hsync)를 분리해내는 수평동기신호 분리부(24)와; 색신호 처리부(26)에서 출력되는 컬러버스트신호를 구형파로 변화시킨 후 이 구형파와 상기 수평동기신호(Hsync)의 위상차를 비교하여 위상차에 상응되는 펄스폭을 갖는 정극성 또는 부극성의 구형파를 출력하는 지연제어부(25)를 포함하여 구성한 것을 특징으로 하는 텔레비젼 수상기의 휘도신호 지연제어회로.In the image signal processing apparatus for separating and processing the luminance signal (Y) and the color signal (C) from the composite image signal (CV) and then displaying them on the CT 30, the luminance output from the Y / C separation unit 21 A delay unit 22 for delaying and outputting a signal Y and varying a delay amount corresponding to an output width output from the delay control unit 25 and outputting the delay amount to the STI 30; A brightness signal amplifying section (23) for amplifying the brightness signal (Y ') output from the delay section (22) to a level suitable for processing in subsequent steps; A horizontal synchronous signal separator 24 for separating a horizontal synchronous signal H sync from the luminance signal Y output from the luminance signal amplifier 23; After converting the color burst signal output from the color signal processor 26 into a square wave, the phase difference between the square wave and the horizontal sync signal H sync is compared to output a positive or negative square wave having a pulse width corresponding to the phase difference. A luminance signal delay control circuit for a television receiver, comprising a delay control section (25).
KR1019930014755A 1993-07-30 1993-07-30 Control circuit for delaying brightness signal of t.v. KR960013303B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930014755A KR960013303B1 (en) 1993-07-30 1993-07-30 Control circuit for delaying brightness signal of t.v.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930014755A KR960013303B1 (en) 1993-07-30 1993-07-30 Control circuit for delaying brightness signal of t.v.

Publications (2)

Publication Number Publication Date
KR950004979A KR950004979A (en) 1995-02-18
KR960013303B1 true KR960013303B1 (en) 1996-10-02

Family

ID=19360489

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930014755A KR960013303B1 (en) 1993-07-30 1993-07-30 Control circuit for delaying brightness signal of t.v.

Country Status (1)

Country Link
KR (1) KR960013303B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102486194B1 (en) * 2021-10-15 2023-01-06 (주)디피아이 Toilet Cover Fabric Making Method Using Recycled PVC

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100498410B1 (en) * 1997-08-26 2005-09-02 삼성전자주식회사 Automatic correction device and method for delay characteristics during recording / playback of video signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102486194B1 (en) * 2021-10-15 2023-01-06 (주)디피아이 Toilet Cover Fabric Making Method Using Recycled PVC

Also Published As

Publication number Publication date
KR950004979A (en) 1995-02-18

Similar Documents

Publication Publication Date Title
EP0532354A1 (en) Clamp circuit for clamping video signal including synchronizing signal
KR100246911B1 (en) Auto compensation apparatus and method for delaying difference of between luminance and chrominance signal
JPS626389B2 (en)
KR960013303B1 (en) Control circuit for delaying brightness signal of t.v.
FI76231C (en) A video signal processing device
US4316214A (en) Keying signal generator with input control for false output immunity
JPH09182100A (en) Pll circuit
US4148068A (en) Television synchronizing signal separating circuit
US4337478A (en) Composite timing signal generator with predictable output level
JPH10191148A (en) Cable compensation device
JPH029505B2 (en)
US2841642A (en) Switching circuit for a color-television receiver
US3297821A (en) Contrast control apparatus for controlling the video signal of a television receiver
KR930004637B1 (en) Circuit arrangement for deriving a control signal
US5825222A (en) Horizontal synchronous circuits
JP2000078431A (en) Method and device for correcting amplitude of synchronizing signal of composite video signal
KR0122950Y1 (en) Sub-picture color signal detection stability circuit
KR970001901Y1 (en) Auto-control circuit for y/c signal delay time
KR100296897B1 (en) Luminance / Color Signal Separation Circuit
KR200146397Y1 (en) Sync. signal stabilization circuit
JPS643391B2 (en)
JPH0537953A (en) Comb filter
KR0139182B1 (en) Osd method and apparatus
SU437251A1 (en) Decoder
JPS5979686A (en) Extracting method of timing

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20000919

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee