KR950004979A - Luminance Signal Delay Control Circuit of Television Receiver - Google Patents

Luminance Signal Delay Control Circuit of Television Receiver Download PDF

Info

Publication number
KR950004979A
KR950004979A KR1019930014755A KR930014755A KR950004979A KR 950004979 A KR950004979 A KR 950004979A KR 1019930014755 A KR1019930014755 A KR 1019930014755A KR 930014755 A KR930014755 A KR 930014755A KR 950004979 A KR950004979 A KR 950004979A
Authority
KR
South Korea
Prior art keywords
signal
output
color
delay
unit
Prior art date
Application number
KR1019930014755A
Other languages
Korean (ko)
Other versions
KR960013303B1 (en
Inventor
이용원
Original Assignee
문정환
금성일렉트론 주식회사
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 문정환, 금성일렉트론 주식회사 filed Critical 문정환
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

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness

Landscapes

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

Abstract

본 발명은 텔레비젼 수상기에서 휘도신호와 색신호의 정합을 맞추는 기술에 관한 것으로, 종래의 회로에 있어서는 색신호와 휘도신호의 지연시간 차분을 미리 설정하여 그 설정된 값을 고정시켜 놓게 되므로 동작온도, 휘도신호의 주파수 변화등의 요인에 의해 두 신호간의 지연변호가 발생될 때 이에 능동적으로 대응할 수 없는 문제점이 있었는 바, 본 발명은 이를 해결하기 위하여 시스템 동작시 어떠한 외부의 환경 및 내부의 환경에 의해 발생되는 지연 변화량을 자체적으로 검출하여 지연부에 피드백시켜 지연시간(tc)가 “0”가 되게 함으로써 휘도신호와 색신호를 정확하게 매칭시킬 수 있게한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for matching luminance signals with color signals in a television receiver. In the conventional circuit, the delay time difference between a color signal and a luminance signal is set in advance and the set value is fixed. When there is a problem that the delay between the two signals caused by a change in frequency, such as there is a problem that can not be actively responded to the present invention, in order to solve this problem, the present invention is a delay caused by any external environment and internal environment during system operation The amount of change is detected by itself and fed back to the delay unit so that the delay time t c becomes " 0 " to accurately match the luminance signal and the color signal.

Description

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

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 3 도는 본 발명 텔레비젼 수상기의 휘도신호 지연 제어 블록도, 제 4 도의 (가)는 수평쉬선신호의 파형도이고, (나)는 수평동기신호의 파형도, 제 5 도의 (가)는 실제의 지연량을 보인 영상신호의 파형도이고, (나)는 지연시간이 발생된 경우의 컬러버스트신호의 파형도.FIG. 3 is a block diagram of a luminance signal delay control of the television receiver of the present invention, (a) of FIG. 4 is a waveform diagram of a horizontal line signal, (b) is a waveform diagram of a horizontal synchronous signal, and (a) of FIG. A waveform diagram of a video signal showing a delay amount, and (b) is a waveform diagram of a color burst signal when a delay time occurs.

Claims (1)

지연 제어부(25)의 제어를 받아 Y/C분리부(21)에서 출력되는 휘도신호(Y)를 지연시켜 출력하는 지연부(22)와, 상기 지여부(22)에서 출력되는 휘도신호(Y)를 이후의 단에서 처리하기에 적당한 레벨로 증폭하는 휘도신호 즈폭부(23)와, 상기 휘도신호 증폭부(2)의 출력신호에서 수평동기신호(Hsync)를 분리해내는 수평동기신호 분리부(24)와, 상기 수평동기신호 분리부(24)에서 출력되는 수평동기신호(Hsync)와 색신호 처리부926)에서 출력되는 컬러버스트신호를 근거로하여 보상하고자 하는 지연시간(tc)을 구하고, 그 지연시간(tc)이 “0”이 되도록 지연부(22)를 제어하는 지연 제어부(25)와, 상기 색신호 처리부(26)의 출력신호를 공급받아 소정 주파수의 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 것을 특징으로 하는 텔레비젼 수상기 휘도신호 지연 제어회로.Under the control of the delay control unit 25, the delay unit 22 for delaying and outputting the luminance signal Y output from the Y / C separation unit 21, and the luminance signal Y output from the donor unit 22. ) And a horizontal synchronous signal separation unit for separating the horizontal synchronous signal (H sync ) from the output signal of the luminance signal amplifying unit (2) for amplifying the signal to a level suitable for processing in a subsequent stage. And a delay time t c to be compensated based on the horizontal sync signal H sync output from the horizontal sync signal separator 24 and the color burst signal output from the color signal processor 926. A delay control unit 25 for controlling the delay unit 22 so that the delay time t c is “0”, and an oscillator for oscillating a signal having a predetermined frequency by receiving the output signal of the color signal processing unit 26. And the color difference signal received from the output signal of the color signal processing section 26 and the output signal of the oscillation section 27. A demodulator 28 for generating (RY), (BY), and (GY), an output signal of the luminance signal amplifier 23, and a color difference signal RY, (BY) output from the demodulator 28; And a matrix (29) for receiving (GY) and generating color signals (R), (G) and (B) and outputting them to the STI (30). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
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 true KR950004979A (en) 1995-02-18
KR960013303B1 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
KR100498410B1 (en) * 1997-08-26 2005-09-02 삼성전자주식회사 Automatic correction device and method for delay characteristics during recording / playback of video signal

Families Citing this family (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

Cited By (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

Also Published As

Publication number Publication date
KR960013303B1 (en) 1996-10-02

Similar Documents

Publication Publication Date Title
GB1431378A (en) Colour information translating systems
US3673320A (en) Television apparatus responsive to a transmitted color reference signal
US4183050A (en) Clamping circuit for color television signals
KR860003734A (en) TV receiver with character generator
MY111094A (en) Three-dimensional motion detector
FI76231C (en) A video signal processing device
KR950004979A (en) Luminance Signal Delay Control Circuit of Television Receiver
KR850002370A (en) TV receiver
US4316214A (en) Keying signal generator with input control for false output immunity
JPS58213586A (en) Phase synthesis device
US4216493A (en) Chrominance signal processing circuit in color television receiver
US4337478A (en) Composite timing signal generator with predictable output level
US2938950A (en) Automatic gain control circuits for television signal amplifiers
US4611240A (en) Chrominance processor control system
JP2531943B2 (en) Hanging dot detector
JPS5752268A (en) Horizontal synchronizing circuit
JPH11252584A (en) Signal processing circuit for television receiver
JPH05276538A (en) Pal system chrominance signal processing circuit
US2891104A (en) Color burst separation system
US3717726A (en) Noise immune color killer circuit
KR950010130Y1 (en) Horizontal word position correcting circuit in tv screen
KR930001328Y1 (en) Picture quality improving circuit of vcr using color signal muting
KR970068684A (en) Y / C Separating Circuit
JPH0149075B2 (en)
JPH0644220Y2 (en) Luminance / Chromaticity separation circuit

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