KR970050780A - Color Vest Phase Distortion Detection Device - Google Patents

Color Vest Phase Distortion Detection Device Download PDF

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Publication number
KR970050780A
KR970050780A KR1019950051055A KR19950051055A KR970050780A KR 970050780 A KR970050780 A KR 970050780A KR 1019950051055 A KR1019950051055 A KR 1019950051055A KR 19950051055 A KR19950051055 A KR 19950051055A KR 970050780 A KR970050780 A KR 970050780A
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KR
South Korea
Prior art keywords
color burst
phase
signal
counter means
flip flop
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KR1019950051055A
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Korean (ko)
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KR0183777B1 (en
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홍순양
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김광호
삼성전자 주식회사
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Priority to KR1019950051055A priority Critical patent/KR0183777B1/en
Publication of KR970050780A publication Critical patent/KR970050780A/en
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Publication of KR0183777B1 publication Critical patent/KR0183777B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/02—Analogue recording or reproducing
    • G11B20/025—Error detection or correction

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

Abstract

본 발명은 칼라벌스트(color burst) 신호의 위상이 틀어졌을 때 원래의 정상적인 위상으로 복원해 주기 위한 칼라벌스트의 위상틀어짐 검출장치에 관한 것으로, 수평동기신호를 클럭으로 입력받아 칼라벌스트의 위상틀어짐의 검출구간을 설정하기 위한 소정의펄스를 발생하기 위한 카운터수단; 상기 카운터수단의 출력신호 및 아날로그 신호처리부에서 발생된 칼라벌스트 위상의 틀어짐 유무에 따라 발생되는 제어신호를 입력받아 상기 카운터수단을 클리어하기 위한 래치수단; 및 상기 카운터수단의 출력신호 및 상기 칼라벌스트 위상의 틀어짐 유무에 따라 발생되는 제어신호에 따라 칼라벌스트의 위상틀어짐을 검출하기 위한 검출수단을 포함함을 특징으로 한다.The present invention relates to a device for detecting phase shift of a color burst to restore the original phase when the color burst signal is out of phase. Counter means for generating a predetermined pulse for setting a detection section of phase distortion; Latch means for clearing the counter means by receiving the output signal of the counter means and a control signal generated according to whether or not the color burst phase generated by the analog signal processor is distorted; And detection means for detecting a phase shift of the color burst in accordance with a control signal generated according to the output signal of the counter means and the presence or absence of the color burst phase.

본 발명에 의하면, 칼라벌스트 신호의 위상을 보정하기 위하여 종래의 아날로그회로에서 디지탈회로를 이용하여 구현함으로써, 더욱 안정된 칼라시스템을 구현할 수 있다.According to the present invention, it is possible to implement a more stable color system by implementing a digital circuit in a conventional analog circuit to correct the phase of the color burst signal.

Description

칼라벌스트 위상틀어짐 검출장치Color Vest Phase Distortion Detection Device

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

제1도는 본 발명에 의한 칼라벌스트 위상틀어짐 방지장치의 구성블럭도.1 is a block diagram of a device for preventing a color burst phase distortion according to the present invention.

제2도는 제1도에 관련된 신호의 파형도.2 is a waveform diagram of a signal related to FIG.

Claims (4)

영상기록재생장치에서 칼라벌스트의 위상틀어짐을 검출하기 위한 장치에 있어서, 수평동기신호를 클럭으로 입력받아 칼라벌스트의 위상틀어짐의 검출구간을 설정하기 위한 소정의 펄스를 발생하기 위한 카운터수단; 상기 카운터수단의 출력신호 및 아날로그신호처리부에서 발생된 칼라벌스트 위상의 틀어짐 유무에 따라 발생되는 제어신호를 입력받아 상기 카운터수단을 클리어하기 위한 래치수단; 및 상기 카운터수단의 출력신호 및 상기 칼라벌스트 위상의 틀어짐 유무에 따라 발생되는 제어신호에 따라 칼라벌스트의 위상틀어짐을 검출하기 위한 검출수단을 포함함을 특징으로 하는 칼라벌스트 위상틀어짐 검출장치.An apparatus for detecting a phase shift of a color burst in a video recording / reproducing apparatus, comprising: counter means for generating a predetermined pulse for receiving a horizontal synchronization signal as a clock and setting a detection interval for the phase shift of the color burst; Latch means for clearing the counter means by receiving the output signal of the counter means and a control signal generated in accordance with the presence or absence of a color burst phase generated in the analog signal processor; And a detection means for detecting a phase shift of the color burst according to a control signal generated according to the output signal of the counter means and the presence or absence of the phase shift of the color burst phase. . 제1항에 있어서, 상기 카운터수단은 수평동기신호의 2주기를 기준으로 검출구간을 설정함을 특징으로 하는 칼라벌스트 위상틀어짐 검출장치.The apparatus of claim 1, wherein the counter means sets the detection section based on two periods of the horizontal synchronization signal. 제1항에 있어서, 상기 카운터수단은 제1플립플럽 및 제2플립플럽을 구비하고, 상기 제1 및 제2플립플럽의클럭단자에는수평동기신호의 반전신호가 입력되고, 상기 제1플립플럽의 데이타입력단자에는 상기 제2플립플럽의 출력단자가 연결되며, 상기 제1 및 제2플립플럽의 클리어단자에는 상기 래치수단에서 발생된 신호가 연결되며, 상기 제1플립플럽의 출력신호는 상기 래치수단으로 입력되고, 상기 제2플립플럽의 출력신호는 상기 검출수단으로 입력됨을 특징으로 하는 칼라벌스트 위상틀어짐 검출장치.2. The counter of claim 1, wherein the counter means includes a first flip flop and a second flip flop, and an inverted signal of a horizontal synchronization signal is input to the clock terminals of the first and second flip flops, and the first flip flop. The output terminal of the second flip flop is connected to the data input terminal of the signal, and the signal generated from the latch means is connected to the clear terminals of the first and second flip flops, and the output signal of the first flip flop is connected to the latch. And an output signal of the second flip flop is input to the detection means. 제1항에 있어서, 상기 검출수단은 상기 카운터수단의 출력신호 및 상기 칼라벌스트 위상의 틀어짐 유무에 따라 발생되는 제어신호가 입력되는 NAND게이트임을 특징으로 하는 칼라벌스트 위상틀어짐 검출장치.The apparatus of claim 1, wherein the detecting means is a NAND gate to which an output signal of the counter means and a control signal generated according to whether or not the color burst phase is misaligned are input. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950051055A 1995-12-16 1995-12-16 Detection apparatus of color burst phase twist KR0183777B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950051055A KR0183777B1 (en) 1995-12-16 1995-12-16 Detection apparatus of color burst phase twist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950051055A KR0183777B1 (en) 1995-12-16 1995-12-16 Detection apparatus of color burst phase twist

Publications (2)

Publication Number Publication Date
KR970050780A true KR970050780A (en) 1997-07-29
KR0183777B1 KR0183777B1 (en) 1999-04-15

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KR1019950051055A KR0183777B1 (en) 1995-12-16 1995-12-16 Detection apparatus of color burst phase twist

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