KR930003763A - Synchronous Clock Generation Circuit of Color Image Processing System - Google Patents

Synchronous Clock Generation Circuit of Color Image Processing System Download PDF

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Publication number
KR930003763A
KR930003763A KR1019910012737A KR910012737A KR930003763A KR 930003763 A KR930003763 A KR 930003763A KR 1019910012737 A KR1019910012737 A KR 1019910012737A KR 910012737 A KR910012737 A KR 910012737A KR 930003763 A KR930003763 A KR 930003763A
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KR
South Korea
Prior art keywords
clock
signal
color difference
horizontal synchronization
image processing
Prior art date
Application number
KR1019910012737A
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Korean (ko)
Inventor
이영수
박계호
Original Assignee
정용문
삼성전자 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.)
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Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019910012737A priority Critical patent/KR930003763A/en
Publication of KR930003763A publication Critical patent/KR930003763A/en

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Abstract

내용 없음.No content.

Description

칼라 영상처리 시스템의 동기 클럭 발생 회로Synchronous Clock Generation Circuit of Color Image Processing System

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

제1도는 영상처리 시스템의 구성도,1 is a configuration diagram of an image processing system;

제3도는 본 발명에 따른 영상처리 입력부의 구성도,3 is a configuration diagram of an image processing input unit according to the present invention;

제4도는 클럭 발생부의 출력 파형도,4 is an output waveform diagram of a clock generator;

제5도는 제3도 각부의 동작 파형도.5 is an operational waveform diagram of each part of FIG.

Claims (2)

칼라 영상처리 시스템의 입력 회로에 있어서, 영상신호로 부터 휘도신호 및 색차신호를 분리하고, 수평동기 신호를 추출하며, 시스템 클럭을 발생하는 영상신호 발생부와, 상기 수평동기 신호 및 클럭을 수신하며, 상기 수평동기 신호발생 시점에서 상기 시스템 클럭을 분주하여 영상신호에 동기된 제2클럭 및 제3클럭을 발생하는 클럭발생부와, 상기 휘도신호를 입력하며, 상기 제2클럭으로 휘도신호를 샘플링하여 비디오 처리부로 출력하는 휘도데이타 변환부와, 상기 색차신호를 입력하며, 상기 제3클럭으로 색차신호를 샘플링하여 비디오 처리부로 출력하는 색차 데이타 변환부로 구성된 것을 특징으로 하는 칼라 열상처리 시스템의 동기클럭 발생회로.An input circuit of a color image processing system, comprising: an image signal generator for separating a luminance signal and a color difference signal from an image signal, extracting a horizontal synchronization signal, and generating a system clock, and receiving the horizontal synchronization signal and a clock; And a clock generator for dividing the system clock at the time of generating the horizontal synchronization signal to generate a second clock and a third clock synchronized with an image signal, inputting the luminance signal, and sampling the luminance signal with the second clock. And a luminance data converter for inputting the color difference signal to the video processor and a color difference data converter for sampling the color difference signal with the third clock and outputting the color difference signal to the video processor. Generating circuit. 제1항에 있어서, 클럭 발생부가 상기 수평동기 신호를 데이타로 입력하고, 상기 시스템 클럭을 클럭단자로 수신하여 반전 출력하는 플립플롭과, 상기 플립플롭의 출력과 수평동기 신호를 논리합하여 수평동기 신호의 발생 시점에서 리세트 신호를 발생하는 게이트와, 상기 게이트에서 리세트 신호할생시 초기화되며, 상기 시스템 클럭을 분주 클럭으로 수신하여 2분주의 상기 제2클럭 및 4분주의 제3클럭을 1수평 주기로 발생하는 카운터로 구성된 것을 특징으로 하는 칼라 영상처리 시스템의 동기 클럭발생 회로.The horizontal synchronization signal of claim 1, wherein a clock generator inputs the horizontal synchronization signal as data, receives the system clock as a clock terminal, and inverts and outputs the horizontal clock signal. Is initialized when a reset signal is generated at the time of occurrence of the reset signal, and when the reset signal is generated at the gate, the system clock is received as the divided clock and the second clock of the second division and the third clock of the fourth division are horizontal. A synchronous clock generation circuit of a color image processing system, characterized by comprising a counter that occurs at periodic intervals. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910012737A 1991-07-24 1991-07-24 Synchronous Clock Generation Circuit of Color Image Processing System KR930003763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910012737A KR930003763A (en) 1991-07-24 1991-07-24 Synchronous Clock Generation Circuit of Color Image Processing System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910012737A KR930003763A (en) 1991-07-24 1991-07-24 Synchronous Clock Generation Circuit of Color Image Processing System

Publications (1)

Publication Number Publication Date
KR930003763A true KR930003763A (en) 1993-02-24

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Application Number Title Priority Date Filing Date
KR1019910012737A KR930003763A (en) 1991-07-24 1991-07-24 Synchronous Clock Generation Circuit of Color Image Processing System

Country Status (1)

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KR (1) KR930003763A (en)

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