KR930020946A - Keystone Correction Circuit of Monitor - Google Patents

Keystone Correction Circuit of Monitor Download PDF

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Publication number
KR930020946A
KR930020946A KR1019920003614A KR920003614A KR930020946A KR 930020946 A KR930020946 A KR 930020946A KR 1019920003614 A KR1019920003614 A KR 1019920003614A KR 920003614 A KR920003614 A KR 920003614A KR 930020946 A KR930020946 A KR 930020946A
Authority
KR
South Korea
Prior art keywords
monitor
vertical
correction circuit
keystone correction
microprocessor
Prior art date
Application number
KR1019920003614A
Other languages
Korean (ko)
Inventor
김상근
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.)
Filing date
Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019920003614A priority Critical patent/KR930020946A/en
Publication of KR930020946A publication Critical patent/KR930020946A/en

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Abstract

이 발명은 모니터의 키스톤을 마이크로 프로세서를 이용하여 조정할 수 있도록 한 것으로서, 수직파라볼라파를 형성하는 OP 앰프회로에 마이크로 프로세서의 콘트롤에 의해 수직톱니파의 DC 레벨을 가변시켜 수평폭 제어회로에 입력되는 수직파라볼라피를 정형시키도록 하였다.The present invention allows a keystone of a monitor to be adjusted using a microprocessor. The vertical input of the vertical sawtooth wave by varying the DC level of the sawtooth wave under the control of the microprocessor is performed on the OP amplifier circuit forming the vertical parabola wave. Parabola was shaped.

Description

모니터의 키스톤 보정회로Keystone Correction Circuit of Monitor

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

제2도는 이 발명에 따른 키스톤 보정회로도.2 is a keystone correction circuit diagram according to the present invention.

제3도는 제2도의 각부 동작파형도.3 is an operating waveform diagram of each part of FIG.

제4도의 (가), (나)는 수직톱니피의 DC레벨과 화면과의 관계를 나타낸 파형도이다.4A and 4B are waveform diagrams showing the relationship between the DC level of the vertical sawtooth and the screen.

Claims (1)

수직출력의 수직톱니파와 기준전압을 비교하여 수평폭 제어회로에 파라볼라파를 출력하는 OP 앰프를 구비한 모니터의 키스톤 보정회로에 있어서, 상기 OP앰프 (U1)의 수직톱니피가 입력되는 반전입력단에는 수직블랭킹신호에 의해 스위칭되어 적분용 콘덴서의 방전통로를 형성하는 스위치회로(20)와, 마이크로 프로세서의 콘트롤에 의한 신호를 상기 OP 앰프 (U1)의 반전입력단에 인가시키는 D/A 콘버터(30)가 더 구비된 것을 특징으로 하는 모니터의 키스톤 보정회로.In a keystone correction circuit of a monitor having an op amp that compares a vertical sawtooth wave of a vertical output and a reference voltage and outputs a parabola wave to a horizontal width control circuit, the inverting input terminal into which the vertical sawtooth of the op amp U1 is input is input. A switch circuit 20 which is switched by a vertical blanking signal to form a discharge passage of the integrating capacitor, and a D / A converter 30 which applies a signal controlled by a microprocessor to the inverting input terminal of the OP amplifier U1. Keystone correction circuit of the monitor, characterized in that is further provided. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920003614A 1992-03-05 1992-03-05 Keystone Correction Circuit of Monitor KR930020946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920003614A KR930020946A (en) 1992-03-05 1992-03-05 Keystone Correction Circuit of Monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920003614A KR930020946A (en) 1992-03-05 1992-03-05 Keystone Correction Circuit of Monitor

Publications (1)

Publication Number Publication Date
KR930020946A true KR930020946A (en) 1993-10-20

Family

ID=67257227

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920003614A KR930020946A (en) 1992-03-05 1992-03-05 Keystone Correction Circuit of Monitor

Country Status (1)

Country Link
KR (1) KR930020946A (en)

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