KR930015880A - Frequency Discrimination Vertical Dynamic Focus Circuit - Google Patents

Frequency Discrimination Vertical Dynamic Focus Circuit Download PDF

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Publication number
KR930015880A
KR930015880A KR1019910023680A KR910023680A KR930015880A KR 930015880 A KR930015880 A KR 930015880A KR 1019910023680 A KR1019910023680 A KR 1019910023680A KR 910023680 A KR910023680 A KR 910023680A KR 930015880 A KR930015880 A KR 930015880A
Authority
KR
South Korea
Prior art keywords
vertical
frequency
dynamic focus
mode
output
Prior art date
Application number
KR1019910023680A
Other languages
Korean (ko)
Other versions
KR940007991B1 (en
Inventor
최종룡
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910023680A priority Critical patent/KR940007991B1/en
Publication of KR930015880A publication Critical patent/KR930015880A/en
Application granted granted Critical
Publication of KR940007991B1 publication Critical patent/KR940007991B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/26—Modifications of scanning arrangements to improve focusing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

본 발명은 멀티 모드 모니터에 있어서, 주파수 판별 수직 다이나믹 포커스 회로에 관한 것으로, 종래에서는 수직 다이나믹 포커스 전압크기가 멀티 모드일 경우 각 모드별로 다르게 되어 디스플레이 화면의 포커스 상태가 일정하지 않고 어떠한 모드에서느 나쁘게 되는 문제점이 있었다.The present invention relates to a frequency discrimination vertical dynamic focus circuit in a multi-mode monitor. In the related art, when the vertical dynamic focus voltage is multi-mode, each mode is different for each mode, so that the display state is not constant and worse in any mode. There was a problem.

Description

주파수 판별 수직 다이나믹 포커스 회로Frequency Discrimination Vertical Dynamic Focus Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명의 주파수 판별 수직 다이나믹 포커스 회로도, 제4도는 본 발명에 따른 수직-주파수/전압의 특성 그래프, 제5도는 본 발명에 따른 아날로그 스위치 연결 특성표.3 is a frequency discriminating vertical dynamic focus circuit diagram of the present invention, FIG. 4 is a characteristic graph of vertical-frequency / voltage according to the present invention, and FIG. 5 is an analog switch connection table according to the present invention.

Claims (1)

수직주파수 및 수직 화면 사이즈 크기에 따른 수직출력부(1)의 출력신호를 입력받아 적분시켜 파라볼라 파형을 발생되게 하는 파라볼라 파형발생부(2)와, 이 파라볼라 파형에 의해 수직포커스부(4)의 수직 다이나믹 포커스 파형크기가 조정되게 반전 증폭하는 반전증폭부(3)와, 수직동기신호에 의한 주파수를 전압으로 변환하는 수직-주파수/전압변환기(5)와, 이 출력된 전압을 각각 설정된 전압(Va)(Vb)가 비교하여 출력하는 제1, 2 비교부(6)(7)와, 이 비교된 전압(A0)(A0)에 따라 수직주파수를 판별하여 설정된 각각의 가변저항(VR1-VR3)을 동작시켜서 상기 반전증폭부(3)의 출력 전압 크기를 각 모드에서 일정하게 해주는 아날로그 스위치부(8)로 구성된 것을 특징으로 하는 주파수 판별 수직 다이나믹 포커스회로.A parabolic waveform generator 2 for receiving and integrating the output signal of the vertical output unit 1 according to the vertical frequency and the size of the vertical screen size to generate a parabola waveform; An inverting amplifier (3) for inverting and amplifying the vertical dynamic focus waveform size, a vertical-frequency / voltage converter (5) for converting a frequency of the vertical synchronization signal into a voltage, and the output voltage (a Each of the variable resistors VR1-VR3 set by discriminating the vertical frequency according to the first and second comparators 6 and 7 which Va and Vb compare and output, and the compared voltages A0 and A0. And an analog switch unit (8) which makes the output voltage of the inverting amplifier unit (3) constant in each mode. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910023680A 1991-12-20 1991-12-20 Vertical dynamic focus circuit KR940007991B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910023680A KR940007991B1 (en) 1991-12-20 1991-12-20 Vertical dynamic focus circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910023680A KR940007991B1 (en) 1991-12-20 1991-12-20 Vertical dynamic focus circuit

Publications (2)

Publication Number Publication Date
KR930015880A true KR930015880A (en) 1993-07-24
KR940007991B1 KR940007991B1 (en) 1994-08-31

Family

ID=19325374

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910023680A KR940007991B1 (en) 1991-12-20 1991-12-20 Vertical dynamic focus circuit

Country Status (1)

Country Link
KR (1) KR940007991B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260080B1 (en) 1997-10-14 2001-07-10 Samsung Electronics Co., Ltd. System for improving signal quality between CPU and floppy disk drive in notebook computer utilizing pull-up device disposed between terminals connected to control signals and one of power supply potentials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260080B1 (en) 1997-10-14 2001-07-10 Samsung Electronics Co., Ltd. System for improving signal quality between CPU and floppy disk drive in notebook computer utilizing pull-up device disposed between terminals connected to control signals and one of power supply potentials

Also Published As

Publication number Publication date
KR940007991B1 (en) 1994-08-31

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