KR900013444A - 이미지 왜곡 보정용 수평편향 장치의 보정회로 - Google Patents

이미지 왜곡 보정용 수평편향 장치의 보정회로 Download PDF

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Publication number
KR900013444A
KR900013444A KR1019900002234A KR900002234A KR900013444A KR 900013444 A KR900013444 A KR 900013444A KR 1019900002234 A KR1019900002234 A KR 1019900002234A KR 900002234 A KR900002234 A KR 900002234A KR 900013444 A KR900013444 A KR 900013444A
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KR
South Korea
Prior art keywords
memory
clock
converter
generator
correction
Prior art date
Application number
KR1019900002234A
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English (en)
Other versions
KR930005366B1 (en
Inventor
나오히꼬 하라다
Original Assignee
아오이 죠이찌
가부시끼가이샤 도시바
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 아오이 죠이찌, 가부시끼가이샤 도시바 filed Critical 아오이 죠이찌
Publication of KR900013444A publication Critical patent/KR900013444A/ko
Application granted granted Critical
Publication of KR930005366B1 publication Critical patent/KR930005366B1/ko

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements
    • H04N3/2335—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements with calculating means
    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Television Scanning (AREA)

Abstract

내용 없음

Description

이미지 왜곡 보정용 수평편향 장치의 보정회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제7도는 본 발명의 한 예에 따른 보정회로를 나타내는 회로 블록도이다.
제8도는 제7도에 도시된 회로의 세부적인 회로 배치상태를 나타내는 회로 개요도이다.

Claims (4)

  1. 디지털 이미지 데이터의 1필드분을 순차적으로 폐치시키고 기억시키는 메모리(10), 메모리로부터 1필드 디지털 이미지 데이터를 공급받아 이 디지털 이미지 데이터를 음극선관(70)의 스크린상에 비임이 일정한 속도로 주사되게 하기 위해 사용되는 아날로그 신호로 변환시키는 D/A 변환기(50), 메모리와 D/A 변환기에 연결 되어서 메모리와 D/A 변환기에서 이미지 데이터 전달속도가 변화되게 하기 위해 클럭공급속도를 조절하는 클럭속도 변조부(30), 그리고 조절 장치를 통해 메모리와 D/A 변환기에 공급되는 클럭속도 데이터를 발생시키는 클럭속도 데이터 발생부(40)를 구성하고 있는 것을 특징으로 하는 이미지 왜곡 보정용 수편편향장치의 보정회로.
  2. 제1항에 있어서, 메모리는 디지털 이미지 데이터를 기억시키는 라인 메모리(20)를 포함하고 있는 것을 특징으로 하는 보정회로.
  3. 제1항에 있어서, 클럭속도 변조부는 클럭속도 데이터를 공급받고 반송파 발생기(303)에 의해 발생된 반송파 신호의 주파수를 변조시키는 주파수 변조회로(304)그리고 주파수가 주파수 변조회로에 의해 변조되는 반송파 신호를 아날로그 신호로 변환시켜서 그 아날로그 신호를 메모리에 공급시키는 D/A 변환기(305)를 포함하고 있는 것을 특징으로 하는 보정회로.
  4. 제1항에 있어서, 클럭속도 데이터 발생부는 기본 클럭발생기(401), 그리고 기본클럭발생기에 의해 클럭이 공급되고 클럭속도 메모리(301)에 기억될 어드레스 신호를 발생시키는 어드레스 신호 발생기(402)를 포함하고 있는 것을 특징으로 하는 보정회로
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR9002234A 1989-02-21 1990-02-21 Circuit for modifying image distortion in horizontality propensity device KR930005366B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1-040538 1989-02-21
JP1040538A JPH07104656B2 (ja) 1989-02-21 1989-02-21 水平偏向回路

Publications (2)

Publication Number Publication Date
KR900013444A true KR900013444A (ko) 1990-09-05
KR930005366B1 KR930005366B1 (en) 1993-06-19

Family

ID=12583231

Family Applications (1)

Application Number Title Priority Date Filing Date
KR9002234A KR930005366B1 (en) 1989-02-21 1990-02-21 Circuit for modifying image distortion in horizontality propensity device

Country Status (3)

Country Link
US (1) US4970442A (ko)
JP (1) JPH07104656B2 (ko)
KR (1) KR930005366B1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69320129T2 (de) * 1992-09-22 1999-03-11 Philips Electronics Nv Schaltungsanordnung zur Korrektur der Bildverzerrung in einem Anzeigegerät
EP0598439B1 (en) * 1992-11-17 1998-10-07 Koninklijke Philips Electronics N.V. Display device using scan velocity modulation
JP3688399B2 (ja) * 1996-07-26 2005-08-24 株式会社東芝 歪補正回路
JPH10336477A (ja) * 1997-06-02 1998-12-18 Nec Corp 偏向補正処理回路
JP2002112069A (ja) * 2000-07-25 2002-04-12 Matsushita Electric Ind Co Ltd 画像歪補正装置および画像歪補正方法
KR100666931B1 (ko) 2004-12-28 2007-01-10 주식회사 하이닉스반도체 반도체메모리소자
WO2012064537A2 (en) * 2010-11-09 2012-05-18 Rambus Inc. Using a stuttered clock signal to reduce self-induced voltage noise

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019093A (en) * 1975-10-09 1977-04-19 Gte Sylvania Incorporated Horizontal dynamic damper circuitry
US4171504A (en) * 1978-09-18 1979-10-16 Rockwell International Corporation Constant writing speed arc scan CRT display system
US4516058A (en) * 1981-05-11 1985-05-07 Rca Corporation Linearity corrected horizontal deflection circuit
US4468593A (en) * 1982-04-23 1984-08-28 Rca Corporation Horizontal drive and nonlinearity correction circuit
JPS6040032A (ja) * 1983-08-13 1985-03-02 小池　宗一 可動式不等像視測定用視標
US4612481A (en) * 1984-06-27 1986-09-16 Cpt Corporation Linearity correction circuit
EP0246339B1 (de) * 1986-05-17 1990-08-16 Deutsche ITT Industries GmbH Digitales Schaltungssystem für (Farb)fernsehempfänger mit Kathodenstrahlbildröhren

Also Published As

Publication number Publication date
US4970442A (en) 1990-11-13
JPH02219091A (ja) 1990-08-31
JPH07104656B2 (ja) 1995-11-13
KR930005366B1 (en) 1993-06-19

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