DE69703188T2 - Verzerrungskorrektionsschaltung - Google Patents

Verzerrungskorrektionsschaltung

Info

Publication number
DE69703188T2
DE69703188T2 DE69703188T DE69703188T DE69703188T2 DE 69703188 T2 DE69703188 T2 DE 69703188T2 DE 69703188 T DE69703188 T DE 69703188T DE 69703188 T DE69703188 T DE 69703188T DE 69703188 T2 DE69703188 T2 DE 69703188T2
Authority
DE
Germany
Prior art keywords
correction circuit
distortion correction
distortion
circuit
correction
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69703188T
Other languages
English (en)
Other versions
DE69703188D1 (de
Inventor
Kajiwara Mikio
Ochiai Masashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE69703188D1 publication Critical patent/DE69703188D1/de
Publication of DE69703188T2 publication Critical patent/DE69703188T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)
DE69703188T 1996-07-26 1997-07-23 Verzerrungskorrektionsschaltung Expired - Fee Related DE69703188T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19774996A JP3688399B2 (ja) 1996-07-26 1996-07-26 歪補正回路

Publications (2)

Publication Number Publication Date
DE69703188D1 DE69703188D1 (de) 2000-11-02
DE69703188T2 true DE69703188T2 (de) 2001-08-09

Family

ID=16379712

Family Applications (2)

Application Number Title Priority Date Filing Date
DE0821519T Pending DE821519T1 (de) 1996-07-26 1997-07-23 Verzerrungskorrektionsschaltung
DE69703188T Expired - Fee Related DE69703188T2 (de) 1996-07-26 1997-07-23 Verzerrungskorrektionsschaltung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE0821519T Pending DE821519T1 (de) 1996-07-26 1997-07-23 Verzerrungskorrektionsschaltung

Country Status (7)

Country Link
US (1) US6002454A (de)
EP (1) EP0821519B1 (de)
JP (1) JP3688399B2 (de)
KR (1) KR100276490B1 (de)
CN (1) CN1096791C (de)
DE (2) DE821519T1 (de)
TW (1) TW344932B (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191827B1 (en) * 1998-12-01 2001-02-20 Oplus Technologies Ltd. Electronic keystone correction for electronic devices with a visual display
US6496231B1 (en) * 1999-06-30 2002-12-17 Koninklijke Philips Electronics N.V. Method and apparatus for correcting convergence and geometry errors in display devices
US6433840B1 (en) * 1999-07-22 2002-08-13 Evans & Sutherland Computer Corporation Method and apparatus for multi-level image alignment
US20070127553A1 (en) * 1999-08-13 2007-06-07 Viasat, Inc. Code Reuse Multiple Access For Satellite Return Link
US6292235B1 (en) * 1999-09-29 2001-09-18 Thomson Licensing S.A. Distortion correction system with switchable digital filter
NO20000656A (no) * 2000-02-09 2001-07-09 Knut Krogstad Digital korreksjonsmodul for videoprojektor
US20040100421A1 (en) * 2000-04-05 2004-05-27 Webb James R. Method and apparatus for correcting errors in displays
JP2001333434A (ja) * 2000-05-19 2001-11-30 Sony Corp 画像処理装置および方法、並びに記録媒体
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
US7006255B2 (en) * 2001-03-29 2006-02-28 Sharp Laboratories Of America Adaptive image filtering based on a distance transform
US6977693B2 (en) * 2001-06-11 2005-12-20 Sun Microsystems, Inc. Networked video projector apparatus and method of projecting a video frame on a video projector
EP1278370A1 (de) * 2001-07-17 2003-01-22 Koninklijke Philips Electronics N.V. Vorrichtung zur Korrektur von geometrischen Defekten einer Kathodenstrahlröhre
JP3844075B2 (ja) * 2003-01-17 2006-11-08 セイコーエプソン株式会社 画像処理システム、プロジェクタ、プログラム、情報記憶媒体および画像処理方法
JP3871061B2 (ja) * 2003-03-25 2007-01-24 セイコーエプソン株式会社 画像処理システム、プロジェクタ、プログラム、情報記憶媒体および画像処理方法
WO2005029841A1 (en) * 2003-09-22 2005-03-31 Koninklijke Philips Electronics N.V. Display apparatus
CN100576874C (zh) * 2004-10-22 2009-12-30 康佳集团股份有限公司 矫正电子显示装置亮度不均的方法和电路
EP2103082A2 (de) * 2006-10-03 2009-09-23 ViaSat, Inc. Authentifizierung eines mehrdienstanbieters
JP4781229B2 (ja) * 2006-11-01 2011-09-28 キヤノン株式会社 歪曲収差補正装置、撮像装置、及び歪曲収差補正装置の制御方法
US7891818B2 (en) 2006-12-12 2011-02-22 Evans & Sutherland Computer Corporation System and method for aligning RGB light in a single modulator projector
FR2920939A1 (fr) * 2007-09-07 2009-03-13 St Microelectronics Sa Correction de deformation d'image
US8358317B2 (en) 2008-05-23 2013-01-22 Evans & Sutherland Computer Corporation System and method for displaying a planar image on a curved surface
US8702248B1 (en) 2008-06-11 2014-04-22 Evans & Sutherland Computer Corporation Projection method for reducing interpixel gaps on a viewing surface
US8077378B1 (en) 2008-11-12 2011-12-13 Evans & Sutherland Computer Corporation Calibration system and method for light modulation device
CN101771796B (zh) * 2008-12-29 2013-01-30 比亚迪股份有限公司 一种校正图像桶形失真的方法和装置
US9641826B1 (en) 2011-10-06 2017-05-02 Evans & Sutherland Computer Corporation System and method for displaying distant 3-D stereo on a dome surface
CN102724517B (zh) * 2012-05-16 2014-06-04 浙江大华技术股份有限公司 一种传输视频信号的方法、装置、系统和终端

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101926A (en) * 1976-03-19 1978-07-18 Rca Corporation Television synchronizing apparatus
US4600945A (en) * 1983-03-31 1986-07-15 Rca Corporation Digital video processing system with raster distortion correction
JPH07104656B2 (ja) * 1989-02-21 1995-11-13 株式会社東芝 水平偏向回路
US5041764A (en) * 1990-10-22 1991-08-20 Zenith Electronics Corporation Horizontal misconvergence correction system for color video display
DE69207266T2 (de) * 1991-05-31 1996-07-18 Philips Electronics Nv Bildwiedergaberöhre mit Konvergenzkorrekturanordnung
EP0589512B1 (de) * 1992-09-22 1998-08-05 Koninklijke Philips Electronics N.V. Schaltungsanordnung zur Korrektur der Bildverzerrung in einem Anzeigegerät
JP3222621B2 (ja) * 1993-05-07 2001-10-29 旭光学工業株式会社 画像信号入出力装置
JPH07131672A (ja) * 1993-10-28 1995-05-19 Mitsubishi Electric Corp ワイドアスペクトテレビジョン受像機
US5663615A (en) * 1994-10-20 1997-09-02 Hitachi, Ltd. Reciprocal deflection type CRT displaying apparatus
JPH0984035A (ja) * 1995-09-08 1997-03-28 Toshiba Corp ディジタルコンバーゼンス装置
EP0777198A1 (de) * 1995-11-30 1997-06-04 Victor Company Of Japan, Limited Bildverarbeitungsvorrichtung
US5784120A (en) * 1996-05-31 1998-07-21 Analog Devices, Inc. Video decoder adapted to compensate for time variations between successive horizontal/vertical synchronization pulses

Also Published As

Publication number Publication date
CN1096791C (zh) 2002-12-18
DE821519T1 (de) 1998-08-13
CN1175156A (zh) 1998-03-04
EP0821519A2 (de) 1998-01-28
KR100276490B1 (ko) 2000-12-15
TW344932B (en) 1998-11-11
EP0821519A3 (de) 1998-03-25
EP0821519B1 (de) 2000-09-27
JP3688399B2 (ja) 2005-08-24
JPH1042163A (ja) 1998-02-13
US6002454A (en) 1999-12-14
KR980013250A (ko) 1998-04-30
DE69703188D1 (de) 2000-11-02

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee