HK25895A - Apparatus for the geometrical adjustment of a video projector - Google Patents

Apparatus for the geometrical adjustment of a video projector

Info

Publication number
HK25895A
HK25895A HK25895A HK25895A HK25895A HK 25895 A HK25895 A HK 25895A HK 25895 A HK25895 A HK 25895A HK 25895 A HK25895 A HK 25895A HK 25895 A HK25895 A HK 25895A
Authority
HK
Hong Kong
Prior art keywords
video projector
geometrical adjustment
geometrical
adjustment
projector
Prior art date
Application number
HK25895A
Other languages
English (en)
Inventor
Hossein Ahmari
Joseph Colineau
Original Assignee
Thomson Television Angers
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 Thomson Television Angers filed Critical Thomson Television Angers
Publication of HK25895A publication Critical patent/HK25895A/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/28—Arrangements for convergence or focusing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Details Of Television Scanning (AREA)
HK25895A 1985-03-15 1995-02-23 Apparatus for the geometrical adjustment of a video projector HK25895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8503901A FR2579051B1 (fr) 1985-03-15 1985-03-15 Dispositif de reglage de convergence pour videoprojecteur

Publications (1)

Publication Number Publication Date
HK25895A true HK25895A (en) 1995-03-03

Family

ID=9317260

Family Applications (2)

Application Number Title Priority Date Filing Date
HK25895A HK25895A (en) 1985-03-15 1995-02-23 Apparatus for the geometrical adjustment of a video projector
HK83496A HK83496A (en) 1985-03-15 1996-05-09 Convergence apparatus for an image projector

Family Applications After (1)

Application Number Title Priority Date Filing Date
HK83496A HK83496A (en) 1985-03-15 1996-05-09 Convergence apparatus for an image projector

Country Status (8)

Country Link
US (2) US4706115A (de)
EP (2) EP0195711B1 (de)
JP (2) JP2578734B2 (de)
DE (2) DE3674611D1 (de)
FR (1) FR2579051B1 (de)
HK (2) HK25895A (de)
IN (1) IN170206B (de)
SG (1) SG11992G (de)

Families Citing this family (60)

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FR2579051B1 (fr) * 1985-03-15 1988-06-24 Loire Electronique Dispositif de reglage de convergence pour videoprojecteur
US4687973A (en) * 1986-07-09 1987-08-18 Electronic Image Systems, Inc. Digital waveform generator
US4835602A (en) * 1987-08-27 1989-05-30 North American Philips Corporation Color projection television system with apparatus for correcting misconvergence and misgeometry which calculates coefficients of equations representing deflection correction waveforms
DE3732002A1 (de) * 1987-09-23 1989-04-06 Gerald Dipl Phys Meyer Farbfernsehprojektionseinrichtung mit selbsttaetiger korrektur von bildgeometrie und farbkonvergenz
JP2608908B2 (ja) * 1988-01-28 1997-05-14 株式会社日立製作所 デイジタルコンバーゼンス補正装置
JP2714023B2 (ja) * 1988-01-29 1998-02-16 株式会社日立製作所 画像表示装置
US4871948A (en) * 1988-11-08 1989-10-03 Honeywell Inc. Memory mapped deflection correction system
US4999703A (en) * 1988-12-23 1991-03-12 Hughes Aircraft Company Automatic image correction method and apparatus for projectors utilizing cathode ray tubes
US4951131A (en) * 1989-02-21 1990-08-21 North American Philips Corp. Remote control for convergence of projection television
US4962428A (en) * 1989-04-20 1990-10-09 Motorola, Inc. Multistandard OSD in a TV receiver including display positioning
US4962427A (en) * 1989-04-20 1990-10-09 Motorola Inc. TV receiver including multistandard OSD
DE3931154A1 (de) * 1989-09-19 1991-03-28 Thomson Brandt Gmbh Einrichtung zur rasterkorrektur in einem fernsehgeraet
EP0420568B1 (de) * 1989-09-28 1996-02-28 Matsushita Electric Industrial Co., Ltd. Digitale Konvergenzvorrichtung
DE3936787A1 (de) * 1989-11-04 1991-05-08 Thomson Brandt Gmbh Einrichtung zur rasterkorrektur in einem fernsehgeraet
US5020116A (en) * 1989-12-13 1991-05-28 Hughes Aircraft Company Image registration method and apparatus
US5241281A (en) * 1990-03-19 1993-08-31 Capetronic Group Ltd. Microprocessor controlled monitor
DE4016886A1 (de) * 1990-05-25 1991-11-28 Thomson Brandt Gmbh Einrichtung zur rasterkorrektur in einem fernsehgeraet
JP2653899B2 (ja) * 1990-06-07 1997-09-17 松下電器産業株式会社 画像補正装置
IT1240382B (it) * 1990-07-06 1993-12-10 Seleco Spa Dispositivo generatore di segnali di convergenza per display a colori
US5159436A (en) * 1991-05-02 1992-10-27 Cactus Computers, Inc. Technique for detecting color misregistration and misconvergence in video color displays and cameras
DE69222910T2 (de) * 1991-08-30 1998-06-10 Hitachi Ltd Digitale Bildkorrektureinrichtung
FI91475C (fi) * 1991-10-31 1994-06-27 Salcomp Oy Menetelmä ja piiri värikuvaputken dynaamisen konvergenssin säätöjännitteiden muodostamiseksi
FR2685518B1 (fr) * 1991-12-23 1994-02-04 Thomson Csf Circuit d'horloge pour systeme de lecture d'informations sequentielles.
JP3050986B2 (ja) * 1992-02-26 2000-06-12 株式会社日立製作所 ディジタルコンバーゼンス補正装置及びこれを用いた画像表示装置並びにコンバーゼンス補正データ作成方法及び装置
FR2689293B1 (fr) * 1992-03-27 1994-05-13 Thomson Csf Dispositif de lecture d'un ensemble d'elements resistifs.
US5345262A (en) * 1992-07-31 1994-09-06 Hughes-Jvc Technology Corporation Automatic convergence system for color video projector
US5369450A (en) * 1993-06-01 1994-11-29 The Walt Disney Company Electronic and computational correction of chromatic aberration associated with an optical system used to view a color video display
KR0165274B1 (ko) * 1993-07-30 1999-03-20 김광호 디지탈 컨버젼스 보정회로
DE4326899C2 (de) * 1993-08-11 2002-03-21 Thomson Brandt Gmbh Projektions-Fernseheinrichtung
KR0127319B1 (ko) * 1994-03-07 1997-12-29 구자홍 멀티 모드의 디지탈 콘버젼스 보정 방법
JP3520551B2 (ja) * 1994-03-22 2004-04-19 ソニー株式会社 電子機器及び映像表示装置
GB9405799D0 (en) * 1994-03-24 1994-05-11 Thomson Consumer Electronics Shaped parabolic correction waveform for curved face plate display tube
US5444338A (en) * 1994-05-11 1995-08-22 Thomson Consumer Electronics, Inc. Left and right raster correction
US5847777A (en) * 1994-05-11 1998-12-08 George; John Barrett Right-edge differential error convergence correction
US5504521A (en) * 1994-06-13 1996-04-02 Display Laboratories, Inc. Method and apparatus for making corrections in a video monitor during horizontal scan
US6052146A (en) * 1994-06-13 2000-04-18 Display Laboratories, Inc. Alignment of a video monitor using an on-screen display chip and a gain matrix table
US5510833A (en) * 1994-06-13 1996-04-23 Display Laboratories Inc. Method and apparatus for transforming coordinate systems in an automated video monitor alignment system
JP3513669B2 (ja) * 1994-07-06 2004-03-31 三菱電機株式会社 偏向歪補正回路
JPH09507988A (ja) * 1994-11-02 1997-08-12 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 波形発生
US5528112A (en) * 1994-12-08 1996-06-18 Thomson Consumer Electronics, Inc. Deflection correction signal generator
US5648703A (en) * 1994-12-08 1997-07-15 Thomson Consumer Electronics, Inc. Deflection correction signal timing
FR2735269B1 (fr) * 1995-06-06 1997-07-25 Thomson Csf Tete d'enregistrement/lecture matricielle a structure zigzag
US5764311A (en) * 1995-11-30 1998-06-09 Victor Company Of Japan, Ltd. Image processing apparatus
US5739870A (en) * 1996-03-11 1998-04-14 Display Laboratories, Inc. Math engine for generating font gradients
US6014168A (en) * 1996-04-26 2000-01-11 Display Laboratories, Inc. Screen mapping of a cathode ray tube
US5896170A (en) * 1996-07-02 1999-04-20 Display Laboratories, Inc. Dynamic alignment of cathode ray tube rasters
JPH10126799A (ja) * 1996-10-23 1998-05-15 Nec Corp コンバージェンス調整方法及びコンバージェンス調整回路
US5969486A (en) * 1997-01-16 1999-10-19 Display Laboratories, Inc. Detecting horizontal blanking time in cathode ray tube devices
US6285397B1 (en) 1997-01-16 2001-09-04 Display Laboratories, Inc. Alignment of cathode ray tube video displays using a host computer processor
US6437829B1 (en) 1997-01-16 2002-08-20 Display Laboratories, Inc. Alignment of cathode ray tube displays using a video graphics controller
US6281950B1 (en) 1997-06-16 2001-08-28 Display Laboratories, Inc. High speed digital zone control
KR200172693Y1 (ko) * 1997-07-31 2000-03-02 윤종용 래스터의 수평 위치 조절회로
US6583814B1 (en) * 1997-08-19 2003-06-24 Thomson Licensing Sa System for correction of convergence in a television device related application
DE19835803A1 (de) * 1998-08-07 2000-02-10 Thomson Brandt Gmbh Verfahren zur Konvergenzkorrektur in einem Fernsehgerät
KR100303656B1 (ko) * 1999-01-26 2001-09-26 윤종용 프로젝션 텔레비전의 컨버젼스 보정 방법 및 그 장치
JP2000330201A (ja) * 1999-03-17 2000-11-30 Fujitsu Ltd 投写型画像表示装置
KR100626461B1 (ko) * 2004-02-12 2006-09-20 엘지전자 주식회사 영상표시기기의 컨버전스 시스템
JP4929362B2 (ja) * 2010-02-12 2012-05-09 株式会社東芝 電子機器、画像表示システム、および画像表示方法
JP6897191B2 (ja) * 2017-03-17 2021-06-30 セイコーエプソン株式会社 プロジェクターおよびプロジェクターの制御方法
CN111918043B (zh) * 2019-05-10 2022-04-15 中强光电股份有限公司 投影系统、投影画面调整方法以及投影机

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US3943279A (en) * 1974-09-23 1976-03-09 Aeronutronic Ford Corporation Digital convergence of multiple image projectors
SE427063B (sv) * 1979-06-08 1983-02-28 Stal Refrigeration Ab Kompressor av rotationstyp med varierbart inbyggt volymsforhallande
US4309723A (en) * 1980-04-14 1982-01-05 Ampex Corporation Apparatus and method for registration and shading of color television cameras
JPS6021910B2 (ja) * 1980-09-22 1985-05-30 井関農機株式会社 コンバイン等のクロ−ラ−の転輪の支受装置
JPS57164407A (en) * 1981-03-31 1982-10-09 Arupain Kk Pll oscillating circuit
US4395662A (en) * 1981-05-27 1983-07-26 General Electric Company Correction circuits for projection television
JPS57212492A (en) * 1981-06-24 1982-12-27 Hitachi Ltd Color diviation corrector for color braun tube
JPS587991A (ja) * 1981-07-08 1983-01-17 Sony Corp 多管式カラ−カメラのレジストレ−シヨン調整回路
JPS5856590A (ja) * 1981-09-30 1983-04-04 Nec Home Electronics Ltd 投射型テレビジヨン受像機
NL8104947A (nl) * 1981-11-02 1983-06-01 Philips Nv Televisie lijnafbuigschakeling.
JPS58101586A (ja) * 1981-12-14 1983-06-16 Sony Corp コンバ−ゼンス補正回路
US4422019A (en) * 1982-07-12 1983-12-20 Tektronix, Inc. Apparatus for providing vertical as well as horizontal smoothing of convergence correction signals in a digital convergence system
US4422020A (en) * 1982-07-21 1983-12-20 Zenith Radio Corporation Vertical image correction for projection TV
JPS59167194A (ja) * 1983-03-11 1984-09-20 Hitachi Ltd カラ−・テレビジヨン・カメラのレジストレ−シヨン補正回路
JPS6178294A (ja) * 1984-09-25 1986-04-21 Sony Corp デイジタルコンバ−ジエンス補正装置
FR2579051B1 (fr) * 1985-03-15 1988-06-24 Loire Electronique Dispositif de reglage de convergence pour videoprojecteur
US4673847A (en) * 1985-04-12 1987-06-16 Hazeltine Corporation Color monitor with improved digital convergence

Also Published As

Publication number Publication date
SG11992G (en) 1992-04-16
HK83496A (en) 1996-05-17
DE3674611D1 (de) 1990-11-08
EP0194944B1 (de) 1990-05-23
EP0195711B1 (de) 1990-10-03
FR2579051B1 (fr) 1988-06-24
JP2578734B2 (ja) 1997-02-05
JPS61269589A (ja) 1986-11-28
EP0195711A1 (de) 1986-09-24
FR2579051A1 (fr) 1986-09-19
US4816908A (en) 1989-03-28
IN170206B (de) 1992-02-29
US4706115A (en) 1987-11-10
EP0194944A1 (de) 1986-09-17
JPS61269592A (ja) 1986-11-28
JP2577329B2 (ja) 1997-01-29
DE3671596D1 (de) 1990-06-28

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)