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FI67646C - Digitalt konvergeringsfoerfarande foer katodstraolsfaergbildroer - Google Patents

Digitalt konvergeringsfoerfarande foer katodstraolsfaergbildroer Download PDF

Info

Publication number
FI67646C
FI67646C FI773913A FI773913A FI67646C FI 67646 C FI67646 C FI 67646C FI 773913 A FI773913 A FI 773913A FI 773913 A FI773913 A FI 773913A FI 67646 C FI67646 C FI 67646C
Authority
FI
Finland
Prior art keywords
signal
digital
ray tube
correction
control device
Prior art date
Application number
FI773913A
Other languages
English (en)
Finnish (fi)
Other versions
FI67646B (fi
FI773913A7 (fi
Inventor
Michael Henry Hallett
Brian Raymond Sowter
Michael James Heneghan
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of FI773913A7 publication Critical patent/FI773913A7/fi
Publication of FI67646B publication Critical patent/FI67646B/fi
Application granted granted Critical
Publication of FI67646C publication Critical patent/FI67646C/fi

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Details Of Television Scanning (AREA)
  • Digital Computer Display Output (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Claims (7)

1. Styrutrustning för katodsträlerör, innefattande medel för matning av en korrektionsfaktorsignal till ett katodsträlerör med minst en uppsättning avlänkningsorgan, varvid var och en av korrektionsfaktorsignalerna beräknas att korrigera distorsioner i katodsträlerörets sträle eller strälar, när en tillhörande av ett flertal areor pä katodsträlerörets skärm avsökes, vilka distorsioner förorsakas av bildens kuddistorsion och konvergens, ett digitaldataminne (12,13) för lagring av korrektionsfaktorsignalerna för varje area pä skärmen i digital form samt medel för utläsning av digitalkorrektionsfaktorsignaler frän digital-dataminnet, när tillhörande area pä skärmen avsökes, samt om-vandling av digitalsignalen till analog form, innan den mätäs till katodsträlerörets avlänkningsorgan (8,9,10), k ä n n e -t e c k n a d därav, att korrektionsfaktorsignalen för var och en av nämnda areor pä katodsträlerörets skärm har minst tvä komponenter, en grundkorrektionssignal och en finkorrektions-signal, samt att digitaldataminnet har en första del (12) för lagring i digital form av grundkorrektionssignalen och en andra del (13) för lagring i digital form av finkorrektionssignalen.
2. Styrutrustning enligt patentkravet 1, k ä n n e - t e c k n a d därav, att katodsträleröret är ett trekanonrör, och att den andra delen av digitaldataminnet lagrar minst tre komponenter av finkorrektionssignalen, vilka komponenter var och en hör samman med sin särskilda av de tre katodsträlerör-kanonerna.
3. Styrutrustning enligt patentkravet 2, känne- t e c k n a d därav, att avlänkningsorganen bestä av en uppsättning konvergensspolar, en för varje kanon, varvid när strälarna avsöka en viss area pä skärmen, var och en av konve-gensspolarna mottager i analog form grundkorrektionssignalen och tillhörande del av finkorrektionssignalen.
4. Styrutrustning enligt patentkravet 3, k ä n n e - t e c k n a d därav, att katodsträleröret inkluderar en sid-ledsförskjutningsspole (11), och att finkorrektionssignalen innefattar en fjärde del, som mätäs i analog form till sidleds-förskjutningsspolen, när tillhörande area pä skärmen avsökes.
FI773913A 1976-12-22 1977-12-22 Digitalt konvergeringsfoerfarande foer katodstraolsfaergbildroer FI67646C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5358376 1976-12-22
GB53583/76A GB1517119A (en) 1976-12-22 1976-12-22 Cathode ray tube control apparatus

Publications (3)

Publication Number Publication Date
FI773913A7 FI773913A7 (fi) 1978-06-23
FI67646B FI67646B (fi) 1984-12-31
FI67646C true FI67646C (fi) 1985-04-10

Family

ID=10468310

Family Applications (1)

Application Number Title Priority Date Filing Date
FI773913A FI67646C (fi) 1976-12-22 1977-12-22 Digitalt konvergeringsfoerfarande foer katodstraolsfaergbildroer

Country Status (19)

Country Link
US (1) US4203051A (sv)
JP (1) JPS5394831A (sv)
AU (1) AU509002B2 (sv)
BE (1) BE860552A (sv)
BR (1) BR7708542A (sv)
CA (1) CA1113611A (sv)
CH (1) CH622142A5 (sv)
DE (1) DE2747239C2 (sv)
DK (1) DK147030C (sv)
ES (1) ES465006A1 (sv)
FI (1) FI67646C (sv)
FR (1) FR2375668A1 (sv)
GB (1) GB1517119A (sv)
IE (1) IE45853B1 (sv)
IT (1) IT1114845B (sv)
NL (1) NL7714083A (sv)
NO (1) NO151913C (sv)
SE (1) SE437596B (sv)
ZA (1) ZA777591B (sv)

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US4385259A (en) * 1980-12-24 1983-05-24 Sperry Corporation Dynamic convergence control apparatus for shadow mask CRT displays
JPS57212492A (en) * 1981-06-24 1982-12-27 Hitachi Ltd Color diviation corrector for color braun tube
US4456853A (en) * 1981-07-06 1984-06-26 Tektronix, Inc. Feedback CRT for use in a closed-loop correction system
GB2102258B (en) * 1981-07-06 1985-09-18 Tektronix Inc Closed-loop correction system for crt-type display
US4378516A (en) * 1981-07-31 1983-03-29 Motorola Inc. Pincushion correction in a dual deflection CRT system
US4431949A (en) * 1982-03-31 1984-02-14 Tektronix, Inc. Lateral convergence correction system
US4500916A (en) * 1982-04-05 1985-02-19 Panavision, Inc. Automatic on-air registration system and method for color TV camera
US4549172A (en) * 1982-06-21 1985-10-22 Motorola, Inc. Multicolor display from monochrome or multicolor control unit
US4451824A (en) * 1982-06-21 1984-05-29 Motorola, Inc. Color convergence data processing in a CRT color display station
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
GB2132057B (en) * 1982-09-09 1986-04-23 Link Electronics Ltd Electro-optical image correction
US4598234A (en) * 1984-05-29 1986-07-01 Tektronix, Inc. Digital image correction circuit for cathode ray tube displays
DE3483265D1 (de) * 1984-06-25 1990-10-25 Ibm Mtl-speicherzelle mit inhaerenter mehrfachfaehigkeit.
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
JP2636831B2 (ja) * 1984-10-17 1997-07-30 ソニー株式会社 受像機
US4628466A (en) * 1984-10-29 1986-12-09 Excellon Industries Method and apparatus for pattern forming
JPS61281791A (ja) * 1985-06-07 1986-12-12 Sony Corp デイジタルコンバ−ジエンス装置
US4757239A (en) * 1985-10-18 1988-07-12 Hilliard-Lyons Patent Management, Inc. CRT display system with automatic alignment employing personality memory
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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
DE3814986A1 (de) * 1988-05-03 1989-11-16 Bosch Gmbh Robert Schaltungsanordnung und verfahren zur konvergenzkorrektur
US4871948A (en) * 1988-11-08 1989-10-03 Honeywell Inc. Memory mapped deflection correction system
US4935674A (en) * 1988-12-27 1990-06-19 Rca Licensing Corporation Digitally controlled convergence system
DE3943421A1 (de) * 1989-12-30 1991-07-04 Thomson Brandt Gmbh Schaltung zur rasterkorrektur in einem fernsehgeraet
DE4109856A1 (de) * 1991-03-26 1992-10-01 Thomson Brandt Gmbh Farbbildroehre mit waagerechten farbstreifen
US5274307A (en) * 1991-08-15 1993-12-28 Zenith Electronics Corporation Single IC for CRT display control waveform generation
WO1994003920A1 (en) * 1992-08-03 1994-02-17 Capetronic Computer Usa (Hk) Inc. Automatic monitor alignment system
KR970005942B1 (ko) * 1994-09-16 1997-04-22 엘지전자 주식회사 모니터의 휘도 자동보정장치
DE19704775A1 (de) * 1997-02-08 1998-08-13 Thomson Brandt Gmbh Verfahren zur Korrektur der Konvergenz bei einem Projektionsfernsehgerät
KR100393559B1 (ko) * 2000-09-30 2003-08-02 삼성전기주식회사 디지털 동적 컨버젼스 제어 방법 및 그 시스템
CN101617354A (zh) 2006-12-12 2009-12-30 埃文斯和萨瑟兰计算机公司 用于校准单个调制器投影仪中的rgb光的系统和方法
US20080259988A1 (en) * 2007-01-19 2008-10-23 Evans & Sutherland Computer Corporation Optical actuator with improved response time and method of making the same
US20090002644A1 (en) * 2007-05-21 2009-01-01 Evans & Sutherland Computer Corporation Invisible scanning safety system
WO2009033122A1 (en) * 2007-09-07 2009-03-12 Evans & Sutherland Computer Corporation Device and method for reducing etendue in a diode laser
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
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

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US3465137A (en) * 1966-12-29 1969-09-02 Gen Electric Analog computation apparatus for generation of dynamic correction signals for cathode ray tubes
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GB1353147A (en) * 1970-04-18 1974-05-15 Emi Ltd Scanning arrangements
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US4095137A (en) * 1977-03-18 1978-06-13 Sperry Rand Corporation Digital convergence system for a multi-gun crt

Also Published As

Publication number Publication date
FI67646B (fi) 1984-12-31
IT1114845B (it) 1986-01-27
CH622142A5 (sv) 1981-03-13
JPS5640355B2 (sv) 1981-09-19
AU3165877A (en) 1979-06-21
SE7713738L (sv) 1978-06-23
SE437596B (sv) 1985-03-04
BE860552A (fr) 1978-03-01
ZA777591B (en) 1979-07-25
FR2375668B1 (sv) 1980-09-26
DK147030B (da) 1984-03-19
DK571477A (da) 1978-06-23
JPS5394831A (en) 1978-08-19
FR2375668A1 (fr) 1978-07-21
FI773913A7 (fi) 1978-06-23
ES465006A1 (es) 1978-09-01
US4203051A (en) 1980-05-13
NL7714083A (nl) 1978-06-26
DK147030C (da) 1984-08-27
DE2747239A1 (de) 1978-07-06
AU509002B2 (en) 1980-04-17
NO151913B (no) 1985-03-18
BR7708542A (pt) 1978-09-05
NO151913C (no) 1985-06-26
GB1517119A (en) 1978-07-12
IE45853B1 (en) 1982-12-15
DE2747239C2 (de) 1987-04-09
CA1113611A (en) 1981-12-01
IE45853L (en) 1978-06-22
NO774329L (no) 1978-06-23

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Owner name: INTERNATIONAL BUSINESS MACHINES