FR2375668A1 - Dispositif de commande de tubes a rayons cathodiques pour supprimer les distorsions - Google Patents

Dispositif de commande de tubes a rayons cathodiques pour supprimer les distorsions

Info

Publication number
FR2375668A1
FR2375668A1 FR7734663A FR7734663A FR2375668A1 FR 2375668 A1 FR2375668 A1 FR 2375668A1 FR 7734663 A FR7734663 A FR 7734663A FR 7734663 A FR7734663 A FR 7734663A FR 2375668 A1 FR2375668 A1 FR 2375668A1
Authority
FR
France
Prior art keywords
control device
zone
tube
remove distortion
tubes control
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.)
Granted
Application number
FR7734663A
Other languages
English (en)
Other versions
FR2375668B1 (fr
Inventor
Brian R Sowter
Michael H Hallett
Michael J Heneghan
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2375668A1 publication Critical patent/FR2375668A1/fr
Application granted granted Critical
Publication of FR2375668B1 publication Critical patent/FR2375668B1/fr
Granted legal-status Critical Current

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)

Abstract

Dispositif pour corriger les distorsions dans l'image affichée sur l'ecran d'un tube à rayons cathodiques, à trois canons. L'écran du tube est divisé en zones et des signaux de correction numériques sont dérivés pour chaque zone. Lorsque les faisceaux balayent une zone particulière le signal de correction associé à cette zone est extrait d'une mémoire, et transmis par un convertisseur numérique analogique aux bobines de convergence du tube. Application aux tubes à rayons cathodiques pour l'affichage en couleur.
FR7734663A 1976-12-22 1977-11-10 Dispositif de commande de tubes a rayons cathodiques pour supprimer les distorsions Granted FR2375668A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2375668A1 true FR2375668A1 (fr) 1978-07-21
FR2375668B1 FR2375668B1 (fr) 1980-09-26

Family

ID=10468310

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734663A Granted FR2375668A1 (fr) 1976-12-22 1977-11-10 Dispositif de commande de tubes a rayons cathodiques pour supprimer les distorsions

Country Status (19)

Country Link
US (1) US4203051A (fr)
JP (1) JPS5394831A (fr)
AU (1) AU509002B2 (fr)
BE (1) BE860552A (fr)
BR (1) BR7708542A (fr)
CA (1) CA1113611A (fr)
CH (1) CH622142A5 (fr)
DE (1) DE2747239A1 (fr)
DK (1) DK147030C (fr)
ES (1) ES465006A1 (fr)
FI (1) FI67646C (fr)
FR (1) FR2375668A1 (fr)
GB (1) GB1517119A (fr)
IE (1) IE45853B1 (fr)
IT (1) IT1114845B (fr)
NL (1) NL7714083A (fr)
NO (1) NO151913C (fr)
SE (1) SE437596B (fr)
ZA (1) ZA777591B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384401A1 (fr) * 1977-03-18 1978-10-13 Sperry Rand Corp Systeme de convergence numerique pour tube a rayons cathodiques a plusieurs canons

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DE2805691C3 (de) 1978-02-10 1983-11-03 Siemens AG, 1000 Berlin und 8000 München Digitale Steuereinheit in einem Farbfernseh-Empfänger zur Ansteuerung der Ablenkendstufen
US4982178A (en) * 1978-10-05 1991-01-01 Evans & Sutherland Computer Corp. Shadow mask color system with calligraphic displays
GB2052144A (en) * 1979-06-27 1981-01-21 Ibm Shadow mask colour television tubes
GB2066029B (en) * 1979-12-15 1983-03-23 Ibm Digitally stored differences for correction of crt aberrations
GB2066028A (en) * 1979-12-15 1981-07-01 Ibm Digitally stored quantities for correction of crt aberrrations
JPS56103420A (en) * 1980-01-23 1981-08-18 Hitachi Ltd Compensating method for deflection distortion in charged particle beam apparatus
DE3067822D1 (en) * 1980-06-13 1984-06-20 Ibm Convergence unit for cathode-ray tube
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
GB2102258B (en) * 1981-07-06 1985-09-18 Tektronix Inc Closed-loop correction system for crt-type display
US4456853A (en) * 1981-07-06 1984-06-26 Tektronix, Inc. Feedback CRT for use in a closed-loop correction system
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
US4451824A (en) * 1982-06-21 1984-05-29 Motorola, Inc. Color convergence data processing in a CRT color display station
US4549172A (en) * 1982-06-21 1985-10-22 Motorola, Inc. Multicolor display from monochrome or multicolor control unit
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
US4687973A (en) * 1986-07-09 1987-08-18 Electronic Image Systems, Inc. Digital waveform generator
US4799000A (en) * 1986-09-30 1989-01-17 Magnavox Government And Industrial Electronics Company Display control apparatus
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 (fr) * 1992-08-03 1994-02-17 Capetronic Computer Usa (Hk) Inc. Systeme d'alignement automatique de moniteur
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
EP2104930A2 (fr) 2006-12-12 2009-09-30 Evans & Sutherland Computer Corporation Système et procédé d'alignement de lumière rvb dans un projecteur monomodulateur
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 (fr) * 2007-09-07 2009-03-12 Evans & Sutherland Computer Corporation Dispositif et procédé pour réduire l'étendue optique dans un laser à diode
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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US3435278A (en) * 1966-06-30 1969-03-25 Ibm Pincushion corrected deflection system for flat faced cathode ray tube
US3465137A (en) * 1966-12-29 1969-09-02 Gen Electric Analog computation apparatus for generation of dynamic correction signals for cathode ray tubes
US3422304A (en) * 1967-09-15 1969-01-14 Ibm Logic controlled deflection system
US3501669A (en) * 1968-11-29 1970-03-17 Bunker Ramo Deflection signal correction system
US3702949A (en) * 1970-01-07 1972-11-14 Harris Intertype Corp Compensation systems for cathode ray tube display systems
GB1353147A (en) * 1970-04-18 1974-05-15 Emi Ltd Scanning arrangements
US3714496A (en) * 1970-10-07 1973-01-30 Harris Intertype Corp Compensation for graphical image display system for compensating the particular non-linear characteristic of a display
GB1371045A (en) * 1970-12-09 1974-10-23 Sanders Associates Inc Cathode ray tube circuit arrangmeent
US3852640A (en) * 1971-03-31 1974-12-03 Sanders Associates Inc Cathode ray tube circuit
US3943279A (en) * 1974-09-23 1976-03-09 Aeronutronic Ford Corporation Digital convergence of multiple image projectors
US4104566A (en) * 1976-04-29 1978-08-01 Harris Corporation Analog correction system
US4099092A (en) * 1976-08-18 1978-07-04 Atari, Inc. Television display alignment system and method
US4095137A (en) * 1977-03-18 1978-06-13 Sperry Rand Corporation Digital convergence system for a multi-gun crt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384401A1 (fr) * 1977-03-18 1978-10-13 Sperry Rand Corp Systeme de convergence numerique pour tube a rayons cathodiques a plusieurs canons

Also Published As

Publication number Publication date
NO151913C (no) 1985-06-26
DE2747239A1 (de) 1978-07-06
CH622142A5 (fr) 1981-03-13
AU3165877A (en) 1979-06-21
JPS5394831A (en) 1978-08-19
IT1114845B (it) 1986-01-27
US4203051A (en) 1980-05-13
GB1517119A (en) 1978-07-12
AU509002B2 (en) 1980-04-17
IE45853L (en) 1978-06-22
NL7714083A (nl) 1978-06-26
CA1113611A (fr) 1981-12-01
DK147030C (da) 1984-08-27
FI773913A (fi) 1978-06-23
NO151913B (no) 1985-03-18
DK571477A (da) 1978-06-23
BE860552A (fr) 1978-03-01
SE437596B (sv) 1985-03-04
BR7708542A (pt) 1978-09-05
IE45853B1 (en) 1982-12-15
ZA777591B (en) 1979-07-25
FI67646B (fi) 1984-12-31
DK147030B (da) 1984-03-19
SE7713738L (sv) 1978-06-23
ES465006A1 (es) 1978-09-01
FI67646C (fi) 1985-04-10
FR2375668B1 (fr) 1980-09-26
JPS5640355B2 (fr) 1981-09-19
DE2747239C2 (fr) 1987-04-09
NO774329L (no) 1978-06-23

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