FI67646C - Digitalt konvergeringsfoerfarande foer katodstraolsfaergbildroer - Google Patents
Digitalt konvergeringsfoerfarande foer katodstraolsfaergbildroer Download PDFInfo
- 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
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.
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 |
---|---|
FI773913A FI773913A (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) | DE2747239A1 (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) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4095137A (en) * | 1977-03-18 | 1978-06-13 | Sperry Rand Corporation | Digital convergence system for a multi-gun crt |
GB1586201A (en) * | 1977-09-15 | 1981-03-18 | Ibm | Methods of generating correction factor signals for cathode ray tubes |
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 |
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 |
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 (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 |
US7891818B2 (en) | 2006-12-12 | 2011-02-22 | Evans & Sutherland Computer Corporation | System and method for aligning RGB light in a single modulator projector |
US20080259988A1 (en) * | 2007-01-19 | 2008-10-23 | Evans & Sutherland Computer Corporation | Optical actuator with improved response time and method of making the same |
WO2008144749A1 (en) * | 2007-05-21 | 2008-11-27 | 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 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1976
- 1976-12-22 GB GB53583/76A patent/GB1517119A/en not_active Expired
-
1977
- 1977-09-29 CA CA287,759A patent/CA1113611A/en not_active Expired
- 1977-10-21 DE DE19772747239 patent/DE2747239A1/de active Granted
- 1977-11-07 BE BE182407A patent/BE860552A/xx not_active IP Right Cessation
- 1977-11-08 CH CH1355177A patent/CH622142A5/de not_active IP Right Cessation
- 1977-11-10 FR FR7734663A patent/FR2375668A1/fr active Granted
- 1977-12-05 SE SE7713738A patent/SE437596B/sv not_active IP Right Cessation
- 1977-12-09 JP JP14730577A patent/JPS5394831A/ja active Granted
- 1977-12-12 IT IT30571/77A patent/IT1114845B/it active
- 1977-12-13 ES ES465006A patent/ES465006A1/es not_active Expired
- 1977-12-13 US US05/860,402 patent/US4203051A/en not_active Expired - Lifetime
- 1977-12-15 NO NO774329A patent/NO151913C/no unknown
- 1977-12-16 IE IE2566/77A patent/IE45853B1/en not_active IP Right Cessation
- 1977-12-16 AU AU31658/77A patent/AU509002B2/en not_active Expired
- 1977-12-19 NL NL7714083A patent/NL7714083A/xx not_active Application Discontinuation
- 1977-12-21 BR BR7708542A patent/BR7708542A/pt unknown
- 1977-12-21 DK DK571477A patent/DK147030C/da not_active IP Right Cessation
- 1977-12-21 ZA ZA00777591A patent/ZA777591B/xx unknown
- 1977-12-22 FI FI773913A patent/FI67646C/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE437596B (sv) | 1985-03-04 |
CH622142A5 (sv) | 1981-03-13 |
DK147030B (da) | 1984-03-19 |
GB1517119A (en) | 1978-07-12 |
JPS5394831A (en) | 1978-08-19 |
DK571477A (da) | 1978-06-23 |
AU509002B2 (en) | 1980-04-17 |
CA1113611A (en) | 1981-12-01 |
FI67646B (fi) | 1984-12-31 |
AU3165877A (en) | 1979-06-21 |
IE45853B1 (en) | 1982-12-15 |
IT1114845B (it) | 1986-01-27 |
DE2747239C2 (sv) | 1987-04-09 |
BR7708542A (pt) | 1978-09-05 |
IE45853L (en) | 1978-06-22 |
FI773913A (fi) | 1978-06-23 |
NO774329L (no) | 1978-06-23 |
SE7713738L (sv) | 1978-06-23 |
BE860552A (fr) | 1978-03-01 |
FR2375668B1 (sv) | 1980-09-26 |
NL7714083A (nl) | 1978-06-26 |
ZA777591B (en) | 1979-07-25 |
ES465006A1 (es) | 1978-09-01 |
US4203051A (en) | 1980-05-13 |
DK147030C (da) | 1984-08-27 |
JPS5640355B2 (sv) | 1981-09-19 |
NO151913C (no) | 1985-06-26 |
DE2747239A1 (de) | 1978-07-06 |
FR2375668A1 (fr) | 1978-07-21 |
NO151913B (no) | 1985-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: INTERNATIONAL BUSINESS MACHINES |