MX9303615A - Aparato excitador de cinescopio, con incremento de contraste. - Google Patents
Aparato excitador de cinescopio, con incremento de contraste.Info
- Publication number
- MX9303615A MX9303615A MX9303615A MX9303615A MX9303615A MX 9303615 A MX9303615 A MX 9303615A MX 9303615 A MX9303615 A MX 9303615A MX 9303615 A MX9303615 A MX 9303615A MX 9303615 A MX9303615 A MX 9303615A
- Authority
- MX
- Mexico
- Prior art keywords
- amplifier
- coupled
- kinescope
- loop gain
- closed
- Prior art date
Links
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
- H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
- Television Receiver Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Se acopla un amplificador (430) de excitador de cinescopio, inversor, de alto voltaje, en su entrada (431), a una fuente (406) de señales de entrada de video de bajo voltaje (R; G; B), que se va acoplar, y se acopla en su salida (433) para suministrar señales de salida de video amplificada al cátodo (420; 422; 424) de un cinescopio (141). El amplificador de alto voltaje incluye trayectoria de realimentación lineal (R2) y no lineal (R3, R4, C1 D1), las cuales, en combinación, determinan una ganancia de circuito cerrado nominal para el amplificador. La trayectoria no lineal incluye elementos que dependen de la amplitud (D1) y de la frecuencia (1), para incrementar la ganancia de circuito cerrado del amplificador, en una cantidad dada, en las áreas de baja brillantez (de negro a gris) exhibidas por el cinescopio, (mejorado de esa manera el detalle de la imagen oscura) y aumenta la ganancia de circuito cerrado del amplificador, sustancialmente en la misma cantidad dada para los componentes de señal de detalle de vidrio de alta frecuencia, en áreas de imagen de gran brillantez (mejorando de esa manera el contraste subjetivo, sin florear los puntos, y evitando la impresión de imágenes 'deslavazar'.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB929212851A GB9212851D0 (en) | 1992-06-17 | 1992-06-17 | Video output amplifier with non-linear feedback |
| US07/906,313 US5317240A (en) | 1992-06-29 | 1992-06-29 | Kinescope driver apparatus with contrast enhancement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX9303615A true MX9303615A (es) | 1993-12-01 |
Family
ID=26301085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX9303615A MX9303615A (es) | 1992-06-17 | 1993-06-16 | Aparato excitador de cinescopio, con incremento de contraste. |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0575824B1 (es) |
| JP (1) | JP3050261B2 (es) |
| KR (2) | KR940001702A (es) |
| CN (1) | CN1046074C (es) |
| DE (1) | DE69327819T2 (es) |
| ES (1) | ES2141741T3 (es) |
| MX (1) | MX9303615A (es) |
| MY (1) | MY110211A (es) |
| PT (1) | PT575824E (es) |
| SG (1) | SG93761A1 (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2145901C (en) * | 1994-04-28 | 2000-02-22 | Anton Werner Keller | Kinescope driver apparatus with gamma correction |
| KR19990058436A (ko) * | 1997-12-30 | 1999-07-15 | 김영환 | 대형 모니터에서의 콘트라스트 이득 보상장치 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1582138A (en) * | 1976-07-19 | 1980-12-31 | Rca Corp | Video amplifier circuit |
| GB2049347B (en) * | 1979-05-11 | 1983-04-27 | Rca Corp | Video signal processing circuit having a nonlinear transfer function |
| US4295160A (en) * | 1979-05-11 | 1981-10-13 | Rca Corporation | Signal processing circuit having a non-linear transfer function |
| US4366440A (en) * | 1980-10-31 | 1982-12-28 | Rca Corporation | Adjustable contrast compressor |
| FR2653949B1 (fr) * | 1989-10-30 | 1992-02-07 | Celduc Const Elect Centre | Dispositif de refroidissement pour inducteur de moteur lineaire. |
| CA2027337C (en) * | 1989-11-10 | 2001-04-24 | Peter Eduard Haferl | Nonlinear rgb video signal processing |
-
1993
- 1993-06-03 MY MYPI93001071A patent/MY110211A/en unknown
- 1993-06-09 ES ES93109275T patent/ES2141741T3/es not_active Expired - Lifetime
- 1993-06-09 SG SG9602376A patent/SG93761A1/en unknown
- 1993-06-09 PT PT93109275T patent/PT575824E/pt unknown
- 1993-06-09 DE DE69327819T patent/DE69327819T2/de not_active Expired - Fee Related
- 1993-06-09 EP EP93109275A patent/EP0575824B1/en not_active Expired - Lifetime
- 1993-06-16 MX MX9303615A patent/MX9303615A/es active IP Right Grant
- 1993-06-16 JP JP5171022A patent/JP3050261B2/ja not_active Expired - Fee Related
- 1993-06-16 CN CN93106728A patent/CN1046074C/zh not_active Expired - Fee Related
- 1993-06-17 KR KR1019920011072A patent/KR940001702A/ko not_active Application Discontinuation
- 1993-06-17 KR KR1019930011072A patent/KR100311767B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0575824A2 (en) | 1993-12-29 |
| DE69327819T2 (de) | 2000-05-31 |
| PT575824E (pt) | 2000-07-31 |
| JP3050261B2 (ja) | 2000-06-12 |
| KR940001702A (ko) | 1994-01-11 |
| JPH06125512A (ja) | 1994-05-06 |
| CN1046074C (zh) | 1999-10-27 |
| EP0575824B1 (en) | 2000-02-09 |
| SG93761A1 (en) | 2003-01-21 |
| EP0575824A3 (en) | 1995-02-15 |
| CN1082298A (zh) | 1994-02-16 |
| DE69327819D1 (de) | 2000-03-16 |
| KR100311767B1 (ko) | 2001-12-28 |
| ES2141741T3 (es) | 2000-04-01 |
| MY110211A (en) | 1998-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2096568T3 (es) | Un sistema de video dinamico que incluye secciones de tratamiento del contraste automatico y de "extension del blanco". | |
| KR850002198A (ko) | 다이나믹 신호 코어링회로 | |
| GB714154A (en) | Improvements relating to colour television apparatus | |
| ES2095881T3 (es) | Aparato regulador del tamaño de trama. | |
| TW344082B (en) | Adjustment of scan velocity modulation as a function of selected sharpness | |
| US3225138A (en) | Apparatus for reducing brightness variation using photochromic material | |
| MX9303615A (es) | Aparato excitador de cinescopio, con incremento de contraste. | |
| DK0614319T3 (da) | Fjernsynsprojektionssystem | |
| DE50000656D1 (de) | Bildprojektor | |
| JPS6418133A (en) | Display medium and device | |
| DK0414159T3 (da) | Forstærkerarrangement til at tilvejebringe en styrbar, ikke-lineær overføingskarakteristik, som er brugbar til at forbedre kontrasten i et billede | |
| US3488434A (en) | Control system for photosensitive video recorder | |
| GB514155A (en) | Improvements in or relating to television receivers | |
| ES2095866T3 (es) | Procesamiento de señales de video. | |
| EP0517266A3 (en) | Laser | |
| Lee et al. | OPO-based compact laser projection display | |
| ATE225525T1 (de) | Transversaler elektrooptischer modulator | |
| KR0132231Y1 (ko) | 속도변조장치 | |
| JPS57143986A (en) | Television camera | |
| JPS5689171A (en) | Picture recording device | |
| SE8300916L (sv) | Bildror och en atergivningsanordning for fergbilder med flera ferger | |
| JPS57133780A (en) | Picture display device | |
| JPH0229683A (ja) | 表示装置 | |
| KR950004904A (ko) | 고주파영상의 화질향상장치 | |
| Vasil'ev et al. | A phase object in the projection system with brightness amplification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant or registration |