ES8603135A1 - Perfeccionamientos introducidos en una instalacion de trata-miento de senales de video, como receptor de television o unmonitor de video - Google Patents
Perfeccionamientos introducidos en una instalacion de trata-miento de senales de video, como receptor de television o unmonitor de videoInfo
- Publication number
- ES8603135A1 ES8603135A1 ES540833A ES540833A ES8603135A1 ES 8603135 A1 ES8603135 A1 ES 8603135A1 ES 540833 A ES540833 A ES 540833A ES 540833 A ES540833 A ES 540833A ES 8603135 A1 ES8603135 A1 ES 8603135A1
- Authority
- ES
- Spain
- Prior art keywords
- beam current
- dac
- video signal
- signal processor
- current limiter
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
- H04N5/59—Control of contrast or brightness in dependence upon beam current of cathode ray tube
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
- H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant
-
- 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
- H04N9/645—Beam current control means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Picture Signal Circuits (AREA)
- Processing Of Color Television Signals (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
TRATAMIENTO DE SEÑALES DE VIDEO, CON EL CUAL SE COMPENSA LOS DESPLAZAMIENTOS DEL NIVEL DE NEGRO INDUCIDOS POR LA ACCION DE CONTROL DEL LIMITADOR DE HAZ.EL APARATO SE UTILIZA EN UN CANAL DE TRATAMIENTO DE SEÑALES DE VIDEO DIGITALES. LA COMPENSACION DE DESPLAZAMIENTOS INDESEADOS EN EL NIVEL DE NEGRO DE LAS SEÑALES DE VIDEO DE SALIDA SE CONSIGUE ACOPLANDO A LA SALIDA DEL CONVERTIDOR DE DIGITAL A ANALOGICO UNA VERSION DE LA SEÑAL DE CONTROL CON UNA MAGNITUD Y POLARIDAD ADECUADAS PARA ANULAR SUSTANCIALMENTE LOS DESPLAZAMIENTOS EN EL NIVEL DE NEGRO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/587,583 US4633320A (en) | 1984-03-08 | 1984-03-08 | Video signal processor with automatic kinescope beam current limiter |
Publications (2)
Publication Number | Publication Date |
---|---|
ES540833A0 ES540833A0 (es) | 1985-12-01 |
ES8603135A1 true ES8603135A1 (es) | 1985-12-01 |
Family
ID=24350379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES540833A Expired ES8603135A1 (es) | 1984-03-08 | 1985-03-01 | Perfeccionamientos introducidos en una instalacion de trata-miento de senales de video, como receptor de television o unmonitor de video |
Country Status (14)
Country | Link |
---|---|
US (1) | US4633320A (es) |
JP (1) | JPS60206384A (es) |
KR (1) | KR930004803B1 (es) |
AT (1) | AT395086B (es) |
AU (1) | AU583492B2 (es) |
CA (1) | CA1228159A (es) |
DE (1) | DE3508168A1 (es) |
ES (1) | ES8603135A1 (es) |
FI (1) | FI79434C (es) |
FR (1) | FR2561051B1 (es) |
GB (1) | GB2155739B (es) |
HK (1) | HK24093A (es) |
IT (1) | IT1183466B (es) |
SE (1) | SE454832B (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8502637A (nl) * | 1985-03-06 | 1986-10-01 | Philips Nv | Beeldweergeefinrichting. |
NL8502636A (nl) * | 1985-03-06 | 1986-10-01 | Philips Nv | Beeldweergeefinrichting. |
US4799107A (en) * | 1987-04-06 | 1989-01-17 | Rca Licensing Corporation | Auxiliary gain control apparatus for a television receiver |
FR2640839B1 (fr) * | 1988-12-20 | 1991-03-15 | Portenseigne Radiotechnique | Appareil de reproduction d'image video muni d'un reglage de contraste, et procede de reglage du contraste d'un tel appareil de reproduction |
US5313294A (en) * | 1990-03-20 | 1994-05-17 | Rca Thomson Licensing Corporation | Beam current limiting arrangement having a peak amplitude, responsive threshold |
GB9006250D0 (en) * | 1990-03-20 | 1990-05-16 | Rca Licensing Corp | Non-linear beam current limiter |
US5200829A (en) * | 1991-12-16 | 1993-04-06 | Thomson Consumer Electronics, Inc. | Contrast beam current limiting arrangement with secondary brightness beam current limiting provisions |
JP3267061B2 (ja) * | 1994-08-29 | 2002-03-18 | 松下電器産業株式会社 | Abl回路とacl回路と輝度・色差信号処理回路とテレビジョン受像機 |
DE19709681A1 (de) * | 1997-03-11 | 1998-09-17 | Thomson Brandt Gmbh | Schaltung zur Überwachung des Strahlstroms in einer Farbildröhre |
US7236203B1 (en) | 2004-04-22 | 2007-06-26 | National Semiconductor Corporation | Video circuitry for controlling signal gain and reference black level |
US7277135B1 (en) * | 2004-07-23 | 2007-10-02 | National Semiconductor Corporation | Video display signal brightness control circuit |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4137552A (en) * | 1977-05-05 | 1979-01-30 | Rca Corporation | Automatic beam current limiter with independently determined threshold level and dynamic control range |
DE2750911A1 (de) * | 1977-11-14 | 1979-05-17 | Joerg Troeger | Miederkorsage |
US4207591A (en) * | 1978-02-09 | 1980-06-10 | Rca Corporation | Gated automatic beam current limiter in a video signal processing system |
US4167025A (en) * | 1978-02-09 | 1979-09-04 | Rca Corporation | Automatic peak beam current limiter |
US4253121A (en) * | 1978-10-12 | 1981-02-24 | Rca Corporation | Plural sequential operating mode automatic kinescope beam current limiter |
US4209808A (en) * | 1979-03-26 | 1980-06-24 | Rca Corporation | Stabilized automatic brightness control network in a video signal processing system including an automatic kinescope beam current limiter |
US4344021A (en) * | 1980-07-21 | 1982-08-10 | Rca Corporation | System for compensating for transfer characteristic variations of electron guns |
US4376288A (en) * | 1981-08-27 | 1983-03-08 | Rca Corporation | Signal gain control with DC compensation |
US4403253A (en) * | 1981-12-28 | 1983-09-06 | General Electric Company | Uniform distribution video processor with controlled reference voltages |
US4516152A (en) * | 1983-05-23 | 1985-05-07 | Rca Corporation | Video signal processor with automatic kinescope white balance and beam current limiter control systems |
-
1984
- 1984-03-08 US US06/587,583 patent/US4633320A/en not_active Expired - Fee Related
-
1985
- 1985-02-21 CA CA000474883A patent/CA1228159A/en not_active Expired
- 1985-02-22 AU AU39081/85A patent/AU583492B2/en not_active Ceased
- 1985-03-01 ES ES540833A patent/ES8603135A1/es not_active Expired
- 1985-03-01 SE SE8501012A patent/SE454832B/sv not_active IP Right Cessation
- 1985-03-01 FI FI850856A patent/FI79434C/fi not_active IP Right Cessation
- 1985-03-05 IT IT19752/85A patent/IT1183466B/it active
- 1985-03-07 FR FR858503372A patent/FR2561051B1/fr not_active Expired - Fee Related
- 1985-03-07 KR KR1019850001465A patent/KR930004803B1/ko not_active IP Right Cessation
- 1985-03-07 JP JP60046307A patent/JPS60206384A/ja active Granted
- 1985-03-07 DE DE19853508168 patent/DE3508168A1/de active Granted
- 1985-03-07 GB GB08505949A patent/GB2155739B/en not_active Expired
- 1985-03-08 AT AT0070385A patent/AT395086B/de not_active IP Right Cessation
-
1993
- 1993-03-18 HK HK240/93A patent/HK24093A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU583492B2 (en) | 1989-05-04 |
FR2561051B1 (fr) | 1991-02-01 |
FI79434B (fi) | 1989-08-31 |
KR930004803B1 (ko) | 1993-06-08 |
FI850856A0 (fi) | 1985-03-01 |
DE3508168C2 (es) | 1988-01-28 |
GB8505949D0 (en) | 1985-04-11 |
ES540833A0 (es) | 1985-12-01 |
SE454832B (sv) | 1988-05-30 |
US4633320A (en) | 1986-12-30 |
HK24093A (en) | 1993-03-26 |
GB2155739A (en) | 1985-09-25 |
ATA70385A (de) | 1992-01-15 |
IT1183466B (it) | 1987-10-22 |
FR2561051A1 (fr) | 1985-09-13 |
AU3908185A (en) | 1985-09-12 |
FI79434C (fi) | 1989-12-11 |
SE8501012D0 (sv) | 1985-03-01 |
DE3508168A1 (de) | 1985-09-12 |
JPH0513432B2 (es) | 1993-02-22 |
JPS60206384A (ja) | 1985-10-17 |
KR850006823A (ko) | 1985-10-16 |
CA1228159A (en) | 1987-10-13 |
IT8519752A0 (it) | 1985-03-05 |
SE8501012L (sv) | 1985-09-09 |
GB2155739B (en) | 1987-09-30 |
FI850856L (fi) | 1985-09-09 |
AT395086B (de) | 1992-09-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20040803 |