ES2050155T3 - Aparato auxiliar para el control de ganancia de video, p.ej. para un receptor de television. - Google Patents
Aparato auxiliar para el control de ganancia de video, p.ej. para un receptor de television.Info
- Publication number
- ES2050155T3 ES2050155T3 ES88303076T ES88303076T ES2050155T3 ES 2050155 T3 ES2050155 T3 ES 2050155T3 ES 88303076 T ES88303076 T ES 88303076T ES 88303076 T ES88303076 T ES 88303076T ES 2050155 T3 ES2050155 T3 ES 2050155T3
- Authority
- ES
- Spain
- Prior art keywords
- television receiver
- auxiliary device
- controlling video
- video gain
- brm
- 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 - Lifetime
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
- H04N5/58—Control of contrast or brightness in dependence upon ambient light
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Controls And Circuits For Display Device (AREA)
- Picture Signal Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
EN UN RECEPTOR DE TELEVISION, UNA SEÑAL DE SALIDA PROCEDENTE DE UN MULTIPLICADOR BINARIO DE FRECUENCIA (BRM) (24) SE USA PARA CONTROLAR LA AMPLITUD DE UNA SEÑAL DE VIDEO Y POR TANTO EL CONTRASTE DE UNA IMAGEN EN PANTALLA. EL CONTROL DEL CONTRASTE EN RESPUESTA A LAS CONDICIONES AMBIENTALES DE LUZ SE REALIZA POR MEDIO DE UNA RESISTENCIA (52) VARIABLE CON LA ILUMINACION QUE MODIFICA LA TENSION DE SALIDA DEL BRM (24) EN UN NODO (A) DE SALIDA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/034,444 US4799107A (en) | 1987-04-06 | 1987-04-06 | Auxiliary gain control apparatus for a television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2050155T3 true ES2050155T3 (es) | 1994-05-16 |
Family
ID=21876457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES88303076T Expired - Lifetime ES2050155T3 (es) | 1987-04-06 | 1988-04-06 | Aparato auxiliar para el control de ganancia de video, p.ej. para un receptor de television. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4799107A (es) |
EP (1) | EP0286386B1 (es) |
JP (1) | JP2640116B2 (es) |
KR (1) | KR960003034B1 (es) |
CA (1) | CA1262569A (es) |
DE (1) | DE3888002T2 (es) |
ES (1) | ES2050155T3 (es) |
FI (1) | FI87504C (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6266423B1 (en) * | 1998-04-15 | 2001-07-24 | Aphex Systems, Ltd. | Microphone output limiter |
US6327708B1 (en) | 1998-09-15 | 2001-12-04 | True Image, L.L.C. | System of absolute measurement for radiological image luminance control |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3928867A (en) * | 1974-05-10 | 1975-12-23 | Gen Electric | Television receiver with picture level control |
US4090216A (en) * | 1976-05-26 | 1978-05-16 | Gte Sylvania Incorporated | Ambient light contrast and color control circuit |
US4511921A (en) * | 1982-06-16 | 1985-04-16 | Rca Corporation | Television receiver with manual and selectively disabled automatic picture control |
US4451849A (en) * | 1982-06-23 | 1984-05-29 | Rca Corporation | Plural operating mode ambient light responsive television picture control |
US4589022A (en) * | 1983-11-28 | 1986-05-13 | General Electric Company | Brightness control system for CRT video display |
US4633320A (en) * | 1984-03-08 | 1986-12-30 | Rca Corporation | Video signal processor with automatic kinescope beam current limiter |
US4573069A (en) * | 1984-03-29 | 1986-02-25 | Rca Corporation | Chrominance fine gain control in a digital television receiver |
-
1987
- 1987-04-06 US US07/034,444 patent/US4799107A/en not_active Expired - Lifetime
-
1988
- 1988-03-30 FI FI881500A patent/FI87504C/fi not_active IP Right Cessation
- 1988-03-31 CA CA000563173A patent/CA1262569A/en not_active Expired
- 1988-04-04 KR KR1019880003775A patent/KR960003034B1/ko not_active IP Right Cessation
- 1988-04-05 JP JP63084964A patent/JP2640116B2/ja not_active Expired - Fee Related
- 1988-04-06 DE DE3888002T patent/DE3888002T2/de not_active Expired - Fee Related
- 1988-04-06 ES ES88303076T patent/ES2050155T3/es not_active Expired - Lifetime
- 1988-04-06 EP EP88303076A patent/EP0286386B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FI87504B (fi) | 1992-09-30 |
FI87504C (fi) | 1993-01-11 |
FI881500A (fi) | 1988-10-07 |
FI881500A0 (fi) | 1988-03-30 |
JP2640116B2 (ja) | 1997-08-13 |
EP0286386B1 (en) | 1994-03-02 |
DE3888002T2 (de) | 1994-09-08 |
CA1262569A (en) | 1989-10-31 |
KR880013399A (ko) | 1988-11-30 |
EP0286386A2 (en) | 1988-10-12 |
JPS63263883A (ja) | 1988-10-31 |
EP0286386A3 (en) | 1989-11-08 |
KR960003034B1 (ko) | 1996-03-02 |
DE3888002D1 (de) | 1994-04-07 |
US4799107A (en) | 1989-01-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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