ES2136336T3 - Demodulador de señales de color para receptores de television tipo pal y secam. - Google Patents
Demodulador de señales de color para receptores de television tipo pal y secam.Info
- Publication number
- ES2136336T3 ES2136336T3 ES96104608T ES96104608T ES2136336T3 ES 2136336 T3 ES2136336 T3 ES 2136336T3 ES 96104608 T ES96104608 T ES 96104608T ES 96104608 T ES96104608 T ES 96104608T ES 2136336 T3 ES2136336 T3 ES 2136336T3
- Authority
- ES
- Spain
- Prior art keywords
- signals
- demodulated
- pal
- signal
- secam
- 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
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/642—Multi-standard receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
- H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
- H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
- H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
LAS SEÑALES DE TELEVISION DE TIPO PAL SUMINISTRAN UNA SEÑAL B-Y QUE SE DEMODULAN MEDIANTE PRIMER DEMODULADOR (2) Y UNA SEÑAL R-Y QUE SE DEMODULA MEDIANTE UN SEGUNDO DEMODULADOR (3). UN IMPULSO ADICIONAL QUE TIENE UNA TENSION DADA SE AÑADE A LA SEÑAL B-Y DEMODULADA EN UN PUNTO DADO. POR OTRA PARTE, LAS SEÑALES DE TELEVISION DE TIPO SECAM SUMINISTRAN SEÑALES R-Y Y B-Y QUE SON SECUENCIALMENTE DEMODULADAS MEDIANTE UN DEMODULADOR SECAM (104) PARA CADA LINEA HORIZONTAL. UN IMPULSO ADICIONAL QUE TIENE UNA TENSION DADA SE AÑADE A LA SEÑAL B-Y DEMODULADA EN UN PUNTO DADO. PARA AMBAS SEÑALES DE TELEVISION PAL Y SECAM, LAS SEÑALES DEMODULADAS SON RETARDADAS MEDIANTE UN PRIMER Y UN SEGUNDO CCD''S (8, 9) POR UN PERIODO DE BARRIDO HORIZONTAL. SE SUMINISTRAN UN PRIMER Y UN SEGUNDO CIRCUITO ALC PARA REGULAR EL NIVEL DE TENSION DEL IMPULSO ADICIONAL A SU NIVEL INICIAL. SE SUMINISTRAN UN PRIMER Y UN SEGUNDO SUMADOR (14, 15) PARA AÑADIR LAS SEÑALES RETARDADAS REGULADAS EN NIVEL A LAS SEÑALES NO RETARDADAS PARASUMINISTRAR SEÑALES DE DIFERENCIA DE COLOR DEMODULADAS APROPIADAMENTE B-Y Y R-Y. EN EL SISTEMA PAL, NINGUNO DE LOS COMPONENTE INNECESARIOS DEBIDO A LA DESVIACION DE FASE EN LA SEÑAL DE LA PORTADORA PUEDE CANCELARSE APROPIADAMENTE. EN EL SISTEMA SECAM, EL NIVEL DE LAS SEÑALES DE DIFERENCIA DE COLOR EN UNA LINEA HORIZONTAL FORMADA POR LAS SEÑALES RETARDADAS PUEDE IGUALARSE CON EL NIVEL DE LAS SEÑALES DE DIFERENCIA DE COLOR EN LAS SEÑALES NO RETARDADAS.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP07198495A JP3244398B2 (ja) | 1995-03-29 | 1995-03-29 | Pal方式の色信号復調回路 |
JP07198595A JP3253482B2 (ja) | 1995-03-29 | 1995-03-29 | 色信号復調回路 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2136336T3 true ES2136336T3 (es) | 1999-11-16 |
Family
ID=26413108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96104608T Expired - Lifetime ES2136336T3 (es) | 1995-03-29 | 1996-03-22 | Demodulador de señales de color para receptores de television tipo pal y secam. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0735779B1 (es) |
KR (1) | KR100406451B1 (es) |
CN (1) | CN1100445C (es) |
DE (1) | DE69604107T2 (es) |
ES (1) | ES2136336T3 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007097020A (ja) * | 2005-09-30 | 2007-04-12 | Sanyo Electric Co Ltd | 遅延回路及びそれを用いた映像信号処理回路 |
JP2007097019A (ja) * | 2005-09-30 | 2007-04-12 | Sanyo Electric Co Ltd | 遅延回路及びそれを用いた映像信号処理回路 |
CN106855583B (zh) * | 2015-12-09 | 2020-02-21 | 比亚迪股份有限公司 | 用于图像传感器的方法和装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0364225B1 (en) * | 1988-10-12 | 1996-03-27 | Canon Kabushiki Kaisha | Color signal processing apparatus |
US5272522A (en) * | 1990-04-30 | 1993-12-21 | Thomson Consumer Electronics, Inc. | Video signal processing circuits |
KR940001436B1 (ko) * | 1991-08-20 | 1994-02-23 | 삼성전자 주식회사 | 색상조절회로 |
-
1996
- 1996-03-22 DE DE69604107T patent/DE69604107T2/de not_active Expired - Fee Related
- 1996-03-22 EP EP96104608A patent/EP0735779B1/en not_active Expired - Lifetime
- 1996-03-22 ES ES96104608T patent/ES2136336T3/es not_active Expired - Lifetime
- 1996-03-29 KR KR1019960009125A patent/KR100406451B1/ko not_active IP Right Cessation
- 1996-03-29 CN CN96107252A patent/CN1100445C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1139863A (zh) | 1997-01-08 |
DE69604107T2 (de) | 2000-04-13 |
EP0735779A1 (en) | 1996-10-02 |
KR100406451B1 (ko) | 2004-03-18 |
EP0735779B1 (en) | 1999-09-08 |
CN1100445C (zh) | 2003-01-29 |
DE69604107D1 (de) | 1999-10-14 |
KR960036811A (ko) | 1996-10-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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