ES2084079T3 - Aparato para el procesamiento de señales de video divididas en lineas con una fase de separacion sincrona digital. - Google Patents
Aparato para el procesamiento de señales de video divididas en lineas con una fase de separacion sincrona digital.Info
- Publication number
- ES2084079T3 ES2084079T3 ES91116607T ES91116607T ES2084079T3 ES 2084079 T3 ES2084079 T3 ES 2084079T3 ES 91116607 T ES91116607 T ES 91116607T ES 91116607 T ES91116607 T ES 91116607T ES 2084079 T3 ES2084079 T3 ES 2084079T3
- Authority
- ES
- Spain
- Prior art keywords
- line
- measuring
- video signals
- processing video
- black level
- 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
- H04N5/14—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
- H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
- H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/08—Separation of synchronising signals from picture signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Synchronizing For Television (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
EL APARATO PRESENTA UN DISPOSITIVO PARA LA FORMACION DE UN UMBRAL DE SEPARACION DE SINCRONIZACION. EL DISPOSITIVO CONTIENE DISPOSICIONES DE MEDIDA (23, 24, 25, 26), CON LAS CUALES SE PUEDEN DETERMINAR VALORES DE MEDIDA PARA EL NIVEL DEL NEGRO Y EL VALOR SINCRONO DE UNA SEÑAL DE VIDEO SEGUN UNA MEDICION ESTIMADA Y SEGUN UN METODO DE MEDICION EXACTO RESPECTIVAMENTE. DEPENDIENDO DEL ESTADO DE ENCASTRE DE UN CIRCUITO DE REGULACION DE FASES (11) CONECTADO A CONTINUACION, SE SELECCIONAN O BIEN LOS VALORES DE MEDIDA OBTENIDOS SEGUN EL SISTEMA DE ESTIMACION, O BIEN SEGUN EL METODO EXACTO. EL VALOR DE MEDIDA PARA EL NIVEL DEL NEGRO ES CONDUCIDO A UN PRIMER DISPOSITIVO DE REGULACION (27), Y ES UTILIZADO PARA LA FIJACION DE LA SEÑAL DE VIDEO. DE LOS VALORES DE MEDIDA PARA EL NIVEL DEL NEGRO Y EL VALOR SINCRONO, SE FORMA UN VALOR MEDIO (50), QUE ES CONDUCIDO A UN SEGUNDO DISPOSITIVO DE REGULACION (21). LA SEÑAL DE SALIDA DEL SEGUNDO DISPOSITIVO ES EL UMBRAL DE SEPARACION DE SINCRONIZACION (41).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19910116607 EP0533997B1 (de) | 1991-09-27 | 1991-09-27 | Gerät zum Verarbeiten von in Zeilen aufgeteilten Videosignalen mit einer digitalen Synchronabtrennstufe |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2084079T3 true ES2084079T3 (es) | 1996-05-01 |
Family
ID=8207222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES91116607T Expired - Lifetime ES2084079T3 (es) | 1991-09-27 | 1991-09-27 | Aparato para el procesamiento de señales de video divididas en lineas con una fase de separacion sincrona digital. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0533997B1 (es) |
JP (1) | JPH05219402A (es) |
DE (1) | DE59107587D1 (es) |
ES (1) | ES2084079T3 (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960028179A (ko) * | 1994-12-06 | 1996-07-22 | 조셉 제이 락스 | 적응 동기 신호 분리기 |
JP2006203473A (ja) * | 2005-01-19 | 2006-08-03 | Nec Electronics Corp | 同期検出回路 |
JP4731204B2 (ja) * | 2005-05-20 | 2011-07-20 | 三菱電機株式会社 | 同期分離装置およびスライスレベルの決定方法 |
JP5237606B2 (ja) * | 2007-10-10 | 2013-07-17 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 同期分離回路 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4697211A (en) * | 1986-04-30 | 1987-09-29 | Rca Corporation | Sync separator with periodic updating |
BG47786A1 (en) * | 1988-02-24 | 1990-09-14 | Komitet Za Televizija I Radio | Method and device for precise separation of synchroimpulses |
DE3931860A1 (de) * | 1989-09-23 | 1991-04-04 | Philips Patentverwaltung | Synchronsignal-detektor |
DE3931861A1 (de) * | 1989-09-23 | 1991-04-04 | Philips Patentverwaltung | Digitale schaltungsanordnung zur detektion von synchronisations-impulsen |
-
1991
- 1991-09-27 ES ES91116607T patent/ES2084079T3/es not_active Expired - Lifetime
- 1991-09-27 EP EP19910116607 patent/EP0533997B1/de not_active Expired - Lifetime
- 1991-09-27 DE DE59107587T patent/DE59107587D1/de not_active Expired - Fee Related
-
1992
- 1992-09-24 JP JP27943192A patent/JPH05219402A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE59107587D1 (de) | 1996-04-25 |
JPH05219402A (ja) | 1993-08-27 |
EP0533997B1 (de) | 1996-03-20 |
EP0533997A1 (de) | 1993-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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