ES2070171T3 - Aparato provisto de un dispositivo mejorado de restitucion de la componente continua. - Google Patents

Aparato provisto de un dispositivo mejorado de restitucion de la componente continua.

Info

Publication number
ES2070171T3
ES2070171T3 ES89202825T ES89202825T ES2070171T3 ES 2070171 T3 ES2070171 T3 ES 2070171T3 ES 89202825 T ES89202825 T ES 89202825T ES 89202825 T ES89202825 T ES 89202825T ES 2070171 T3 ES2070171 T3 ES 2070171T3
Authority
ES
Spain
Prior art keywords
signal
coded
correction
continuous component
received
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
Application number
ES89202825T
Other languages
English (en)
Inventor
Philippe Societe Civ Salembier
Pascal Societe Civile S Hayet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR8814685A external-priority patent/FR2638925B1/fr
Priority claimed from FR8907097A external-priority patent/FR2647996B3/fr
Application filed by Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of ES2070171T3 publication Critical patent/ES2070171T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/083—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical and the horizontal blanking interval, e.g. MAC data signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Dc Digital Transmission (AREA)
  • Color Television Systems (AREA)
  • Picture Signal Circuits (AREA)
  • Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

EL APARATO EFECTUA UN TRATAMIENTO DE LA SEÑAL EN UN SISTEMA DE TRANSMISION, LLEVANDO DICHA SEÑAL INFORMACIONES DE LUMINANCIA Y DE CROMINANCIA ANALOGICAS ASOCIADAS A UNOS PERIODOS DE SEÑAL NUMERICA CODIFICADA. SE TRATA, POR EJEMPLO, DE UN RECEPTOR EN UN SISTEMA DE TELEVISION MAC. EL DISPOSITIVO DE RESTITUCION DEL COMPONENTE CONTINUO CONSTA DE UN ORGANO DE CODIFICACION (4) QUE REALIZA, A PARTIR DE LA SEÑAL NUMERICA DECODIFICADA, UNA CODIFICACION IDENTICA A LA UTILIZADA PARA LA CREACION DE LA SEÑAL RECIBIDA, CALCULANDO UN CIRCUITO DE ESTIMACION DEL COMPONENTE CONTINUO (6) DICHA ESTIMACION A PARTIR DE LAS DIFERENCIAS EXISTENTES ENTRE LA SEÑAL CODIFICADA RECIBIDA Y LA SEÑAL CODIFICADA RECONSTRUIDA POR EL ORGANO DE CODIFICACION MENCIONADO, CONSTITUYENDO ESTA ESTIMACION UNA SEÑAL DE CORRECCION DE COMPONENTE CONTINUO, Y UN CIRCUITO SUBSTRACTOR (9) RETRANSMITE A LA SEÑAL RECIBIDA DICHA SEÑAL DE CORRECCION EN TODA LA DURACION DE UNA LINEA. CONSTA ASIMISMO, POR DETRAS DEL DISPOSITIVO (6) QUE SUMINISTRA LA SEÑAL DE CORRECCION DEL COMPONENTE CONTINUO, UN FILTRO (8) QUE UTILIZA LAS SEÑALES DE CORRECCION DE VARIOS PERIODOS DE BARRIDO DE LINEAS A LA VEZ PARA AFINAR LA SEÑAL DE CORRECCION, QUEES DEL TIPO QUE PROPORCIONA RESPUESTA IMPULSADA ACABADA, POR EJEMPLO UN MEDIADOR, Y LA SEÑAL RECIBIDA SE RETARDA (10) PARA COMPENSAR EL RETARDO DEBIDO AL FILTRO, ANTES DE SER LLEVADA AL CIRCUITO SUBSTRACTOR (9).
ES89202825T 1988-11-10 1989-11-08 Aparato provisto de un dispositivo mejorado de restitucion de la componente continua. Expired - Lifetime ES2070171T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8814685A FR2638925B1 (fr) 1988-11-10 1988-11-10 Appareil muni d'un dispositif de restitution de la composante continue ameliore
FR8907097A FR2647996B3 (fr) 1989-05-30 1989-05-30 Appareil muni d'un dispositif de restitution de la composante continue ameliore

Publications (1)

Publication Number Publication Date
ES2070171T3 true ES2070171T3 (es) 1995-06-01

Family

ID=26226981

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89202825T Expired - Lifetime ES2070171T3 (es) 1988-11-10 1989-11-08 Aparato provisto de un dispositivo mejorado de restitucion de la componente continua.

Country Status (7)

Country Link
US (1) US5036388A (es)
EP (1) EP0368417B1 (es)
JP (1) JPH02214269A (es)
KR (1) KR900008880A (es)
DE (1) DE68920953T2 (es)
ES (1) ES2070171T3 (es)
HK (1) HK66896A (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675331A1 (fr) * 1991-04-12 1992-10-16 Philips Electro Grand Public Appareil muni d'un dispositif ameliore de restitution de la composante continue.
CN1243621A (zh) * 1997-09-12 2000-02-02 皇家菲利浦电子有限公司 具有改进的丢失部分重构功能的传输系统
US20030219085A1 (en) * 2001-12-18 2003-11-27 Endres Thomas J. Self-initializing decision feedback equalizer with automatic gain control

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57208770A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Dc level automatic compensating circuit for analog signal repetitively including reference level signal
FR2565448B1 (fr) * 1984-06-04 1986-10-10 France Etat Procede et dispositif d'extraction de synchronisation pour systeme de diffusion a multiplexage temporel de signaux numeriques et analogiques
US4713694A (en) * 1985-09-09 1987-12-15 Hughes Aircraft Company Noninvasive DC restoration to upgrade AC coupled systems
FR2610773B1 (fr) * 1987-02-06 1989-05-26 Radiotechnique Ind & Comm Systeme de synchronisation sur un signal semi-numerique

Also Published As

Publication number Publication date
EP0368417B1 (fr) 1995-02-01
KR900008880A (ko) 1990-06-04
DE68920953D1 (de) 1995-03-16
DE68920953T2 (de) 1995-08-31
JPH02214269A (ja) 1990-08-27
EP0368417A1 (fr) 1990-05-16
US5036388A (en) 1991-07-30
HK66896A (en) 1996-04-26

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