ES2167432T3 - Procedimiento y dispositivo de ajuste para tratamiento de señales de video a transmitir. - Google Patents

Procedimiento y dispositivo de ajuste para tratamiento de señales de video a transmitir.

Info

Publication number
ES2167432T3
ES2167432T3 ES95918024T ES95918024T ES2167432T3 ES 2167432 T3 ES2167432 T3 ES 2167432T3 ES 95918024 T ES95918024 T ES 95918024T ES 95918024 T ES95918024 T ES 95918024T ES 2167432 T3 ES2167432 T3 ES 2167432T3
Authority
ES
Spain
Prior art keywords
clock
treatment
transmit
procedure
adjustment device
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
ES95918024T
Other languages
English (en)
Inventor
Claude Chapel
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.)
Thales SA
Original Assignee
Thomson CSF SA
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
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of ES2167432T3 publication Critical patent/ES2167432T3/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
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/171—Systems operating in the amplitude domain of the television signal
    • H04N7/1713—Systems operating in the amplitude domain of the television signal by modifying synchronisation signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
    • H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Synchronizing For Television (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

EL PROCESO CONSISTE EN EFECTUAR, POR UN BUCLE DE BLOQUEO DE FASE QUE CONTROLA UNA FRECUENCIA DE RELOJ, UN CONTROL DE UNA SEÑAL DE COMPARACION SOBRE EL FRENTE DESCENDENTE DEL IMPULSO DE SINCRONIZACION DE LINEA, EN DECODIFICAR EN LA SALIDA DE UN CONTADOR DE PUNTOS (7) INTEGRADO EN EL BUCLE Y CONTROLADO POR EL RELOJ, POR UNA PARTE UN VALOR N QUE DESENCADENA EL IMPULSO DE COMPARACION (9) Y QUE CORRESPONDE A UNA POSICION DETERMINADA EN EL INTERIOR DEL IMPULSO DE SINCRONIZACION DE LINEA RELATIVAMENTE EN SU FRENTE DESCENDENTE, POR OTRA PARTE VALORES QUE DISPARAN LA REPUESTA A CERO DEL CONTADOR (7) Y DE LAS SEÑALES TEMPORALES (8) SINCRONAS DE RELOJ Y QUE DAN RITMO AL TRATAMIENTO DIGITAL DE LAS SEÑALES DE VIDEO MUESTREADAS A LA FRECUENCIA DEL RELOJ. APLICACION EN LOS APARATOS DE RADIOINTERFERENCIAS.
ES95918024T 1994-04-19 1995-04-18 Procedimiento y dispositivo de ajuste para tratamiento de señales de video a transmitir. Expired - Lifetime ES2167432T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9404638A FR2718915B1 (fr) 1994-04-19 1994-04-19 Procédé et dispositif de calage pour traitement de signaux vidéo à l'émission.

Publications (1)

Publication Number Publication Date
ES2167432T3 true ES2167432T3 (es) 2002-05-16

Family

ID=9462238

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95918024T Expired - Lifetime ES2167432T3 (es) 1994-04-19 1995-04-18 Procedimiento y dispositivo de ajuste para tratamiento de señales de video a transmitir.

Country Status (7)

Country Link
US (1) US5764301A (es)
EP (1) EP0704136B1 (es)
JP (1) JP3765104B2 (es)
DE (1) DE69523710T2 (es)
ES (1) ES2167432T3 (es)
FR (1) FR2718915B1 (es)
WO (1) WO1995028805A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3339620B2 (ja) * 1998-01-29 2002-10-28 日本ビクター株式会社 同期パルス発生装置
US6449017B1 (en) * 1998-12-04 2002-09-10 Ching-Chyi Thomas Chen RGB self-alignment and intelligent clock recovery
US8325757B2 (en) * 2009-12-17 2012-12-04 Silicon Image, Inc. De-encapsulation of data streams into multiple links

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3576630D1 (de) * 1984-09-28 1990-04-19 Toshiba Kawasaki Kk Referenzsignalwiedergabegeraet.
GB9004901D0 (en) * 1990-03-05 1990-05-02 Space Communications Sat Tel L Television scrambler
JPH03284087A (ja) * 1990-03-30 1991-12-13 Matsushita Electric Ind Co Ltd ペイ・テレビ装置
GB2246262B (en) * 1990-05-10 1994-03-02 Pioneer Electronic Corp Television signal scrambling method and apparatus
US5528307A (en) * 1991-07-18 1996-06-18 Canon Kabushiki Kaisha Clock generator
US5600379A (en) * 1994-10-13 1997-02-04 Yves C. Faroudia Television digital signal processing apparatus employing time-base correction

Also Published As

Publication number Publication date
EP0704136B1 (fr) 2001-11-07
FR2718915B1 (fr) 1996-05-15
EP0704136A1 (fr) 1996-04-03
WO1995028805A1 (fr) 1995-10-26
JP3765104B2 (ja) 2006-04-12
FR2718915A1 (fr) 1995-10-20
JPH08512185A (ja) 1996-12-17
US5764301A (en) 1998-06-09
DE69523710T2 (de) 2002-08-01
DE69523710D1 (de) 2001-12-13

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