ES2035159T3 - Procedimiento para el restablecimiento del valor de tension continua en videosenales, asi como disposicion. - Google Patents

Procedimiento para el restablecimiento del valor de tension continua en videosenales, asi como disposicion.

Info

Publication number
ES2035159T3
ES2035159T3 ES88109368T ES88109368T ES2035159T3 ES 2035159 T3 ES2035159 T3 ES 2035159T3 ES 88109368 T ES88109368 T ES 88109368T ES 88109368 T ES88109368 T ES 88109368T ES 2035159 T3 ES2035159 T3 ES 2035159T3
Authority
ES
Spain
Prior art keywords
video
voltage value
continuous voltage
tca
signal
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
ES88109368T
Other languages
English (en)
Inventor
Klaus Dipl.-Ing. Drinda
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.)
Bosch Telecom GmbH
Original Assignee
ANT Nachrichtentechnik GmbH
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 ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Application granted granted Critical
Publication of ES2035159T3 publication Critical patent/ES2035159T3/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Amplifiers (AREA)

Abstract

PARA RENOVACION DEL VALOR DE TENSION CONTINUA EN SEÑALES DE VIDEO SE EMPRENDIA HASTA AHORA UNA EXPLORACION DE SEÑAL Y UNA INTEGRACION. DURANTE EL PERIODO DE ENCAJAMIENTO DE VIDEO SE MANTENIA EL VALOR DE REFERENCIA. PARA RENOVACION DEL VALOR DE TENSION CONTINUA DE SEÑALES DE VIDEO SE UTILIZA AHORA UN AMPLIFICADOR DE TRANSCONDUCTANCIA (TCA) CUYA TENSION SE TRANSFORMA PARA EL AJUSTE DEL PUNTO DE TRABAJO (BIAS) EN LA CADENCIA DE IMPULSOS DE ENCAJAMIENTO DE VIDEO (KL). LA SEÑAL DE SALIDA DEL AMPLIFICADOR DE TRANSCONDUCTANCIA (TCA) SE LLEVA A UN CONDENSADOR DE SOPORTE, SE INTEGRA Y SE UTILIZA COMO SEÑAL DE CONTRAACOPLAMIENTO PARA EL AMPLIFICADOR DE TRANSCONDUCTANCIA (TCA). EL BORRAMIENTO DE SOPORTE DE SEÑALES DE VIDEO SE PERMITE EN MAS DE 55 DB Y LAS SEÑALES NOCIVAS DE BAJA FRECUENCIA COMO PARTES DE ZUMBIDOS EN LA FRECUENCIA DE BASE PUEDEN ELIMINARSE EN MAS DE 40 DB.
ES88109368T 1988-05-09 1988-06-13 Procedimiento para el restablecimiento del valor de tension continua en videosenales, asi como disposicion. Expired - Lifetime ES2035159T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88107417A EP0341326A1 (de) 1988-05-09 1988-05-09 Verfahren zur Wiederherstellung des Gleichspannungswertes bei Videosignalen sowie Anordnung

Publications (1)

Publication Number Publication Date
ES2035159T3 true ES2035159T3 (es) 1993-04-16

Family

ID=8198959

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88109368T Expired - Lifetime ES2035159T3 (es) 1988-05-09 1988-06-13 Procedimiento para el restablecimiento del valor de tension continua en videosenales, asi como disposicion.

Country Status (3)

Country Link
EP (2) EP0341326A1 (es)
DE (1) DE3875339D1 (es)
ES (1) ES2035159T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670068A1 (fr) * 1990-11-30 1992-06-05 Philips Electronics Nv Dispositif d'alignement pour signal en bande de base.
GB2250885B (en) * 1990-12-13 1994-07-20 Motorola Inc Clamp circuit
FR2755323A1 (fr) * 1996-10-25 1998-04-30 Philips Electronics Nv Dispositif de conversion analogique/numerique
FR2755326A1 (fr) * 1996-10-25 1998-04-30 Philips Electronics Nv Dispositif de conversion analogique/numerique a dynamique d'entree regulee

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2507231B1 (de) * 1975-02-20 1976-05-20 Bosch Gmbh Robert Schaltungsanordnung zur Wiedereinfuehrung des Gleichspannungsanteils in einem Videosignal
NL8200670A (nl) * 1982-02-19 1983-09-16 Philips Nv Voorversterker.
US4549214A (en) * 1983-11-07 1985-10-22 Rca Corporation Video signal DC restoration circuit

Also Published As

Publication number Publication date
EP0341339A1 (de) 1989-11-15
EP0341339B1 (de) 1992-10-14
DE3875339D1 (de) 1992-11-19
EP0341326A1 (de) 1989-11-15

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