ES2112370T3 - Circuito de filtro de peine en el canal de crominancia del lado de reproduccion de un grabador de video. - Google Patents

Circuito de filtro de peine en el canal de crominancia del lado de reproduccion de un grabador de video.

Info

Publication number
ES2112370T3
ES2112370T3 ES93116794T ES93116794T ES2112370T3 ES 2112370 T3 ES2112370 T3 ES 2112370T3 ES 93116794 T ES93116794 T ES 93116794T ES 93116794 T ES93116794 T ES 93116794T ES 2112370 T3 ES2112370 T3 ES 2112370T3
Authority
ES
Spain
Prior art keywords
signal
comb filter
envelope curve
filter circuit
circuit
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
ES93116794T
Other languages
English (en)
Inventor
Gerd Reime
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.)
Nokia Technology GmbH
Original Assignee
Nokia Technology 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 Nokia Technology GmbH filed Critical Nokia Technology GmbH
Application granted granted Critical
Publication of ES2112370T3 publication Critical patent/ES2112370T3/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
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
    • H04N9/7917—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being cross-talk signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

LA INVENCION SE REFIERE A UN CIRCUITO (1) DE FILTRO DE PEINE CON UN FILTRO (3) CONOCIDO QUE CONTIENE A SU VEZ UN CIRCUITO PARA LA DETECCION DE BORDES DE COLOR HORIZONTALES. PARA ELLO SE OBTIENEN SEÑALES (SF2,SF3) ENVOLVENTES A PARTIR DE LA SEÑAL (SB) DE ADICION Y DE LA SEÑAL (SC) DE SUSTRACCION DE LAS SEÑALES (SI) DE REPRODUCCION-CROMINANCIA RETARDADAS EN MODULADORES (23,15) ENVOLVENTES Y SIENDO OBTENIDOS EN UN CIRCUITO (38) DIFERENCIAL A PARTIR DE LA COMPARACION DE LAS SEÑALES ENVOLVENTES EN UNA SEÑAL (ST) DE AJUSTE, EFECTUANDOSE EL PROCESO DE AJUSTE POR MEDIO DE UN DISPOSITIVO (40) DE MEZCLA ELECTRONICA AJUSTABLE EN LA SALIDA (29) DE LA SEÑAL QUE DETERMINA LA PORCION DE LA SEÑAL CORRESPONDIENTE A LA SEÑAL DE CROMINANCIA-REPRODUCCION RETARDADA Y NO RETARDADA. PARA GARANTIZAR UNA DETECCION IMPECABLE, INCLUSO EN CONDICIONES DE SERVICIO EN LAS QUE APARECE UNA DIAFONIA ALTA, DE FORMA ADICIONAL UN FILTRO (31) PEINE ESTA CONECTADO EN EL CAMINO DE LA SEÑAL (SC) DE SUSTRACCION, QUE ELIMINA LOS COMPONENTES DE DIAFONIA EN ESTE CAMINO DE SEÑAL DE MODO AMPLIO.
ES93116794T 1992-10-24 1993-10-18 Circuito de filtro de peine en el canal de crominancia del lado de reproduccion de un grabador de video. Expired - Lifetime ES2112370T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4236019A DE4236019A1 (de) 1992-10-24 1992-10-24 Kammfilterschaltung im wiedergabeseitigen Farbartkanal eines Videorecorders

Publications (1)

Publication Number Publication Date
ES2112370T3 true ES2112370T3 (es) 1998-04-01

Family

ID=6471314

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93116794T Expired - Lifetime ES2112370T3 (es) 1992-10-24 1993-10-18 Circuito de filtro de peine en el canal de crominancia del lado de reproduccion de un grabador de video.

Country Status (7)

Country Link
US (1) US5392127A (es)
EP (1) EP0595152B1 (es)
JP (1) JPH0715746A (es)
AT (1) ATE161379T1 (es)
DE (2) DE4236019A1 (es)
DK (1) DK0595152T3 (es)
ES (1) ES2112370T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953252A2 (en) * 1997-11-20 1999-11-03 Koninklijke Philips Electronics N.V. Circuit arrangement for processing a video signal, including means for avoiding a vertical color shift at horizontal color transitions
JP4815931B2 (ja) 2005-08-01 2011-11-16 セイコーエプソン株式会社 紙切断装置およびプリンタ

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE206521C (es) *
DE2263678B2 (de) * 1971-12-27 1976-04-29 Hitachi, Ltd., Tokio Schaltung zur auftrennung des ntsc-farbfernsehsignals
GB2066615B (en) * 1979-12-11 1983-12-14 Questech Ltd Colour television decoding apparatus
DD206521A3 (de) * 1981-10-19 1984-01-25 Rudolf Irmler Schaltungsanordnung zur verminderung von stoerungen im farbkanal bei videospeichergeraeten insbesondere fuer secam-signale
GB2196509B (en) * 1986-10-17 1990-07-11 Sony Corp Circuit for processing colour video signal
JPS63292796A (ja) * 1987-05-25 1988-11-30 Victor Co Of Japan Ltd 再生搬送色信号処理回路
DE3861112D1 (de) * 1987-06-23 1991-01-03 Victor Company Of Japan Spannungsgeregeltes kammfilter.
DE3939520A1 (de) * 1989-11-30 1991-06-06 Nokia Unterhaltungselektronik Schaltung zum rueckgewinnen des chroma-signales
DE4022923A1 (de) * 1990-07-19 1992-01-23 Nokia Unterhaltungselektronik Verfahren zur wiedergabe auf ein videoband eines videorecorders aufgezeichneter farbbilder
DE4115213A1 (de) * 1991-05-10 1992-11-12 Nokia Deutschland Gmbh Kammfilterschaltung im wiedergabeseitigen farbartkanal eines videorecorders

Also Published As

Publication number Publication date
EP0595152A1 (de) 1994-05-04
US5392127A (en) 1995-02-21
ATE161379T1 (de) 1998-01-15
JPH0715746A (ja) 1995-01-17
DE59307853D1 (de) 1998-01-29
DE4236019A1 (de) 1994-04-28
EP0595152B1 (de) 1997-12-17
DK0595152T3 (da) 1998-03-30

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