ES2040960T3 - Circuito para un filtro peine adaptativo para separar la senal de luminancia y la senal de crominancia de una senal fbas-pal o ntsc. - Google Patents

Circuito para un filtro peine adaptativo para separar la senal de luminancia y la senal de crominancia de una senal fbas-pal o ntsc.

Info

Publication number
ES2040960T3
ES2040960T3 ES198989118869T ES89118869T ES2040960T3 ES 2040960 T3 ES2040960 T3 ES 2040960T3 ES 198989118869 T ES198989118869 T ES 198989118869T ES 89118869 T ES89118869 T ES 89118869T ES 2040960 T3 ES2040960 T3 ES 2040960T3
Authority
ES
Spain
Prior art keywords
signal
chrominance
pct
chrominance component
comb filter
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
ES198989118869T
Other languages
English (en)
Inventor
Helmut Dipl.-Ing. Sowig
Michael Dipl.-Ing. Zahm
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt 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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Application granted granted Critical
Publication of ES2040960T3 publication Critical patent/ES2040960T3/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
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

EN UN FILTRO DE IMBRICACION PARA LA SEPARACION DE LA SEÑAL DE LUMINANCIA Y DE LA SEÑAL DE CROMINANCIA DE UNA SEÑAL FBAS SE DEBEN EVITAR AMPLIAMENTE LAS PERTURBACIONES, CUANDO SE PRODUCEN EN LA IMAGEN SALTOS DE SEÑAL Y TRANSICIONES DE COLOR DE ALTA FRECUENCIA EN EL SENTIDO VERTICAL. CON UN CIRCUITO DE EVALUACION (6) SE GENERA A PARTIR DE LA COMPARACION DE FASES DE LAS SEÑALES (S1,S2,S3) APLICADAS A DOS LINEAS DE RETRADO 1H, CONECTADAS EN SERIE, UNA SEÑAL DE CONEXION CON LA QUE SE CONECTA A LA ETAPA DE SUSTRACCION (3), QUE GENERA LA SEÑAL DE LUMINANCIA, LA SEÑAL DE CROMINANCIA (C) NO RETARDADA EN LUGAR DE LA SEÑAL DE CROMINANCIA (C1) FILTRADA EN EL FILTRO DE IMBRICACION. EL CIRCUITO SE PRESTA EN ESPECIAL PARA MEJORAR LOS SISTEMAS DE TRANSMISION PAL, COMO POR EJEMPLO S-VHS Y HDTV
ES198989118869T 1988-10-20 1989-10-11 Circuito para un filtro peine adaptativo para separar la senal de luminancia y la senal de crominancia de una senal fbas-pal o ntsc. Expired - Lifetime ES2040960T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3836043A DE3836043A1 (de) 1988-10-20 1988-10-20 Schaltung fuer ein adaptives kammfilter zur trennung von leuchtdichtesignal und farbartsignal eines fbas-pal-signals

Publications (1)

Publication Number Publication Date
ES2040960T3 true ES2040960T3 (es) 1993-11-01

Family

ID=6365704

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198989118869T Expired - Lifetime ES2040960T3 (es) 1988-10-20 1989-10-11 Circuito para un filtro peine adaptativo para separar la senal de luminancia y la senal de crominancia de una senal fbas-pal o ntsc.

Country Status (11)

Country Link
US (1) US5173768A (es)
EP (2) EP0414830A1 (es)
JP (1) JPH04501347A (es)
KR (1) KR0138101B1 (es)
AT (1) ATE88849T1 (es)
AU (1) AU4493789A (es)
DE (2) DE3836043A1 (es)
DK (1) DK69691D0 (es)
ES (1) ES2040960T3 (es)
HK (1) HK135693A (es)
WO (1) WO1990004906A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022923A1 (de) * 1990-07-19 1992-01-23 Nokia Unterhaltungselektronik Verfahren zur wiedergabe auf ein videoband eines videorecorders aufgezeichneter farbbilder
DE69230030T2 (de) * 1991-11-15 2000-02-24 Snell & Wilcox Ltd Farbfernsehverarbeitungsschaltung
GB2266633B (en) * 1992-03-30 1995-12-13 Snell & Wilcox Ltd Filter with improved pulse response
FI92129C (fi) * 1992-08-20 1994-09-26 Salon Televisiotehdas Oy Kytkentäjärjestely ristivärin detektoimiseen
JP3263791B2 (ja) * 1992-09-30 2002-03-11 ソニー株式会社 Ｙｃ分離回路
EP0613311A1 (en) * 1993-02-26 1994-08-31 Kabushiki Kaisha Toshiba Y/C separating circuit
GB9319725D0 (en) * 1993-09-24 1993-11-10 Snell & Wilcox Ltd Video signal processing
US5534947A (en) * 1994-05-16 1996-07-09 Motorola, Inc. Advanced comb filter
KR100402244B1 (ko) 2001-04-16 2003-10-17 주식회사 하이닉스반도체 연속에러신호를 이용한 엔티이에스씨이 신호 제거 필터의선택 장치 및 방법

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE113287C (es) *
DD113287A1 (es) * 1974-07-09 1975-05-20
US4050084A (en) * 1976-07-14 1977-09-20 Cbs Inc. Comb filter for television signals having adaptive features
DE2911927C2 (de) * 1979-03-27 1981-03-12 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth Automatisch abschaltbares SECAM-Kammfilter
JPS55150688A (en) * 1979-05-15 1980-11-22 Sony Corp Separating circuit of color video signal
US4240105A (en) * 1979-08-20 1980-12-16 Yves C. Faroudja Method and apparatus for separation of chrominance and luminance with adaptive comb filtering in a quadrature modulated color television system
US4636840A (en) * 1984-08-09 1987-01-13 Rca Corporation Adaptive luminance-chrominance separation apparatus
JPS6175694A (ja) * 1984-08-10 1986-04-18 Mitsubishi Electric Corp ダイナミツク輝度信号・色信号分離くし形フイルタ
GB8500658D0 (en) * 1985-01-11 1985-02-13 Quantel Ltd Pal decoders
JPS61186095A (ja) * 1985-02-13 1986-08-19 Mitsubishi Electric Corp 適応型輝度信号色信号分離フイルタ
US4734758A (en) * 1985-04-25 1988-03-29 Matsushita Electric Industrial Co., Ltd. Signal processing circuit
US4688080A (en) * 1985-09-27 1987-08-18 Ampex Corporation Multi-standard adaptive chrominance separator
JPH0644829B2 (ja) * 1985-10-14 1994-06-08 株式会社日立製作所 Ｙ・ｃ分離回路
GB2203917B (en) * 1987-03-27 1991-10-30 Roger Neil Robinson Improved encoder for television signals
JPH03112288A (ja) * 1989-09-27 1991-05-13 Toshiba Corp 映像信号処理回路
KR910013951A (ko) * 1989-12-12 1991-08-08 이헌조 복합영상신호의 휘도/색도신호 분리회로

Also Published As

Publication number Publication date
EP0414830A1 (de) 1991-03-06
KR0138101B1 (en) 1998-05-15
AU4493789A (en) 1990-05-14
JPH04501347A (ja) 1992-03-05
ATE88849T1 (de) 1993-05-15
WO1990004906A1 (de) 1990-05-03
US5173768A (en) 1992-12-22
DK69691A (da) 1991-04-18
EP0368013A1 (de) 1990-05-16
DE58904202D1 (de) 1993-06-03
HK135693A (en) 1993-12-17
EP0368013B1 (de) 1993-04-28
DE3836043A1 (de) 1990-04-26
DK69691D0 (da) 1991-04-18

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