DE69026441D1 - Adaptive Kammfilter und Verfahren zum Trennen von Videosignal-Komponenten - Google Patents

Adaptive Kammfilter und Verfahren zum Trennen von Videosignal-Komponenten

Info

Publication number
DE69026441D1
DE69026441D1 DE69026441T DE69026441T DE69026441D1 DE 69026441 D1 DE69026441 D1 DE 69026441D1 DE 69026441 T DE69026441 T DE 69026441T DE 69026441 T DE69026441 T DE 69026441T DE 69026441 D1 DE69026441 D1 DE 69026441D1
Authority
DE
Germany
Prior art keywords
video signal
signal components
comb filter
separating video
adaptive comb
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
DE69026441T
Other languages
English (en)
Other versions
DE69026441T2 (de
Inventor
Masahura Tokuhara
Hiroyuki Kita
Hidefumi Naito
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.)
Sony Corp
Original Assignee
Sony Corp
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 JP1207459A external-priority patent/JP2773276B2/ja
Priority claimed from JP1211629A external-priority patent/JP2784809B2/ja
Priority claimed from JP21626389A external-priority patent/JP2926772B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of DE69026441D1 publication Critical patent/DE69026441D1/de
Application granted granted Critical
Publication of DE69026441T2 publication Critical patent/DE69026441T2/de
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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H21/002—Filters with a particular frequency response
    • H03H21/0023—Comb filters
    • 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
    • H04N9/646—Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H2021/007—Computation saving measures; Accelerating measures
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H2021/007—Computation saving measures; Accelerating measures
    • H03H2021/0072—Measures relating to the coefficients
    • H03H2021/0074—Reduction of the update frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
DE69026441T 1989-08-10 1990-08-08 Adaptive Kammfilter und Verfahren zum Trennen von Videosignal-Komponenten Expired - Lifetime DE69026441T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1207459A JP2773276B2 (ja) 1989-08-10 1989-08-10 コムフィルタ
JP1211629A JP2784809B2 (ja) 1989-08-17 1989-08-17 コムフィルタ
JP21626389A JP2926772B2 (ja) 1989-08-23 1989-08-23 コムフィルタ

Publications (2)

Publication Number Publication Date
DE69026441D1 true DE69026441D1 (de) 1996-05-15
DE69026441T2 DE69026441T2 (de) 1996-10-31

Family

ID=27328761

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69026441T Expired - Lifetime DE69026441T2 (de) 1989-08-10 1990-08-08 Adaptive Kammfilter und Verfahren zum Trennen von Videosignal-Komponenten

Country Status (5)

Country Link
US (1) US5093715A (de)
EP (1) EP0412790B1 (de)
KR (1) KR100265658B1 (de)
DE (1) DE69026441T2 (de)
SG (1) SG63627A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920010787B1 (ko) * 1990-06-09 1992-12-17 삼성전자 주식회사 휘도 및 색신호 분리회로
JPH04252696A (ja) * 1991-01-29 1992-09-08 Matsushita Electric Ind Co Ltd 輝度信号色信号分離装置
JP3263791B2 (ja) * 1992-09-30 2002-03-11 ソニー株式会社 Ｙｃ分離回路
KR0123768B1 (ko) * 1992-10-20 1997-11-26 윤종용 적응형이차원휘도/색신호분리방법및장치
US5473389A (en) * 1992-11-10 1995-12-05 Sony Corporation Y/C separator using 3-D, 2-D and 1-D filters
JP3216364B2 (ja) * 1993-10-21 2001-10-09 松下電器産業株式会社 Ｙ／ｃ分離装置
JP3509379B2 (ja) * 1996-04-19 2004-03-22 松下電器産業株式会社 ２ラインｙｃ分離装置
US6055024A (en) * 1998-09-02 2000-04-25 Rockwell Semiconductor Systems, Inc. Adaptive method for Y-C separation in video signals
JP2003319411A (ja) * 2002-04-19 2003-11-07 Matsushita Electric Ind Co Ltd 信号処理装置
KR100761835B1 (ko) 2006-02-03 2007-09-28 삼성전자주식회사 색차신호의 노이즈를 감소시키는 비디오 디코더
US8026980B2 (en) * 2006-10-06 2011-09-27 Broadcom Corporation Method and system for improving video combing decisions

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2054313B (en) * 1977-04-15 1983-06-29 British Broadcasting Corp Ntsc colour television signal processing
JPH0644829B2 (ja) * 1985-10-14 1994-06-08 株式会社日立製作所 Ｙ・ｃ分離回路
JP2506669B2 (ja) * 1986-07-08 1996-06-12 松下電器産業株式会社 Ｐａｌ輝度信号色信号分離装置
US4766487A (en) * 1986-08-13 1988-08-23 Sony Corporation Chrominance signal processing circuit
JPS63141490A (ja) * 1986-12-03 1988-06-13 Toshiba Corp 適応型ｙ／ｃ分離回路
JPH0714220B2 (ja) * 1987-06-12 1995-02-15 パイオニア株式会社 Ｙ／ｃ分離回路
US4809060A (en) * 1987-09-10 1989-02-28 Rca Licensing Corporation Hanging dot reduction arrangement
JP2737146B2 (ja) * 1988-04-08 1998-04-08 ソニー株式会社 カラー映像信号の動き検出回路
JPH0271693A (ja) * 1988-09-06 1990-03-12 Sony Corp 輝度／クロマ分離回路
JP3494781B2 (ja) * 1995-11-24 2004-02-09 株式会社トクヤマ 化粧材の取り付け方法

Also Published As

Publication number Publication date
KR100265658B1 (ko) 2000-09-15
KR910005705A (ko) 1991-03-30
SG63627A1 (en) 1999-03-30
EP0412790A2 (de) 1991-02-13
EP0412790B1 (de) 1996-04-10
US5093715A (en) 1992-03-03
EP0412790A3 (en) 1991-11-13
DE69026441T2 (de) 1996-10-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition