DE69025250D1 - Rauschunterdrückungsschaltungen für Videosignale - Google Patents

Rauschunterdrückungsschaltungen für Videosignale

Info

Publication number
DE69025250D1
DE69025250D1 DE69025250T DE69025250T DE69025250D1 DE 69025250 D1 DE69025250 D1 DE 69025250D1 DE 69025250 T DE69025250 T DE 69025250T DE 69025250 T DE69025250 T DE 69025250T DE 69025250 D1 DE69025250 D1 DE 69025250D1
Authority
DE
Germany
Prior art keywords
noise reduction
video signals
reduction circuits
circuits
video
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 - Fee Related
Application number
DE69025250T
Other languages
English (en)
Other versions
DE69025250T2 (de
Inventor
Etsurou Sakamoto
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
Application filed by Sony Corp filed Critical Sony Corp
Publication of DE69025250D1 publication Critical patent/DE69025250D1/de
Application granted granted Critical
Publication of DE69025250T2 publication Critical patent/DE69025250T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • 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
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/911—Television signal processing therefor for the suppression of noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/923—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback using preemphasis of the signal before modulation and deemphasis of the signal after demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
DE69025250T 1989-09-27 1990-08-31 Rauschunterdrückungsschaltungen für Videosignale Expired - Fee Related DE69025250T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1249030A JPH03112275A (ja) 1989-09-27 1989-09-27 雑音低減回路

Publications (2)

Publication Number Publication Date
DE69025250D1 true DE69025250D1 (de) 1996-03-21
DE69025250T2 DE69025250T2 (de) 1996-06-20

Family

ID=17186961

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69025250T Expired - Fee Related DE69025250T2 (de) 1989-09-27 1990-08-31 Rauschunterdrückungsschaltungen für Videosignale

Country Status (5)

Country Link
US (1) US5105274A (de)
EP (1) EP0420418B1 (de)
JP (1) JPH03112275A (de)
KR (1) KR910006964A (de)
DE (1) DE69025250T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2548448B2 (ja) * 1990-10-05 1996-10-30 松下電器産業株式会社 多次元非線形信号処理装置
GB9301336D0 (en) * 1993-01-23 1993-03-17 Ark Geophysics Limited A method of noise reduction applicable to continuous-field and other data acquired along lines
US5841491A (en) * 1993-10-14 1998-11-24 Envision Medical Corp. Fiberscope enhancement system
DE69709451T2 (de) * 1996-02-05 2002-08-29 Koninkl Philips Electronics Nv Bilddatengeräuschfilterung
US6077273A (en) 1996-08-23 2000-06-20 Scimed Life Systems, Inc. Catheter support for stent delivery
US7009662B2 (en) * 2000-03-24 2006-03-07 Koninklijke Philips Electronics N.V. Electronic circuit and method for enhancing an image
JP4151243B2 (ja) * 2001-07-26 2008-09-17 三菱電機株式会社 マルチパスノイズ除去方法および除去装置、ｆｍ受信機
JP4627940B2 (ja) 2001-09-11 2011-02-09 パナソニック株式会社 ノイズ低減装置、及びノイズ低減方法
KR100702238B1 (ko) * 2005-07-04 2007-04-03 삼성전자주식회사 영상처리장치 및 영상처리방법

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875584A (en) * 1973-10-17 1975-04-01 Nasa Television noise reduction device
JPS5667975A (en) * 1979-11-07 1981-06-08 Hitachi Ltd Preparation method of displacement changer
US4400721A (en) * 1981-07-13 1983-08-23 Albert Macovski Transition system for color television receivers
US4463375A (en) * 1982-09-07 1984-07-31 The Board Of Trustees Of The Leland Standford Junior University Multiple-measurement noise-reducing system
CA1202413A (en) * 1983-04-07 1986-03-25 Shintaro Nakagaki Noise reduction circuit for a video signal
JPS60116290A (ja) * 1983-11-28 1985-06-22 Victor Co Of Japan Ltd 映像信号の雑音低減回路
KR890004220B1 (ko) * 1984-06-30 1989-10-27 마쯔시다덴기산교 가부시기가이샤 영상신호 처리장치
JPS6125377A (ja) * 1984-07-13 1986-02-04 Victor Co Of Japan Ltd ノイズリダクシヨン回路
US4703343A (en) * 1984-12-25 1987-10-27 Matsushita Electric Industrial Co., Ltd. Noise reduction feedback type comb filter
JPH0669215B2 (ja) * 1985-06-12 1994-08-31 株式会社日立製作所 テレビジヨン受像機の垂直輪郭強調回路
US4748498A (en) * 1985-11-19 1988-05-31 Matsushita Electric Industrial Co., Ltd. Luminance signal processing circuit with recursive filter for reducing noise while retaining a high vertical resolution
JPS6318811A (ja) * 1986-07-11 1988-01-26 Victor Co Of Japan Ltd 雑音低減回路
EP0254512B1 (de) * 1986-07-21 1993-01-27 Victor Company Of Japan, Limited Vorrichtung zum Aufzeichnen und Wiedergeben für ein Videosignal
US4849826A (en) * 1986-11-14 1989-07-18 Matsushita Electric Industrial Co., Ltd. Digital non-linear pre-emphasis/de-emphasis apparatus for eliminating noise components from video signals in a video signal processing system
US4831435A (en) * 1986-11-29 1989-05-16 Samsung Electronics Co., Ltd. Adaptive scanning line converting circuit for a television receiver
JPS63232578A (ja) * 1987-03-19 1988-09-28 Sony Corp ノイズ低減回路
JPS63233677A (ja) * 1987-03-20 1988-09-29 Sony Corp ノイズ低減回路
JPS63260276A (ja) * 1987-04-16 1988-10-27 Victor Co Of Japan Ltd 画質改善装置
JPS63268376A (ja) * 1987-04-27 1988-11-07 Hitachi Ltd テレビ信号処理回路
US4864404A (en) * 1987-05-22 1989-09-05 Victor Company Of Japan, Ltd. Noise reduction circuit of a video signal
US4860105A (en) * 1987-05-22 1989-08-22 Victor Company Of Japan, Ltd. Noise Reducing circuit of a video signal
JP2508442B2 (ja) * 1987-06-09 1996-06-19 ソニー株式会社 ノイズ除去回路

Also Published As

Publication number Publication date
KR910006964A (ko) 1991-04-30
US5105274A (en) 1992-04-14
JPH03112275A (ja) 1991-05-13
EP0420418B1 (de) 1996-02-07
DE69025250T2 (de) 1996-06-20
EP0420418A2 (de) 1991-04-03
EP0420418A3 (en) 1992-10-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee