DE69122277T2 - Schaltung zur Rauschverminderung für Videosignalaufzeichnungs- und -wiedergabegerät - Google Patents

Schaltung zur Rauschverminderung für Videosignalaufzeichnungs- und -wiedergabegerät

Info

Publication number
DE69122277T2
DE69122277T2 DE69122277T DE69122277T DE69122277T2 DE 69122277 T2 DE69122277 T2 DE 69122277T2 DE 69122277 T DE69122277 T DE 69122277T DE 69122277 T DE69122277 T DE 69122277T DE 69122277 T2 DE69122277 T2 DE 69122277T2
Authority
DE
Germany
Prior art keywords
video signal
noise reduction
reproducing apparatus
signal recording
reduction 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 - Fee Related
Application number
DE69122277T
Other languages
English (en)
Other versions
DE69122277D1 (de
Inventor
Hiroshi Iizuka
Mituzou Shirai
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Application granted granted Critical
Publication of DE69122277D1 publication Critical patent/DE69122277D1/de
Publication of DE69122277T2 publication Critical patent/DE69122277T2/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
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • 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)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Picture Signal Circuits (AREA)
DE69122277T 1990-01-31 1991-01-31 Schaltung zur Rauschverminderung für Videosignalaufzeichnungs- und -wiedergabegerät Expired - Fee Related DE69122277T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2236290 1990-01-31

Publications (2)

Publication Number Publication Date
DE69122277D1 DE69122277D1 (de) 1996-10-31
DE69122277T2 true DE69122277T2 (de) 1997-04-03

Family

ID=12080518

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69122277T Expired - Fee Related DE69122277T2 (de) 1990-01-31 1991-01-31 Schaltung zur Rauschverminderung für Videosignalaufzeichnungs- und -wiedergabegerät

Country Status (4)

Country Link
US (1) US5105275A (de)
EP (1) EP0440242B1 (de)
KR (1) KR100188460B1 (de)
DE (1) DE69122277T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3139798B2 (ja) * 1991-12-10 2001-03-05 株式会社東芝 信号ノイズ低減装置
KR970009467B1 (ko) * 1992-07-21 1997-06-13 니뽕 빅터 가부시끼 가이샤 영상 신호 기록 장치 및 그 재생 장치
EP0580144B1 (de) * 1992-07-21 1999-01-13 Victor Company Of Japan, Limited Vorrichtung zum Aufnehmen und Wiedergeben eines Videosignals mit Signalverarbeitung mit Vor- und Nachverzerrung
JP3054579B2 (ja) * 1995-05-25 2000-06-19 三洋電機株式会社 Ｖｔｒのイコライザ回路
EP0809409B1 (de) * 1996-05-24 2001-08-29 Matsushita Electric Industrial Co., Ltd. Verfahren und Schaltung zur Bestimmung eines Rauschwerts der repräsentativ ist für das Rauschen in einem Signal
US6738734B1 (en) 1996-08-12 2004-05-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Empirical mode decomposition apparatus, method and article of manufacture for analyzing biological signals and performing curve fitting
US6381559B1 (en) * 1996-08-12 2002-04-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Empirical mode decomposition apparatus, method and article of manufacture for analyzing biological signals and performing curve fitting
US6990436B1 (en) 2003-11-28 2006-01-24 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Computing frequency by using generalized zero-crossing applied to intrinsic mode functions

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57138276A (en) * 1981-02-20 1982-08-26 Hitachi Ltd Video signal processing circuit
JPS57211885A (en) * 1981-06-22 1982-12-25 Victor Co Of Japan Ltd Noise reduction circuit
JPS59158684A (ja) * 1983-03-01 1984-09-08 Victor Co Of Japan Ltd 映像信号記録再生装置
JPS6030296A (ja) * 1983-07-29 1985-02-15 Victor Co Of Japan Ltd 映像信号記録装置及び映像信号記録再生装置
JPS6030295A (ja) * 1983-07-29 1985-02-15 Victor Co Of Japan Ltd 搬送色信号の記録再生装置
JPS6030285A (ja) * 1983-07-29 1985-02-15 Victor Co Of Japan Ltd 映像信号記録再生装置
JPS6125377A (ja) * 1984-07-13 1986-02-04 Victor Co Of Japan Ltd ノイズリダクシヨン回路
JPS6184972A (ja) * 1984-10-03 1986-04-30 Hitachi Ltd 映像信号の垂直方向エンフアシス回路
JPS61208670A (ja) * 1985-03-13 1986-09-17 Victor Co Of Japan Ltd ノイズ低減回路
US4750037A (en) * 1985-10-07 1988-06-07 Victor Company Of Japan, Ltd. Noise reduction system for video signal
DE3783820T2 (de) * 1986-07-21 1993-08-26 Victor Company Of Japan Vorrichtung zum aufzeichnen und wiedergeben fuer ein videosignal.
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
KR910014919A (ko) 1991-08-31
DE69122277D1 (de) 1996-10-31
EP0440242A3 (en) 1992-12-09
EP0440242A2 (de) 1991-08-07
EP0440242B1 (de) 1996-09-25
US5105275A (en) 1992-04-14
KR100188460B1 (ko) 1999-06-01

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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