DE3879758D1 - Schaltung zum reduzieren des geraeusches eines videosignals. - Google Patents

Schaltung zum reduzieren des geraeusches eines videosignals.

Info

Publication number
DE3879758D1
DE3879758D1 DE8888304624T DE3879758T DE3879758D1 DE 3879758 D1 DE3879758 D1 DE 3879758D1 DE 8888304624 T DE8888304624 T DE 8888304624T DE 3879758 T DE3879758 T DE 3879758T DE 3879758 D1 DE3879758 D1 DE 3879758D1
Authority
DE
Germany
Prior art keywords
circuit
video signal
reducing noise
noise
reducing
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
DE8888304624T
Other languages
English (en)
Other versions
DE3879758T2 (de
Inventor
Hironao Sakaguchi
Masaji Yoshida
Yasutoshi Matsuo
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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
Priority claimed from JP62125245A external-priority patent/JP2550578B2/ja
Priority claimed from JP1987077177U external-priority patent/JPS63185315U/ja
Priority claimed from JP62155128A external-priority patent/JPH0711898B2/ja
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of DE3879758D1 publication Critical patent/DE3879758D1/de
Application granted granted Critical
Publication of DE3879758T2 publication Critical patent/DE3879758T2/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
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • 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)
  • Picture Signal Circuits (AREA)
DE88304624T 1987-05-22 1988-05-20 Schaltung zum Reduzieren des Geräusches eines Videosignals. Expired - Lifetime DE3879758T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62125245A JP2550578B2 (ja) 1987-05-22 1987-05-22 エンファシス回路
JP1987077177U JPS63185315U (de) 1987-05-22 1987-05-22
JP62155128A JPH0711898B2 (ja) 1987-06-22 1987-06-22 エンファシス回路

Publications (2)

Publication Number Publication Date
DE3879758D1 true DE3879758D1 (de) 1993-05-06
DE3879758T2 DE3879758T2 (de) 1993-10-07

Family

ID=27302359

Family Applications (2)

Application Number Title Priority Date Filing Date
DE198888304624T Pending DE292324T1 (de) 1987-05-22 1988-05-20 Schaltung zum reduzieren des geraeusches eines videosignals.
DE88304624T Expired - Lifetime DE3879758T2 (de) 1987-05-22 1988-05-20 Schaltung zum Reduzieren des Geräusches eines Videosignals.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE198888304624T Pending DE292324T1 (de) 1987-05-22 1988-05-20 Schaltung zum reduzieren des geraeusches eines videosignals.

Country Status (4)

Country Link
US (1) US4860105A (de)
EP (1) EP0292324B1 (de)
KR (1) KR920001004B1 (de)
DE (2) DE292324T1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63233677A (ja) * 1987-03-20 1988-09-29 Sony Corp ノイズ低減回路
US5097336A (en) * 1987-09-22 1992-03-17 Canon Kabushiki Kaisha Signal processing apparatus
US5119084A (en) * 1988-12-06 1992-06-02 Casio Computer Co., Ltd. Liquid crystal display apparatus
JP2701388B2 (ja) * 1988-12-09 1998-01-21 ソニー株式会社 Ｆｍ復調回路
JPH03112275A (ja) * 1989-09-27 1991-05-13 Sony Corp 雑音低減回路
US5105275A (en) * 1990-01-31 1992-04-14 Sanyo Electric Co., Ltd. Noise reduction circuit for video signal recording/reproduction device
JP3074697B2 (ja) * 1990-04-24 2000-08-07 ソニー株式会社 映像信号のｆｍ記録装置
JPH0468923A (ja) * 1990-07-09 1992-03-04 Sony Corp ノンリニアプリエンファシス・デエンファシスシステム
JP2783696B2 (ja) * 1991-05-31 1998-08-06 シャープ株式会社 画質補正装置
US5325203A (en) * 1992-04-16 1994-06-28 Sony Corporation Adaptively controlled noise reduction device for producing a continuous output
JP3494126B2 (ja) * 2000-05-26 2004-02-03 セイコーエプソン株式会社 画像処理回路および画像データ処理方法、電気光学装置、ならびに電子機器
US7952647B2 (en) * 2006-12-27 2011-05-31 Intel Corporation Method and apparatus of content adaptive detailing filtering for digital pictures

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117712A (en) * 1979-02-28 1980-09-10 Matsushita Electric Ind Co Ltd Noise reduction circuit of video signal recording and reproducing device
JPS57123511A (en) * 1981-01-20 1982-08-02 Matsushita Electric Ind Co Ltd Recording and reproducing device for video signal
JPS57154986A (en) * 1981-03-19 1982-09-24 Matsushita Electric Ind Co Ltd Magnetic recorder and reproducer
JPS5897114A (ja) * 1981-12-07 1983-06-09 Hitachi Ltd ノンリニアエンフアシス回路
JPS59144288A (ja) * 1983-02-07 1984-08-18 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
US4730165A (en) * 1984-09-12 1988-03-08 Matsushita Electric Industrial Co., Ltd. Non-linear signal processing apparatus
JPS61159876A (ja) * 1984-12-29 1986-07-19 Victor Co Of Japan Ltd 雑音除去回路
JPS61208670A (ja) * 1985-03-13 1986-09-17 Victor Co Of Japan Ltd ノイズ低減回路
JPS6251883A (ja) * 1985-08-30 1987-03-06 Victor Co Of Japan Ltd ノイズ抑圧回路
US4750037A (en) * 1985-10-07 1988-06-07 Victor Company Of Japan, Ltd. Noise reduction system for video signal
JPS62190973A (ja) * 1986-02-18 1987-08-21 Victor Co Of Japan Ltd ノイズリダクシヨン回路
JPH0685575B2 (ja) * 1986-07-03 1994-10-26 日本ビクター株式会社 エンフアシス回路
JPH0795843B2 (ja) * 1986-07-21 1995-10-11 日本ビクター株式会社 映像信号の記録／再生装置
US4779133A (en) * 1986-10-23 1988-10-18 Nippon Television Network Corporation Low-noise television system

Also Published As

Publication number Publication date
US4860105A (en) 1989-08-22
DE292324T1 (de) 1989-03-09
KR920001004B1 (ko) 1992-02-01
EP0292324A2 (de) 1988-11-23
EP0292324A3 (en) 1989-12-06
KR880014822A (ko) 1988-12-24
DE3879758T2 (de) 1993-10-07
EP0292324B1 (de) 1993-03-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition