KR900004026B1 - 비디오 신호 엠퍼시스 회로 - Google Patents

비디오 신호 엠퍼시스 회로 Download PDF

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Publication number
KR900004026B1
KR900004026B1 KR1019850006934A KR850006934A KR900004026B1 KR 900004026 B1 KR900004026 B1 KR 900004026B1 KR 1019850006934 A KR1019850006934 A KR 1019850006934A KR 850006934 A KR850006934 A KR 850006934A KR 900004026 B1 KR900004026 B1 KR 900004026B1
Authority
KR
South Korea
Prior art keywords
circuit
emphasis
signal
output
video signal
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
Application number
KR1019850006934A
Other languages
English (en)
Korean (ko)
Other versions
KR860003704A (ko
Inventor
구니아끼 미우라
야스후미 윤데
가즈노리 고따니
이사오 후꾸시마
겐지 가노
Original Assignee
가부시끼가이샤 히다찌세이사꾸쇼
미다 가쓰시게
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 가부시끼가이샤 히다찌세이사꾸쇼, 미다 가쓰시게 filed Critical 가부시끼가이샤 히다찌세이사꾸쇼
Publication of KR860003704A publication Critical patent/KR860003704A/ko
Application granted granted Critical
Publication of KR900004026B1 publication Critical patent/KR900004026B1/ko
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • 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
    • H04N5/142—Edging; Contouring
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Signal Processing For Recording (AREA)
  • Processing Of Color Television Signals (AREA)
KR1019850006934A 1984-10-03 1985-09-23 비디오 신호 엠퍼시스 회로 Expired KR900004026B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP59-206210 1984-10-03
JP59206210A JPS6184972A (ja) 1984-10-03 1984-10-03 映像信号の垂直方向エンフアシス回路
JP84-206210 1984-10-03

Publications (2)

Publication Number Publication Date
KR860003704A KR860003704A (ko) 1986-05-28
KR900004026B1 true KR900004026B1 (ko) 1990-06-09

Family

ID=16519590

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850006934A Expired KR900004026B1 (ko) 1984-10-03 1985-09-23 비디오 신호 엠퍼시스 회로

Country Status (7)

Country Link
US (1) US4647960A (enExample)
EP (1) EP0176888A1 (enExample)
JP (1) JPS6184972A (enExample)
KR (1) KR900004026B1 (enExample)
CN (1) CN85107350A (enExample)
BR (1) BR8504840A (enExample)
CA (1) CA1228670A (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61121574A (ja) * 1984-11-19 1986-06-09 Hitachi Ltd ビデオ信号処理回路
JPS6262681A (ja) * 1985-09-13 1987-03-19 Hitachi Ltd 映像信号の垂直方向エンフアシス回路
JPS6276871A (ja) * 1985-09-30 1987-04-08 Toshiba Corp 画質補正回路
US4750037A (en) * 1985-10-07 1988-06-07 Victor Company Of Japan, Ltd. Noise reduction system for video signal
KR910001472B1 (ko) * 1985-10-09 1991-03-07 마쯔시다덴기산교 가부시기가이샤 컬러텔레비젼 신호의 기록재생장치
JPS62239670A (ja) * 1986-04-11 1987-10-20 Ikegami Tsushinki Co Ltd 輪郭強調装置
US5105275A (en) * 1990-01-31 1992-04-14 Sanyo Electric Co., Ltd. Noise reduction circuit for video signal recording/reproduction device
JP3161178B2 (ja) * 1993-09-16 2001-04-25 松下電器産業株式会社 雑音低減装置
JP2004159067A (ja) * 2002-11-06 2004-06-03 Sanyo Electric Co Ltd 垂直シャープネス装置及びそれを備えたｔｖ受像機
JP4518028B2 (ja) * 2006-02-13 2010-08-04 Ｓｍｃ株式会社 位置決め制御システム及びフィルタ
MY158945A (en) * 2009-09-30 2016-11-30 Sugatsune Kogyo Rotary damper

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836707A (en) * 1971-12-27 1974-09-17 Hitachi Ltd Video signal processing device for extracting the chrominance and luminance signals from a composite video signal in a color television receiver
GB1428963A (en) * 1972-04-04 1976-03-24 Dolby Laboratories Inc Circuits for modifying the dynamic range of signals
GB1469101A (en) * 1973-03-23 1977-03-30 Dolby Laboratories Inc Noise reduction systems
JPS5915557B2 (ja) * 1976-08-04 1984-04-10 日本放送協会 カラ−テレビジヨン信号伝送方式
NL8102181A (nl) * 1981-05-04 1982-12-01 Philips Nv Ruisonderdrukkingsschakeling voor een videosignaal.
US4403246A (en) * 1981-11-13 1983-09-06 Rca Corporation Vertical detail enhancement on/off switch
JPS5914471U (ja) * 1982-07-20 1984-01-28 日本ビクター株式会社 カラ−映像信号の画質改善回路
JPS59144288A (ja) * 1983-02-07 1984-08-18 Victor Co Of Japan Ltd 映像信号記録再生装置
CA1202413A (en) * 1983-04-07 1986-03-25 Shintaro Nakagaki Noise reduction circuit for a video signal
JPS60121885A (ja) * 1983-12-05 1985-06-29 Victor Co Of Japan Ltd 映像信号の雑音低減回路

Also Published As

Publication number Publication date
EP0176888A1 (en) 1986-04-09
CA1228670A (en) 1987-10-27
US4647960A (en) 1987-03-03
JPS6184972A (ja) 1986-04-30
JPH0464235B2 (enExample) 1992-10-14
KR860003704A (ko) 1986-05-28
CN85107350A (zh) 1986-04-10
BR8504840A (pt) 1986-07-22

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