FR2577735B1 - Circuit d'accentuation de signaux video - Google Patents

Circuit d'accentuation de signaux video

Info

Publication number
FR2577735B1
FR2577735B1 FR868602169A FR8602169A FR2577735B1 FR 2577735 B1 FR2577735 B1 FR 2577735B1 FR 868602169 A FR868602169 A FR 868602169A FR 8602169 A FR8602169 A FR 8602169A FR 2577735 B1 FR2577735 B1 FR 2577735B1
Authority
FR
France
Prior art keywords
video signal
signal enhancement
enhancement circuit
circuit
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
FR868602169A
Other languages
English (en)
Other versions
FR2577735A1 (fr
Inventor
Robert Andrew Wargo
Leopold Albert Harwood
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of FR2577735A1 publication Critical patent/FR2577735A1/fr
Application granted granted Critical
Publication of FR2577735B1 publication Critical patent/FR2577735B1/fr
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
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • 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
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
FR868602169A 1985-02-19 1986-02-18 Circuit d'accentuation de signaux video Expired - Fee Related FR2577735B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/702,618 US4623924A (en) 1985-02-19 1985-02-19 Video signal auto peaking circuitry

Publications (2)

Publication Number Publication Date
FR2577735A1 FR2577735A1 (fr) 1986-08-22
FR2577735B1 true FR2577735B1 (fr) 1990-08-31

Family

ID=24821962

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868602169A Expired - Fee Related FR2577735B1 (fr) 1985-02-19 1986-02-18 Circuit d'accentuation de signaux video

Country Status (7)

Country Link
US (1) US4623924A (fr)
JP (1) JPH0831974B2 (fr)
KR (1) KR950011820B1 (fr)
DE (1) DE3605283C2 (fr)
FR (1) FR2577735B1 (fr)
GB (1) GB2171273B (fr)
HK (1) HK90593A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757373A (en) * 1985-11-14 1988-07-12 U.S. Philips Corporation Amplifier circuit operative with an adaptive signal compression
US4916526A (en) * 1986-01-31 1990-04-10 Yves C. Faroudja Bandwidth control for chrominance and luminance paths in quadrature modulated color television system
US5045926A (en) * 1989-03-07 1991-09-03 Sony Corporation Television image display apparatus
US5146319A (en) * 1989-07-13 1992-09-08 Zenith Electronics Corporation Digital luminance signal transient improver and peaker
JPH0436373U (fr) * 1990-07-25 1992-03-26
US5121209A (en) * 1990-10-01 1992-06-09 Rca Licensing Corporation Sharpness control for a television image
US5187567A (en) * 1991-10-03 1993-02-16 Zenith Electronics Corporation Automatic video peaking system
DE4203717A1 (de) * 1992-02-08 1993-08-12 Philips Patentverwaltung Schaltung zur adaptiven weisskompression von videosignalen
DE4319834C2 (de) * 1993-06-17 1996-11-28 Loewe Opta Gmbh Fernsehempfangsgerät mit digitaler Signalverarbeitung des Videosignals
JP3477871B2 (ja) * 1994-12-28 2003-12-10 ソニー株式会社 映像信号処理装置
KR100206319B1 (ko) * 1995-12-13 1999-07-01 윤종용 비디오 신호의 로컬 콘트라스트 개선을 위한 방법및장치
CN101809988B (zh) 2007-10-01 2013-01-23 英属开曼群岛商泰鼎微***股份有限公司 像素处理

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081836A (en) * 1976-11-30 1978-03-28 The Magnavox Company Luminance signal processor for providing signal enhancement
US4110790A (en) * 1977-01-19 1978-08-29 Gte Sylvania Incorporated Video processing system providing gain control, aperture control, and black level control
US4231065A (en) * 1979-01-11 1980-10-28 Honeywell Inc. Local area contrast enhancement device
US4351003A (en) * 1981-04-20 1982-09-21 Rca Corporation Automatic video signal peaking control
US4399460A (en) * 1981-10-09 1983-08-16 Rca Corporation Video signal peaking control system with provision for automatic and manual control
US4538178A (en) * 1983-06-24 1985-08-27 Rca Corporation Digital signal peaking apparatus with controllable peaking level
JPS6030277A (ja) * 1983-07-29 1985-02-15 Hitachi Ltd ビデオカメラの信号処理回路

Also Published As

Publication number Publication date
DE3605283A1 (de) 1986-08-21
KR950011820B1 (ko) 1995-10-10
GB2171273B (en) 1988-07-20
GB8604012D0 (en) 1986-03-26
GB2171273A (en) 1986-08-20
DE3605283C2 (de) 1995-04-20
JPS61201576A (ja) 1986-09-06
FR2577735A1 (fr) 1986-08-22
US4623924A (en) 1986-11-18
HK90593A (en) 1993-09-10
JPH0831974B2 (ja) 1996-03-27
KR860006903A (ko) 1986-09-15

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse