NL194877B - Automatische contrastbesturingsinrichting van een videocamera. - Google Patents

Automatische contrastbesturingsinrichting van een videocamera.

Info

Publication number
NL194877B
NL194877B NL8901784A NL8901784A NL194877B NL 194877 B NL194877 B NL 194877B NL 8901784 A NL8901784 A NL 8901784A NL 8901784 A NL8901784 A NL 8901784A NL 194877 B NL194877 B NL 194877B
Authority
NL
Netherlands
Prior art keywords
control device
video camera
contrast control
automatic contrast
automatic
Prior art date
Application number
NL8901784A
Other languages
English (en)
Other versions
NL8901784A (nl
NL194877C (nl
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of NL8901784A publication Critical patent/NL8901784A/nl
Publication of NL194877B publication Critical patent/NL194877B/nl
Application granted granted Critical
Publication of NL194877C publication Critical patent/NL194877C/nl

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
NL8901784A 1988-08-06 1989-07-11 Automatische contrastbesturingsinrichting van een videocamera. NL194877C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR880010095 1988-08-06
KR1019880010095A KR910006376B1 (ko) 1988-08-06 1988-08-06 비데오 카메라의 자동 콘트라스트 조절회로

Publications (3)

Publication Number Publication Date
NL8901784A NL8901784A (nl) 1990-03-01
NL194877B true NL194877B (nl) 2003-01-06
NL194877C NL194877C (nl) 2003-05-06

Family

ID=19276796

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8901784A NL194877C (nl) 1988-08-06 1989-07-11 Automatische contrastbesturingsinrichting van een videocamera.

Country Status (5)

Country Link
US (1) US5181117A (nl)
JP (1) JPH0817457B2 (nl)
KR (1) KR910006376B1 (nl)
DE (1) DE3923204A1 (nl)
NL (1) NL194877C (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950003637B1 (ko) * 1992-12-03 1995-04-17 삼성전자 주식회사 주파수 변조장치
JPH06250619A (ja) * 1993-02-26 1994-09-09 Hitachi Ltd ポインタ機能付きマルチスキャン式大画面ディスプレイシステム
KR100330172B1 (ko) * 1999-07-29 2002-03-28 윤종용 Ｌｃｄ프로젝션시스템의 명암대비개선장치
EP1877609A4 (en) * 2005-05-05 2014-09-10 Astenjohnson Inc VOLUME-RAISING FORMING TISSUE

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914545A (en) * 1972-08-02 1975-10-21 Zenith Radio Corp Automatic contrast control utilizing three control signals
US3970777A (en) * 1975-06-09 1976-07-20 Minnesota Mining And Manufacturing Company Apparatus for adjusting video pedestal and peak white level
US3976836A (en) * 1975-06-09 1976-08-24 Gte Sylvania Incorporated Automatic black level setting circuit
JPS5553362U (nl) * 1978-10-03 1980-04-10
JPS5675780A (en) * 1979-11-26 1981-06-23 Sony Corp Video signal processing circuit
DE3326272C1 (de) * 1983-07-21 1985-04-18 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth Verfahren und Schaltungsanordnung zur Verbesserung der Qualitaet eines Fernsehbildes
JPS6043972A (ja) * 1983-08-22 1985-03-08 Sony Corp 映像の黒レベル再生回路
DE3446821A1 (de) * 1984-12-21 1986-06-26 Robert Bosch Gmbh, 7000 Stuttgart Schaltung zur weisskompression eines viedeosignals
JPH0445337Y2 (nl) * 1986-10-23 1992-10-26
JPS645569U (nl) * 1987-06-26 1989-01-12

Also Published As

Publication number Publication date
US5181117A (en) 1993-01-19
NL8901784A (nl) 1990-03-01
NL194877C (nl) 2003-05-06
KR910006376B1 (ko) 1991-08-21
DE3923204A1 (de) 1990-03-08
KR900004177A (ko) 1990-03-27
DE3923204C2 (nl) 1992-05-14
JPH02100474A (ja) 1990-04-12
JPH0817457B2 (ja) 1996-02-21

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
NP1 Patent granted (not automatically)
V1 Lapsed because of non-payment of the annual fee

Effective date: 20040201