IT1003098B - Disposizione circuitale per attua re il sistema per regolare indipen dentemente la definizione del con trasto e della luminosita di un te levisore specie in videotelefoni di utente - Google Patents

Disposizione circuitale per attua re il sistema per regolare indipen dentemente la definizione del con trasto e della luminosita di un te levisore specie in videotelefoni di utente

Info

Publication number
IT1003098B
IT1003098B IT7326173A IT2617373A IT1003098B IT 1003098 B IT1003098 B IT 1003098B IT 7326173 A IT7326173 A IT 7326173A IT 2617373 A IT2617373 A IT 2617373A IT 1003098 B IT1003098 B IT 1003098B
Authority
IT
Italy
Prior art keywords
leviewer
transtation
con
brightness
specially
Prior art date
Application number
IT7326173A
Other languages
English (en)
Original Assignee
Siemens Ag
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 DE19722232994 external-priority patent/DE2232994C3/de
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT1003098B publication Critical patent/IT1003098B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
IT7326173A 1972-07-05 1973-07-04 Disposizione circuitale per attua re il sistema per regolare indipen dentemente la definizione del con trasto e della luminosita di un te levisore specie in videotelefoni di utente IT1003098B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722232994 DE2232994C3 (de) 1972-07-05 Verfahren und Schaltungsanordnung zum unabhängigen Regeln der Kontrastund der Helligkeitseinstellung eines Bildempfängers, insbesondere in BiIdfernsprech-TeilnehmersteHen

Publications (1)

Publication Number Publication Date
IT1003098B true IT1003098B (it) 1976-06-10

Family

ID=5849767

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7326173A IT1003098B (it) 1972-07-05 1973-07-04 Disposizione circuitale per attua re il sistema per regolare indipen dentemente la definizione del con trasto e della luminosita di un te levisore specie in videotelefoni di utente

Country Status (10)

Country Link
US (1) US3881054A (it)
JP (1) JPS4946332A (it)
AT (1) AT331318B (it)
BE (1) BE801952A (it)
CH (1) CH548719A (it)
FR (1) FR2191381A1 (it)
GB (1) GB1444803A (it)
IT (1) IT1003098B (it)
LU (1) LU67927A1 (it)
NL (1) NL7307149A (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0628419B2 (ja) * 1984-06-21 1994-04-13 ソニー株式会社 画像調整装置
DE58908000D1 (de) * 1988-07-28 1994-08-11 Contraves Ag Automatische Helligkeits- und Kontrast-Steuerung einer Video-Kamera für industrielle/militärische Zwecke.
FR2651080A1 (fr) * 1989-08-18 1991-02-22 Hewlett Packard France Sa Dispositif de commande de gain pour moniteur video
US5065443A (en) * 1989-12-04 1991-11-12 Allen-Bradley Company, Inc. Image processor with illumination variation compensation
FI103628B1 (fi) * 1997-09-02 1999-07-30 Nokia Mobile Phones Ltd Videodatan lähettäminen
KR100449744B1 (ko) * 2002-10-21 2004-09-22 삼성전자주식회사 영상 처리 장치에서의 화면 밝기 제어 방법 및 장치
US20140176021A1 (en) * 2010-11-23 2014-06-26 Kin Ming Fung Method and Apparatus for Controlling Light Intensity of Lamp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217100A (en) * 1962-01-03 1965-11-09 Rca Corp Contrast control system
US3569620A (en) * 1969-03-21 1971-03-09 Rca Corp Automatic video signal gain controlling apparatus
US3604844A (en) * 1969-05-28 1971-09-14 Central Dynamics Video signal processing amplifier with automatic gain control
GB1391452A (en) * 1971-04-21 1975-04-23 Image Analysing Computers Ltd Method and circuit arrangement for amplitude correction of a video signal obtained by line scanning
US3760099A (en) * 1971-11-01 1973-09-18 Tektronix Inc Video amplifier for a color television apparatus

Also Published As

Publication number Publication date
US3881054A (en) 1975-04-29
BE801952A (fr) 1974-01-07
ATA432773A (de) 1975-11-15
FR2191381A1 (it) 1974-02-01
NL7307149A (it) 1974-01-08
DE2232994A1 (de) 1974-01-17
GB1444803A (en) 1976-08-04
LU67927A1 (it) 1973-09-05
CH548719A (de) 1974-04-30
JPS4946332A (it) 1974-05-02
DE2232994B2 (de) 1976-07-22
AT331318B (de) 1976-08-10

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