DE2911355C2 - Automatische Helligkeitsregelschaltung - Google Patents

Automatische Helligkeitsregelschaltung

Info

Publication number
DE2911355C2
DE2911355C2 DE2911355A DE2911355A DE2911355C2 DE 2911355 C2 DE2911355 C2 DE 2911355C2 DE 2911355 A DE2911355 A DE 2911355A DE 2911355 A DE2911355 A DE 2911355A DE 2911355 C2 DE2911355 C2 DE 2911355C2
Authority
DE
Germany
Prior art keywords
transistor
circuit
capacitor
signal
voltage
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
DE2911355A
Other languages
German (de)
English (en)
Other versions
DE2911355A1 (de
Inventor
Leopold Albert Bridgewater N.J. Harwood
Erwin Johann North Plainfield N.J. Wittmann
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 Licensing 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 DE2911355A1 publication Critical patent/DE2911355A1/de
Application granted granted Critical
Publication of DE2911355C2 publication Critical patent/DE2911355C2/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—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)
  • Processing Of Color Television Signals (AREA)
  • Television Receiver Circuits (AREA)
  • Picture Signal Circuits (AREA)
DE2911355A 1978-03-22 1979-03-22 Automatische Helligkeitsregelschaltung Expired DE2911355C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/888,932 US4143398A (en) 1978-03-22 1978-03-22 Automatic brightness control circuit employing a closed control loop stabilized against disruption by large amplitude video signals

Publications (2)

Publication Number Publication Date
DE2911355A1 DE2911355A1 (de) 1979-09-27
DE2911355C2 true DE2911355C2 (de) 1983-02-03

Family

ID=25394191

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2911355A Expired DE2911355C2 (de) 1978-03-22 1979-03-22 Automatische Helligkeitsregelschaltung

Country Status (10)

Country Link
US (1) US4143398A (en, 2012)
JP (1) JPS54130832A (en, 2012)
AT (1) AT379480B (en, 2012)
AU (1) AU529905B2 (en, 2012)
DE (1) DE2911355C2 (en, 2012)
FR (1) FR2420888A1 (en, 2012)
GB (1) GB2017451B (en, 2012)
HK (1) HK16687A (en, 2012)
IT (1) IT1166713B (en, 2012)
SE (1) SE430201B (en, 2012)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204221A (en) * 1979-01-31 1980-05-20 Rca Corporation Predictably biased kinescope driver arrangement in a video signal processing system
US4203131A (en) * 1979-01-31 1980-05-13 Rca Corporation Predictable automatic brightness control circuit in a video signal image reproducing system
US4237489A (en) * 1979-02-26 1980-12-02 Gte Products Corporation Video black level reference system
US4209808A (en) * 1979-03-26 1980-06-24 Rca Corporation Stabilized automatic brightness control network in a video signal processing system including an automatic kinescope beam current limiter
US4261015A (en) * 1979-07-09 1981-04-07 Burroughs Corporation Video clamp
US4295166A (en) * 1980-02-05 1981-10-13 Rca Corporation Failure compensated automatic kinescope beam current limiter
DE3016242C2 (de) * 1980-04-26 1986-12-18 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung mit nichtlinearer Übertragungskennlinie
CA1212461A (en) * 1982-10-29 1986-10-07 Rca Corporation Signal sampling circuit
US4580068A (en) * 1983-12-14 1986-04-01 Rca Corporation Keyed low impedance voltage source
JPH0628419B2 (ja) * 1984-06-21 1994-04-13 ソニー株式会社 画像調整装置
US4599651A (en) * 1984-11-28 1986-07-08 Rca Corporation Pulse amplifier in a brightness control system
US4599641A (en) * 1984-11-28 1986-07-08 Rca Corporation Brightness control apparatus for a video signal processing system
JPS61140279A (ja) * 1984-12-12 1986-06-27 Toshiba Corp 映像信号処理回路
DE3540752A1 (de) * 1985-11-16 1987-05-21 Blaupunkt Werke Gmbh Schaltungsanordnung mit steuerbarem verstaerkungsfaktor
JPH0822057B2 (ja) * 1992-04-21 1996-03-04 松下電器産業株式会社 テレビジョン信号処理方法および処理装置
US5390020A (en) * 1992-09-14 1995-02-14 Eastman Kodak Company Video amplifier stabilization for CRT printing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1027249A (en) * 1963-10-08 1966-04-27 Thorn Electronics Ltd Improvements in voltage clamps
US3597540A (en) * 1969-04-01 1971-08-03 Motorola Inc Automatic brightness control responsive to black level of video signal
US3588341A (en) * 1969-04-01 1971-06-28 Motorola Inc Automatic brightness control circuit for establishing the black level of signals in a television reciver
US3885093A (en) * 1972-04-03 1975-05-20 Ampex Fast acting direct current clamping circuit
US3851100A (en) * 1972-04-03 1974-11-26 Ampex Time-base error correction system
JPS5754983B2 (en, 2012) * 1974-04-19 1982-11-20
JPS5111297U (en, 2012) * 1974-07-12 1976-01-27
US4135200A (en) * 1977-05-12 1979-01-16 Rca Corporation Brightness control circuit with predictable brightness control range

Also Published As

Publication number Publication date
JPS54130832A (en) 1979-10-11
DE2911355A1 (de) 1979-09-27
US4143398A (en) 1979-03-06
AT379480B (de) 1986-01-10
SE430201B (sv) 1983-10-24
FR2420888B1 (en, 2012) 1985-03-29
GB2017451B (en) 1983-03-16
AU4518979A (en) 1979-09-27
IT1166713B (it) 1987-05-06
GB2017451A (en) 1979-10-03
AU529905B2 (en) 1983-06-23
ATA215079A (de) 1985-05-15
FR2420888A1 (fr) 1979-10-19
HK16687A (en) 1987-03-06
SE7902254L (sv) 1979-09-23
JPS6247393B2 (en, 2012) 1987-10-07
IT7921118A0 (it) 1979-03-19

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
8181 Inventor (new situation)

Free format text: HARWOOD, LEOPOLD ALBERT, BRIDGEWATER, N.J., US WITTMANN, ERWIN JOHANN, NORTH PLAINFIELD, N.J., US

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: RCA LICENSING CORP., PRINCETON, N.J., US