PL126553B1 - Automatic brightness control system for a video-signal processing apparatus - Google Patents

Automatic brightness control system for a video-signal processing apparatus Download PDF

Info

Publication number
PL126553B1
PL126553B1 PL1980223022A PL22302280A PL126553B1 PL 126553 B1 PL126553 B1 PL 126553B1 PL 1980223022 A PL1980223022 A PL 1980223022A PL 22302280 A PL22302280 A PL 22302280A PL 126553 B1 PL126553 B1 PL 126553B1
Authority
PL
Poland
Prior art keywords
transistor
circuit
voltage
brightness
level
Prior art date
Application number
PL1980223022A
Other languages
English (en)
Polish (pl)
Other versions
PL223022A1 (enExample
Inventor
Leopold A Harwood
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 PL223022A1 publication Critical patent/PL223022A1/xx
Publication of PL126553B1 publication Critical patent/PL126553B1/pl

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
    • H04N5/59—Control of contrast or brightness in dependence upon beam current of cathode ray tube
    • 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
    • H04N9/645—Beam current control means

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Picture Signal Circuits (AREA)
PL1980223022A 1979-03-26 1980-03-26 Automatic brightness control system for a video-signal processing apparatus PL126553B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/023,964 US4209808A (en) 1979-03-26 1979-03-26 Stabilized automatic brightness control network in a video signal processing system including an automatic kinescope beam current limiter

Publications (2)

Publication Number Publication Date
PL223022A1 PL223022A1 (enExample) 1981-01-30
PL126553B1 true PL126553B1 (en) 1983-08-31

Family

ID=21818149

Family Applications (1)

Application Number Title Priority Date Filing Date
PL1980223022A PL126553B1 (en) 1979-03-26 1980-03-26 Automatic brightness control system for a video-signal processing apparatus

Country Status (13)

Country Link
US (1) US4209808A (enExample)
JP (1) JPS55132175A (enExample)
AT (1) AT385162B (enExample)
CA (1) CA1136756A (enExample)
DE (1) DE3011726C2 (enExample)
ES (1) ES8103900A1 (enExample)
FI (1) FI68139C (enExample)
FR (1) FR2452835A1 (enExample)
GB (1) GB2046055B (enExample)
HK (1) HK24587A (enExample)
IT (1) IT1131408B (enExample)
PL (1) PL126553B1 (enExample)
PT (1) PT70924A (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331982A (en) * 1980-09-25 1982-05-25 Rca Corporation Sample and hold circuit particularly for small signals
US4331981A (en) * 1980-09-25 1982-05-25 Rca Corporation Linear high gain sampling amplifier
US4376288A (en) * 1981-08-27 1983-03-08 Rca Corporation Signal gain control with DC compensation
US4633320A (en) * 1984-03-08 1986-12-30 Rca Corporation Video signal processor with automatic kinescope beam current limiter
US4689668A (en) * 1986-07-14 1987-08-25 Rca Corporation Auxiliary kinescope beam current limiter with plural cascaded low pass filter and peak detector stages
JPS63179685A (ja) * 1987-01-21 1988-07-23 Toshiba Corp 順次走査変換回路
KR910007544B1 (ko) * 1988-04-02 1991-09-27 삼성전자 주식회사 자동 휘도 제한 회로
FR2640839B1 (fr) * 1988-12-20 1991-03-15 Portenseigne Radiotechnique Appareil de reproduction d'image video muni d'un reglage de contraste, et procede de reglage du contraste d'un tel appareil de reproduction
KR930009100B1 (ko) * 1991-01-17 1993-09-22 삼성전자 주식회사 광대역 음극선관 구동회로
CA2145901C (en) * 1994-04-28 2000-02-22 Anton Werner Keller Kinescope driver apparatus with gamma correction
US7277135B1 (en) * 2004-07-23 2007-10-02 National Semiconductor Corporation Video display signal brightness control circuit
WO2009042663A1 (en) 2007-09-24 2009-04-02 Royal Appliance Mfg. Co. D/B/A Tti Floorcare North America Extraction cleaning apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5537146B2 (enExample) * 1972-08-28 1980-09-26
JPS50140216A (enExample) * 1974-04-26 1975-11-10
US4121252A (en) * 1975-07-09 1978-10-17 Hitachi, Ltd. Automatic brightness limiter circuit
US4096518A (en) * 1977-05-05 1978-06-20 Rca Corporation Average beam current limiter
US4197557A (en) * 1977-05-05 1980-04-08 Rca Corporation Brightness control circuit employing a closed control loop
US4126884A (en) * 1977-05-05 1978-11-21 Rca Corporation Kinescope beam current limiter employing automatic sequential control of image contrast and brightness to limit beam current
US4137552A (en) * 1977-05-05 1979-01-30 Rca Corporation Automatic beam current limiter with independently determined threshold level and dynamic control range
US4167025A (en) * 1978-02-09 1979-09-04 Rca Corporation Automatic peak beam current limiter
US4143398A (en) * 1978-03-22 1979-03-06 Rca Corporation Automatic brightness control circuit employing a closed control loop stabilized against disruption by large amplitude video signals

Also Published As

Publication number Publication date
FR2452835B1 (enExample) 1984-03-09
FI68139C (fi) 1985-07-10
DE3011726A1 (de) 1980-10-02
GB2046055B (en) 1983-06-15
PL223022A1 (enExample) 1981-01-30
ES489894A0 (es) 1981-03-16
ATA160780A (de) 1987-07-15
AT385162B (de) 1988-02-25
CA1136756A (en) 1982-11-30
FI800845A7 (fi) 1980-09-27
FR2452835A1 (fr) 1980-10-24
FI68139B (fi) 1985-03-29
GB2046055A (en) 1980-11-05
JPS6351433B2 (enExample) 1988-10-13
DE3011726C2 (de) 1983-12-29
HK24587A (en) 1987-03-27
US4209808A (en) 1980-06-24
IT1131408B (it) 1986-06-25
IT8020654A0 (it) 1980-03-14
PT70924A (en) 1980-04-01
ES8103900A1 (es) 1981-03-16
JPS55132175A (en) 1980-10-14

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