FI68139C - Stabiliserad automatisk ljusstyrkeregleringskrets i ett videosignalbehandlingssystem omfattande en automatisk begraensare foer straolstroemmen i ett bildroer - Google Patents

Stabiliserad automatisk ljusstyrkeregleringskrets i ett videosignalbehandlingssystem omfattande en automatisk begraensare foer straolstroemmen i ett bildroer Download PDF

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Publication number
FI68139C
FI68139C FI800845A FI800845A FI68139C FI 68139 C FI68139 C FI 68139C FI 800845 A FI800845 A FI 800845A FI 800845 A FI800845 A FI 800845A FI 68139 C FI68139 C FI 68139C
Authority
FI
Finland
Prior art keywords
transistor
output
level
signal
amplifier
Prior art date
Application number
FI800845A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI800845A (fi
FI68139B (fi
Inventor
Leopold Albert 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 FI800845A publication Critical patent/FI800845A/fi
Publication of FI68139B publication Critical patent/FI68139B/fi
Application granted granted Critical
Publication of FI68139C publication Critical patent/FI68139C/fi

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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)
FI800845A 1979-03-26 1980-03-19 Stabiliserad automatisk ljusstyrkeregleringskrets i ett videosignalbehandlingssystem omfattande en automatisk begraensare foer straolstroemmen i ett bildroer FI68139C (fi)

Applications Claiming Priority (2)

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
US2396479 1979-03-26

Publications (3)

Publication Number Publication Date
FI800845A FI800845A (fi) 1980-09-27
FI68139B FI68139B (fi) 1985-03-29
FI68139C true FI68139C (fi) 1985-07-10

Family

ID=21818149

Family Applications (1)

Application Number Title Priority Date Filing Date
FI800845A FI68139C (fi) 1979-03-26 1980-03-19 Stabiliserad automatisk ljusstyrkeregleringskrets i ett videosignalbehandlingssystem omfattande en automatisk begraensare foer straolstroemmen i ett bildroer

Country Status (13)

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

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
CN101868172A (zh) 2007-09-24 2010-10-20 创科地板护理技术有限公司 抽取清洁装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5537146B2 (xx) * 1972-08-28 1980-09-26
JPS50140216A (xx) * 1974-04-26 1975-11-10
BR7604441A (pt) * 1975-07-09 1977-07-26 Hitachi Ltd Receptor de televisao e circuito limitador de corrente de feixe para receptor de televisao
US4197557A (en) * 1977-05-05 1980-04-08 Rca Corporation Brightness control circuit employing a closed control loop
US4137552A (en) * 1977-05-05 1979-01-30 Rca Corporation Automatic beam current limiter with independently determined threshold level and dynamic control range
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
US4096518A (en) * 1977-05-05 1978-06-20 Rca Corporation Average beam current limiter
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
HK24587A (en) 1987-03-27
IT8020654A0 (it) 1980-03-14
IT1131408B (it) 1986-06-25
PT70924A (en) 1980-04-01
JPS55132175A (en) 1980-10-14
GB2046055B (en) 1983-06-15
CA1136756A (en) 1982-11-30
ATA160780A (de) 1987-07-15
PL126553B1 (en) 1983-08-31
FI800845A (fi) 1980-09-27
ES489894A0 (es) 1981-03-16
DE3011726C2 (de) 1983-12-29
FR2452835B1 (xx) 1984-03-09
FI68139B (fi) 1985-03-29
ES8103900A1 (es) 1981-03-16
GB2046055A (en) 1980-11-05
PL223022A1 (xx) 1981-01-30
US4209808A (en) 1980-06-24
AT385162B (de) 1988-02-25
DE3011726A1 (de) 1980-10-02
FR2452835A1 (fr) 1980-10-24
JPS6351433B2 (xx) 1988-10-13

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MM Patent lapsed

Owner name: RCA CORPORATION