FI811921L - System foer automatisk foerstaerkningsreglering foer television - Google Patents

System foer automatisk foerstaerkningsreglering foer television

Info

Publication number
FI811921L
FI811921L FI811921A FI811921A FI811921L FI 811921 L FI811921 L FI 811921L FI 811921 A FI811921 A FI 811921A FI 811921 A FI811921 A FI 811921A FI 811921 L FI811921 L FI 811921L
Authority
FI
Finland
Prior art keywords
foer
foerstaerkningsreglering
television
automatisk
system foer
Prior art date
Application number
FI811921A
Other languages
English (en)
Other versions
FI71448B (fi
FI71448C (fi
Inventor
Jack Rudolph Harford
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 FI811921L publication Critical patent/FI811921L/fi
Publication of FI71448B publication Critical patent/FI71448B/fi
Application granted granted Critical
Publication of FI71448C publication Critical patent/FI71448C/fi

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
    • H04N5/52—Automatic gain control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3063—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver using at least one transistor as controlling device, the transistor being used as a variable impedance device

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Television Receiver Circuits (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
FI811921A 1980-06-26 1981-06-18 Automatisk foerstaerkningsregleringskrets foer en television FI71448C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16314680 1980-06-26
US06/163,146 US4329713A (en) 1980-06-26 1980-06-26 Television automatic gain control system

Publications (3)

Publication Number Publication Date
FI811921L true FI811921L (fi) 1981-12-27
FI71448B FI71448B (fi) 1986-09-09
FI71448C FI71448C (fi) 1986-12-19

Family

ID=22588685

Family Applications (1)

Application Number Title Priority Date Filing Date
FI811921A FI71448C (fi) 1980-06-26 1981-06-18 Automatisk foerstaerkningsregleringskrets foer en television

Country Status (14)

Country Link
US (1) US4329713A (fi)
JP (1) JPS5744309A (fi)
KR (1) KR840001466B1 (fi)
AT (1) AT394289B (fi)
AU (1) AU543323B2 (fi)
CA (1) CA1164997A (fi)
DE (1) DE3125257C2 (fi)
ES (1) ES503215A0 (fi)
FI (1) FI71448C (fi)
FR (1) FR2485850B1 (fi)
GB (2) GB2079077B (fi)
IT (1) IT1136890B (fi)
PL (1) PL131735B1 (fi)
SE (1) SE453346B (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03195462A (ja) * 1989-12-22 1991-08-27 Adogaa Kogyo Kk 変色可能な飲食品及びそのための添加剤
US5575003A (en) * 1994-12-12 1996-11-12 Zenith Electronics Corporation Current mode AGC system for television tuner
US7443455B2 (en) * 2003-12-30 2008-10-28 Texas Instruments Incorporated Automatic gain control based on multiple input references in a video decoder
JP2008141716A (ja) * 2006-11-10 2008-06-19 Matsushita Electric Ind Co Ltd 電子チューナとこれを用いた携帯電話装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1616780B1 (de) * 1961-03-02 1972-11-09 Aga Ab Schaltung zur automatischen Verstaerkungsregelung einer Verstaerkerstufe
US3673498A (en) * 1970-05-19 1972-06-27 Rca Corp Gain controlled cascode-connected transistor amplifier
US3641450A (en) * 1970-12-15 1972-02-08 Motorola Inc Gain controlled differential amplifier circuit
US4115812A (en) * 1973-11-26 1978-09-19 Hitachi, Ltd. Automatic gain control circuit
US4032973A (en) * 1976-05-07 1977-06-28 Gte Laboratories Incorporated Positive feedback high gain agc amplifier
US4292598A (en) * 1978-06-01 1981-09-29 Tokyo Shibaura Denki Kabushiki Kaisha Automatic gain control circuit

Also Published As

Publication number Publication date
CA1164997A (en) 1984-04-03
SE8103868L (sv) 1981-12-27
DE3125257A1 (de) 1982-06-24
PL231729A1 (fi) 1982-01-18
DE3125257C2 (de) 1985-05-30
GB2133945A (en) 1984-08-01
FR2485850A1 (fr) 1981-12-31
AT394289B (de) 1992-02-25
AU543323B2 (en) 1985-04-18
GB2079077B (en) 1984-10-03
AU7198581A (en) 1982-01-07
ES8300238A1 (es) 1982-10-01
ES503215A0 (es) 1982-10-01
IT8122496A0 (it) 1981-06-22
GB2079077A (en) 1982-01-13
IT1136890B (it) 1986-09-03
JPS643362B2 (fi) 1989-01-20
FI71448B (fi) 1986-09-09
KR840001466B1 (en) 1984-09-27
PL131735B1 (en) 1984-12-31
KR830007024A (ko) 1983-10-12
JPS5744309A (en) 1982-03-12
GB8333120D0 (en) 1984-01-18
GB2133945B (en) 1985-02-13
US4329713A (en) 1982-05-11
SE453346B (sv) 1988-01-25
ATA286681A (de) 1991-08-15
FR2485850B1 (fr) 1985-11-22
FI71448C (fi) 1986-12-19

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: RCA LICENSING CORPORATION