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NL284427A - - Google Patents

Info

Publication number
NL284427A
NL284427A NL284427DA NL284427A NL 284427 A NL284427 A NL 284427A NL 284427D A NL284427D A NL 284427DA NL 284427 A NL284427 A NL 284427A
Authority
NL
Netherlands
Prior art keywords
stage
circuit
tuned
base
transistor
Prior art date
Application number
Other languages
English (en)
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.)
Publication of NL284427A publication Critical patent/NL284427A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
    • H03D3/14—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of semiconductor devices having more than two electrodes
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Superheterodyne Receivers (AREA)
NL284427D 1961-10-18 NL284427A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US145833A US3172040A (en) 1961-10-18 1961-10-18 Am/fm receiver having automatic gain control

Publications (1)

Publication Number Publication Date
NL284427A true NL284427A (pt)

Family

ID=22514766

Family Applications (1)

Application Number Title Priority Date Filing Date
NL284427D NL284427A (pt) 1961-10-18

Country Status (7)

Country Link
US (1) US3172040A (pt)
BE (1) BE623643A (pt)
DE (1) DE1201424B (pt)
FR (1) FR1337030A (pt)
GB (1) GB989860A (pt)
NL (1) NL284427A (pt)
SE (1) SE308742B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287644A (en) * 1963-05-20 1966-11-22 Zenith Radio Corp Automatic gain controlled plural wave band radio receiver
US3289088A (en) * 1963-05-29 1966-11-29 Gerald M Berger Automatic non-linear gain control circuit
US3389338A (en) * 1964-11-24 1968-06-18 Bendix Corp Simplified band switching for fm-am receiver
US3457513A (en) * 1965-10-11 1969-07-22 Avco Corp Multi-purpose receiver with single detector for demodulating a plurality of types of signals
US3382440A (en) * 1966-10-10 1968-05-07 William T. Turner Apparatus for automatically converting a radio receiver to an fm or vhf receiver
US3528013A (en) * 1967-09-25 1970-09-08 Zenith Radio Corp Dual frequency intermediate-frequency coupling circuit
US3679979A (en) * 1969-06-26 1972-07-25 Sarkes Tarzian Am, fm, and fm stereo tuner having simplified am to fm switching means
GB1284007A (en) * 1969-09-17 1972-08-02 Matsushita Electric Ind Co Ltd Am-fm radio receiver
US4050022A (en) * 1975-10-20 1977-09-20 General Electric Company AM-FM receiver having improved mode conversion
US4150336A (en) * 1978-01-06 1979-04-17 Quadracast Systems, Inc. AM/FM Intermediate frequency gain stage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA448851A (en) * 1948-06-01 Wentz Huff John Combined amplitude modulation and frequency modulation receiver stage
BE514215A (pt) * 1951-09-17
US2709748A (en) * 1952-08-16 1955-05-31 Westinghouse Electric Corp Radio detector apparatus

Also Published As

Publication number Publication date
US3172040A (en) 1965-03-02
DE1201424B (de) 1965-09-23
GB989860A (en) 1965-04-22
BE623643A (pt)
SE308742B (pt) 1969-02-24
FR1337030A (fr) 1963-09-06

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