CA432262A - Frequency modulation radio receiver - Google Patents

Frequency modulation radio receiver

Info

Publication number
CA432262A
CA432262A CA432262A CA432262DA CA432262A CA 432262 A CA432262 A CA 432262A CA 432262 A CA432262 A CA 432262A CA 432262D A CA432262D A CA 432262DA CA 432262 A CA432262 A CA 432262A
Authority
CA
Canada
Prior art keywords
frequency modulation
radio receiver
modulation radio
receiver
frequency
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
CA432262A
Other languages
French (fr)
Inventor
B. Dome Robert
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.)
General Electric Canada Co
Original Assignee
Canadian General Electric Co Ltd
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 date
Application granted granted Critical
Publication of CA432262A publication Critical patent/CA432262A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03D3/08—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 diodes, e.g. Foster-Seeley discriminator
    • 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
    • H03D3/08—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 diodes, e.g. Foster-Seeley discriminator
    • H03D3/10—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 diodes, e.g. Foster-Seeley discriminator in which the diodes are simultaneously conducting during the same half period of the signal, e.g. radio detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes
    • H03G3/26—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems
    • H03G3/28—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise, e.g. squelch systems in frequency-modulation receivers ; in angle-modulation receivers
CA432262A 1943-04-27 Frequency modulation radio receiver Expired CA432262A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US484718A US2362806A (en) 1943-04-27 1943-04-27 Frequency modulation receiver

Publications (1)

Publication Number Publication Date
CA432262A true CA432262A (en) 1946-01-01

Family

ID=23925312

Family Applications (1)

Application Number Title Priority Date Filing Date
CA432262A Expired CA432262A (en) 1943-04-27 Frequency modulation radio receiver

Country Status (5)

Country Link
US (1) US2362806A (en)
BE (3) BE479153A (en)
CA (1) CA432262A (en)
FR (2) FR938602A (en)
GB (1) GB594769A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519890A (en) * 1944-12-09 1950-08-22 Rca Corp Angle modulated wave receiver
US2501120A (en) * 1945-04-26 1950-03-21 Rca Corp Frequency modulation receiver tuning aid
US2525359A (en) * 1946-04-04 1950-10-10 Rca Corp Frequency modulation receiver tuning aid
US2620439A (en) * 1947-11-05 1952-12-02 Gen Electric Noise balancing circuits
US2612602A (en) * 1948-11-19 1952-09-30 Gen Electric Noise suppression circuit
CN107453346B (en) * 2016-05-30 2022-03-18 中国电力科学研究院 Load curve time interval division method suitable for power distribution network reconstruction

Also Published As

Publication number Publication date
BE479154A (en)
BE482547A (en)
FR961086A (en) 1950-05-03
BE479153A (en)
GB594769A (en) 1947-11-19
US2362806A (en) 1944-11-14
FR938602A (en) 1948-10-20

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