FR719359A - Improvements in radio-receivers and methods of using them - Google Patents

Improvements in radio-receivers and methods of using them

Info

Publication number
FR719359A
FR719359A FR719359DA FR719359A FR 719359 A FR719359 A FR 719359A FR 719359D A FR719359D A FR 719359DA FR 719359 A FR719359 A FR 719359A
Authority
FR
France
Prior art keywords
receivers
radio
methods
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
Other languages
French (fr)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR719359A publication Critical patent/FR719359A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • 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
FR719359D 1930-07-07 1931-06-08 Improvements in radio-receivers and methods of using them Expired FR719359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US465852A US2167058A (en) 1930-07-07 1930-07-07 Automatic volume control

Publications (1)

Publication Number Publication Date
FR719359A true FR719359A (en) 1932-02-04

Family

ID=23849429

Family Applications (1)

Application Number Title Priority Date Filing Date
FR719359D Expired FR719359A (en) 1930-07-07 1931-06-08 Improvements in radio-receivers and methods of using them

Country Status (2)

Country Link
US (1) US2167058A (en)
FR (1) FR719359A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425495A (en) * 1943-10-30 1947-08-12 Rca Corp Two-way telephone system
US2800582A (en) * 1953-06-30 1957-07-23 Westinghouse Air Brake Co Noise suppression and limiter circuits

Also Published As

Publication number Publication date
US2167058A (en) 1939-07-25

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