FR882609A - - Google Patents

Info

Publication number
FR882609A
FR882609A FR882609DA FR882609A FR 882609 A FR882609 A FR 882609A FR 882609D A FR882609D A FR 882609DA FR 882609 A FR882609 A FR 882609A
Authority
FR
France
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.)
Active
Application number
Other languages
French (fr)
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 FR882609A publication Critical patent/FR882609A/fr
Priority claimed from US321378A external-priority patent/US2283523A/en
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/22—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element in which an automatic frequency control circuit is brought into action after the scanning action has been stopped
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/042—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant with reactance tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
FR882609D 1940-02-29 Active FR882609A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US321379A US2300081A (en) 1940-02-29 1940-02-29 Method and apparatus for radio receiving
US321378A US2283523A (en) 1940-02-29 1940-02-29 Scanning radio receiver

Publications (1)

Publication Number Publication Date
FR882609A true FR882609A (en)

Family

ID=26982936

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882609D Active FR882609A (en) 1940-02-29

Country Status (3)

Country Link
US (1) US2300081A (en)
FR (1) FR882609A (en)
NL (1) NL65298C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467564A (en) * 1944-10-13 1949-04-19 Hazeltine Research Inc Wave-signal receiver, including a disabling arrangement
US2533662A (en) * 1947-04-11 1950-12-12 Automatic Elect Lab Automatic trunk selecting system for radio telephone stations
US2523315A (en) * 1947-06-06 1950-09-26 Farnsworth Res Corp Selective calling system
DE1074674B (en) * 1954-04-21 1960-02-04 General Motors Corporation, Detroit, Mich. (V. St. A.) Signal-controlled tuning device for radio receivers
US4190838A (en) * 1978-07-20 1980-02-26 R A Electronics, Inc. Radiation detector
JPH04331513A (en) * 1991-05-07 1992-11-19 Matsushita Electric Ind Co Ltd Selective call receiver

Also Published As

Publication number Publication date
NL65298C (en)
US2300081A (en) 1942-10-27

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