FR840537A - Device intended for the reception of oscillations with variable frequency and controlled tuning - Google Patents

Device intended for the reception of oscillations with variable frequency and controlled tuning

Info

Publication number
FR840537A
FR840537A FR840537DA FR840537A FR 840537 A FR840537 A FR 840537A FR 840537D A FR840537D A FR 840537DA FR 840537 A FR840537 A FR 840537A
Authority
FR
France
Prior art keywords
oscillations
reception
variable frequency
device intended
controlled tuning
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR840537A publication Critical patent/FR840537A/en
Expired 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
    • H03J7/02—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • 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
    • H03J7/045—Modification of automatic frequency control sensitivity or linearising automatic frequency control operation; Modification of the working range
FR840537D 1937-07-10 1938-07-09 Device intended for the reception of oscillations with variable frequency and controlled tuning Expired FR840537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH498811X 1937-07-10

Publications (1)

Publication Number Publication Date
FR840537A true FR840537A (en) 1939-04-27

Family

ID=4516834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR840537D Expired FR840537A (en) 1937-07-10 1938-07-09 Device intended for the reception of oscillations with variable frequency and controlled tuning

Country Status (5)

Country Link
BE (1) BE429081A (en)
CH (1) CH200856A (en)
DE (1) DE711593C (en)
FR (1) FR840537A (en)
GB (1) GB498811A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113093049B (en) * 2021-03-19 2023-10-03 威胜集团有限公司 Fault arc location diagnosis method, device and computer readable storage medium

Also Published As

Publication number Publication date
GB498811A (en) 1939-01-13
DE711593C (en) 1941-10-14
CH200856A (en) 1938-10-31
BE429081A (en)

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