GB498811A - Improvements in or relating to devices for receiving high-frequency oscillations of variable frequency - Google Patents

Improvements in or relating to devices for receiving high-frequency oscillations of variable frequency

Info

Publication number
GB498811A
GB498811A GB20327/38A GB2032738A GB498811A GB 498811 A GB498811 A GB 498811A GB 20327/38 A GB20327/38 A GB 20327/38A GB 2032738 A GB2032738 A GB 2032738A GB 498811 A GB498811 A GB 498811A
Authority
GB
United Kingdom
Prior art keywords
frequency
tuning
control
band
circuit
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
GB20327/38A
Other languages
English (en)
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
Publication of GB498811A publication Critical patent/GB498811A/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

Landscapes

  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Noise Elimination (AREA)
GB20327/38A 1937-07-10 1938-07-08 Improvements in or relating to devices for receiving high-frequency oscillations of variable frequency Expired GB498811A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB498811A true GB498811A (en) 1939-01-13

Family

ID=4516834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20327/38A Expired GB498811A (en) 1937-07-10 1938-07-08 Improvements in or relating to devices for receiving high-frequency oscillations of variable frequency

Country Status (5)

Country Link
BE (1) BE429081A (forum.php)
CH (1) CH200856A (forum.php)
DE (1) DE711593C (forum.php)
FR (1) FR840537A (forum.php)
GB (1) GB498811A (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113093049A (zh) * 2021-03-19 2021-07-09 威胜集团有限公司 故障电弧定位诊断方法、装置及计算机可读存储介质

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113093049A (zh) * 2021-03-19 2021-07-09 威胜集团有限公司 故障电弧定位诊断方法、装置及计算机可读存储介质
CN113093049B (zh) * 2021-03-19 2023-10-03 威胜集团有限公司 故障电弧定位诊断方法、装置及计算机可读存储介质

Also Published As

Publication number Publication date
FR840537A (fr) 1939-04-27
DE711593C (de) 1941-10-14
CH200856A (de) 1938-10-31
BE429081A (forum.php)

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