GB598571A - Improvements in or relating to frequency transposing apparatus - Google Patents

Improvements in or relating to frequency transposing apparatus

Info

Publication number
GB598571A
GB598571A GB17331/45A GB1733145A GB598571A GB 598571 A GB598571 A GB 598571A GB 17331/45 A GB17331/45 A GB 17331/45A GB 1733145 A GB1733145 A GB 1733145A GB 598571 A GB598571 A GB 598571A
Authority
GB
United Kingdom
Prior art keywords
frequency
input
cam
heterodyning
produce
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
GB17331/45A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB598571A publication Critical patent/GB598571A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
GB17331/45A 1944-04-20 1945-07-06 Improvements in or relating to frequency transposing apparatus Expired GB598571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR991642T 1944-04-20

Publications (1)

Publication Number Publication Date
GB598571A true GB598571A (en) 1948-02-20

Family

ID=9553782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17331/45A Expired GB598571A (en) 1944-04-20 1945-07-06 Improvements in or relating to frequency transposing apparatus

Country Status (3)

Country Link
BE (1) BE459109A (it)
FR (1) FR991642A (it)
GB (1) GB598571A (it)

Also Published As

Publication number Publication date
FR991642A (fr) 1951-10-08
BE459109A (it)

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