FR997231A - Device for achieving a variable impedance - Google Patents

Device for achieving a variable impedance

Info

Publication number
FR997231A
FR997231A FR997231DA FR997231A FR 997231 A FR997231 A FR 997231A FR 997231D A FR997231D A FR 997231DA FR 997231 A FR997231 A FR 997231A
Authority
FR
France
Prior art keywords
achieving
variable impedance
impedance
variable
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)
Inventor
Marcel Denis
Andre Julien
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite 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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Application granted granted Critical
Publication of FR997231A publication Critical patent/FR997231A/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
    • 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
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
FR997231D 1945-06-20 1945-06-20 Device for achieving a variable impedance Expired FR997231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR997231T 1945-06-20

Publications (1)

Publication Number Publication Date
FR997231A true FR997231A (en) 1952-01-03

Family

ID=9558456

Family Applications (1)

Application Number Title Priority Date Filing Date
FR997231D Expired FR997231A (en) 1945-06-20 1945-06-20 Device for achieving a variable impedance

Country Status (1)

Country Link
FR (1) FR997231A (en)

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