FR722059A - Devices of the non-mechanical type for controlling reactance, particularly applicable to high-frequency signaling systems - Google Patents

Devices of the non-mechanical type for controlling reactance, particularly applicable to high-frequency signaling systems

Info

Publication number
FR722059A
FR722059A FR722059DA FR722059A FR 722059 A FR722059 A FR 722059A FR 722059D A FR722059D A FR 722059DA FR 722059 A FR722059 A FR 722059A
Authority
FR
France
Prior art keywords
devices
mechanical type
particularly applicable
signaling systems
frequency signaling
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR722059A publication Critical patent/FR722059A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element
FR722059D 1930-08-01 1931-07-22 Devices of the non-mechanical type for controlling reactance, particularly applicable to high-frequency signaling systems Expired FR722059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23216/30A GB360891A (en) 1930-08-01 1930-08-01 Electrical frequency control systems

Publications (1)

Publication Number Publication Date
FR722059A true FR722059A (en) 1932-03-11

Family

ID=10192033

Family Applications (1)

Application Number Title Priority Date Filing Date
FR722059D Expired FR722059A (en) 1930-08-01 1931-07-22 Devices of the non-mechanical type for controlling reactance, particularly applicable to high-frequency signaling systems

Country Status (5)

Country Link
US (1) US1988609A (en)
DE (1) DE603793C (en)
FR (1) FR722059A (en)
GB (1) GB360891A (en)
NL (1) NL35814C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436946A (en) * 1941-04-10 1948-03-02 Virgil A Hamilton Capacity-type phonograph pickup
US2425657A (en) * 1941-04-17 1947-08-12 Rca Corp Short-wave apparatus
US2438425A (en) * 1942-11-26 1948-03-23 Rca Corp Computing device
US2513428A (en) * 1947-10-20 1950-07-04 Philco Corp Superregenerator
CN102707106B (en) * 2012-05-18 2014-08-20 宁波伟吉电力科技有限公司 Electric power subharmonic digital signal source

Also Published As

Publication number Publication date
NL35814C (en)
GB360891A (en) 1931-11-02
US1988609A (en) 1935-01-22
DE603793C (en) 1934-10-11

Similar Documents

Publication Publication Date Title
FR843966A (en) Ultra high frequency signaling systems
FR50259E (en) Improvements to systems for signaling, communication, indication and remote control by high frequency currents
FR42985E (en) Switching devices for high frequency transmission lines
FR722059A (en) Devices of the non-mechanical type for controlling reactance, particularly applicable to high-frequency signaling systems
FR702885A (en) Improvements to devices for the production, control or comparison of electric currents
FR818507A (en) High frequency signaling systems
FR725608A (en) Improvements to distributing devices for telegraph systems
FR795592A (en) Repeater devices for telegraph or similar systems
FR820118A (en) Improvements to very high frequency radio electrical signaling systems
FR560763A (en) Double valve for liquid line
FR791875A (en) Improvements to high frequency signaling systems
FR787541A (en) Improvements to t signaling systems. s. f. for aircraft
FR826794A (en) Transmission networks for electrical signaling systems
FR729723A (en) Improvements to impedance connection devices for railway systems
FR610895A (en) Improvements to high frequency current signaling systems
FR773317A (en) Double elastic clip for all uses
FR538621A (en) Extendable safety clip for all uses
FR553049A (en) Improvements to selector systems, more particularly for printing telegraphs
FR717778A (en) Improvements to high frequency electrical signaling systems
FR773796A (en) Improvements to high frequency signaling systems
FR799386A (en) Improvements to coupling devices for telegraph installations
FR666929A (en) Improvements to warning devices for compressors or other similar applications
FR45709E (en) Improvements to frequency control devices
FR812274A (en) Improvements to high frequency signaling systems
FR690398A (en) Improvements to signaling devices using high frequency electromagnetic oscillations