FR867217A - Générateurs d'oscillations à fréquence variable - Google Patents

Générateurs d'oscillations à fréquence variable

Info

Publication number
FR867217A
FR867217A FR867217DA FR867217A FR 867217 A FR867217 A FR 867217A FR 867217D A FR867217D A FR 867217DA FR 867217 A FR867217 A FR 867217A
Authority
FR
France
Prior art keywords
variable frequency
frequency oscillation
oscillation generators
generators
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
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
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 FR867217A publication Critical patent/FR867217A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/26—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator
    • H03B5/28—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator frequency-determining element being part of bridge circuit in closed ring around which signal is transmitted; frequency-determining element being connected via a bridge circuit to such a closed ring, e.g. Wien-Bridge oscillator, parallel-T oscillator active element in amplifier being vacuum tube
FR867217D 1939-07-11 1940-09-17 Générateurs d'oscillations à fréquence variable Expired FR867217A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US283301A US2268872A (en) 1939-07-11 1939-07-11 Variable frequency oscillation generator

Publications (1)

Publication Number Publication Date
FR867217A true FR867217A (fr) 1941-10-07

Family

ID=32093508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR867217D Expired FR867217A (fr) 1939-07-11 1940-09-17 Générateurs d'oscillations à fréquence variable

Country Status (2)

Country Link
US (1) US2268872A (fr)
FR (1) FR867217A (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB524314A (en) * 1939-01-27 1940-08-02 Edmund Ramsay Wigan Improvements in and relating to thermionic valve oscillators and amplifiers
US2423952A (en) * 1941-12-12 1947-07-15 Press Wireless Inc Frequency modulation
US2468082A (en) * 1942-09-12 1949-04-26 Int Standard Electric Corp Thermistor circuit compensating for supply voltage fluctuations
FR952394A (fr) * 1942-12-16 1949-11-16 Telecommunications Sa Dispositif pour la stabilisation des oscillateurs
US2444084A (en) * 1943-06-21 1948-06-29 Rca Corp Resistance-capacitance oscillator
US2447248A (en) * 1944-12-23 1948-08-17 Curtiss Wright Corp Stabilized oscillator
US2446821A (en) * 1944-12-30 1948-08-10 Philco Corp Resistance-capacitance tuned oscillator
US2451858A (en) * 1945-01-26 1948-10-19 Gen Electric Controlled frequency oscillator
US2540727A (en) * 1945-05-05 1951-02-06 Hammond Instr Co Electrical musical instrument
US2439245A (en) * 1945-06-02 1948-04-06 Philco Corp Resistance-capacitance type oscillator
US2577235A (en) * 1945-06-05 1951-12-04 Murihead And Company Ltd Thermionic valve oscillator
US2504603A (en) * 1945-06-19 1950-04-18 Hartford Nat Bank & Trust Comp Resistance capacitance oscillator
US2586167A (en) * 1945-07-03 1952-02-19 Us Navy Oscillator
US2547338A (en) * 1945-11-21 1951-04-03 Morrison Montford Square-wave generator
US2573150A (en) * 1946-02-28 1951-10-30 Bell Telephone Labor Inc Frequency divider
US2521158A (en) * 1946-05-04 1950-09-05 Belmont Radio Corp Sawtooth current generator
US2666851A (en) * 1946-11-11 1954-01-19 Tesla Slaboproude A Radiotechn Frequency generator with phase shifter
US2568868A (en) * 1946-11-15 1951-09-25 Rca Corp Oscillation generator
US2583943A (en) * 1947-01-10 1952-01-29 Hewlett Packard Co Modified wien-bridge oscillator
US2768295A (en) * 1947-01-14 1956-10-23 Baldwin Piano Co Oscillator
US2583649A (en) * 1947-01-27 1952-01-29 Hewlett Packard Co Modified wien-bridge oscillator
FR962565A (fr) * 1947-03-04 1950-06-16
US2567269A (en) * 1947-08-30 1951-09-11 Hartford Nat Bank & Trust Co Thermionic valve oscillator
US2586803A (en) * 1947-09-10 1952-02-26 Fleming Lawrence Oscillator
US2645682A (en) * 1947-09-12 1953-07-14 Brush Dev Co Magnetic recording and reproducing
US2500788A (en) * 1947-12-06 1950-03-14 Avco Mfg Corp Multivibrator circuit
US2594485A (en) * 1948-04-15 1952-04-29 Nowak Karl Circuit organization adapted to receive or amplify electric oscillations
US2730620A (en) * 1948-05-25 1956-01-10 Airborne Instr Lab Inc Variable frequency signal generator
US2748285A (en) * 1949-04-15 1956-05-29 British Telecomm Res Ltd Start-stop oscillator
US2566981A (en) * 1949-07-20 1951-09-04 Gen Electric Low-distortion oscillator
US2648773A (en) * 1950-03-23 1953-08-11 Bell Telephone Labor Inc Polyphase oscillator
US2730579A (en) * 1950-11-25 1956-01-10 Bell Telephone Labor Inc Order wire and alarm circuits for carrier systems
NL85193C (fr) * 1952-05-17
US2807720A (en) * 1953-01-12 1957-09-24 Asea Ab Regulated oscillator
BE525820A (fr) * 1953-01-19
US2745960A (en) * 1953-06-23 1956-05-15 Rca Corp Semi-conductor signal generator
US3257611A (en) * 1962-12-05 1966-06-21 Bell Telephone Labor Inc Electrical impedance measuring bridge circuits having substantially maximum bridge sensitivities when approaching balance
JPS5250997A (en) * 1975-10-22 1977-04-23 Power Reactor & Nuclear Fuel Dev Corp Proces for successive production of uranium tetrfluoride
US8199934B2 (en) * 2007-11-16 2012-06-12 Osborne Gary T Audio level compressor
US8120436B2 (en) * 2009-03-11 2012-02-21 The Texas A&M University System System and method for implementing an oscillator
US8350484B2 (en) 2011-04-22 2013-01-08 Oliver Conrad Stanley Push button switch

Also Published As

Publication number Publication date
US2268872A (en) 1942-01-06

Similar Documents

Publication Publication Date Title
FR951645A (fr) Appareil générateur d'oscillations électriques
FR869219A (fr) Amplificateur d'oscillations périodiques
FR828278A (fr) Générateurs d'oscillations de relaxation
FR852891A (fr) Perfectionnements aux générateurs d'oscillations électriques
FR835350A (fr) Perfectionnements aux générateurs d'oscillations de relaxation
FR876921A (fr) Amortisseur d'oscillations
FR848088A (fr) Système générateur d'oscillations électriques entretenues
FR928923A (fr) Générateur d'oscillations électriques
FR792080A (fr) Générateur d'oscillations électriques
FR868152A (fr) Générateur d'oscillations
FR942146A (fr) Générateurs d'oscillations à haute fréquence
FR842849A (fr) Perfectionnements aux générateurs d'oscillations à commande extérieure
FR863341A (fr) Générateur d'ondes périodiques
FR856563A (fr) Perfectionnement aux générateurs d'oscillations de haute fréquence
FR835398A (fr) Amortisseur d'oscillations
FR863217A (fr) Générateur d'ondes périodiques
FR886918A (fr) Générateur à fréquence variable
FR875414A (fr) Générateurs d'oscillations couplés
FR866727A (fr) Perfectionnements aux générateurs d'oscillations
FR830336A (fr) Générateur d'oscillations mécaniques
FR881131A (fr) Circuit multivibrateur ou générateur d'oscillations relaxées, particulièrement pour télévision
FR841093A (fr) Générateur à auto-excitation d'oscillations électriques
FR827954A (fr) Dispositifs générateurs d'oscillations
FR863375A (fr) Générateur d'ondes périodiques
FR859240A (fr) Perfectionnements aux générateurs d'oscillations de relaxation