FR1091248A - Perfectionnements aux oscillateurs à fréquence variable - Google Patents

Perfectionnements aux oscillateurs à fréquence variable

Info

Publication number
FR1091248A
FR1091248A FR1091248DA FR1091248A FR 1091248 A FR1091248 A FR 1091248A FR 1091248D A FR1091248D A FR 1091248DA FR 1091248 A FR1091248 A FR 1091248A
Authority
FR
France
Prior art keywords
variable frequency
frequency oscillator
oscillator
variable
oscillator improvements
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR1091248A publication Critical patent/FR1091248A/fr
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
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/20—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a harmonic phase-locked loop, i.e. a loop which can be locked to one of a number of harmonically related frequencies applied to it
    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
FR1091248D 1953-01-08 1954-01-08 Perfectionnements aux oscillateurs à fréquence variable Expired FR1091248A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB659/53A GB742656A (en) 1953-01-08 1953-01-08 Improvements in or relating to variable frequency oscillators

Publications (1)

Publication Number Publication Date
FR1091248A true FR1091248A (fr) 1955-04-08

Family

ID=9708245

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1091248D Expired FR1091248A (fr) 1953-01-08 1954-01-08 Perfectionnements aux oscillateurs à fréquence variable

Country Status (3)

Country Link
US (1) US2840711A (fr)
FR (1) FR1091248A (fr)
GB (1) GB742656A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2913671A (en) * 1957-01-22 1959-11-17 Gen Electric High input impedance transistor amplifier
US3621452A (en) * 1969-11-20 1971-11-16 Farinon Electric Phase detector and oscillator system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236532A (en) * 1937-02-04 1941-04-01 Thomas B Gibbs Constant frequency generator
BE469203A (fr) * 1945-09-20
US2479180A (en) * 1945-10-08 1949-08-16 Borg George W Corp Frequency divider
US2437609A (en) * 1946-08-07 1948-03-09 Farnsworth Res Corp Frequency comparison apparatus
US2490500A (en) * 1946-12-28 1949-12-06 Rca Corp Stabilized oscillator generator
NL150323B (nl) * 1948-04-15 Ideal Kk Zelfopenende en -sluitende paraplu.
US2595608A (en) * 1948-12-30 1952-05-06 Rca Corp Automatically tuned wide range receiver and transmitter
US2627033A (en) * 1949-12-01 1953-01-27 Garold K Jensen Frequency meter
US2774872A (en) * 1952-12-17 1956-12-18 Bell Telephone Labor Inc Phase shifting circuit

Also Published As

Publication number Publication date
US2840711A (en) 1958-06-24
GB742656A (en) 1955-12-30

Similar Documents

Publication Publication Date Title
FR1131189A (fr) Oscillateur
FR1077208A (fr) Oscillateur à transistrons à haute stabilité
FR1110001A (fr) Oscillateur à fréquence stabilisée
FR1128810A (fr) Diviseur de fréquence
CH329545A (de) Frequenzwellenfilter
FR1113390A (fr) Détecteur de modulation de fréquence linéaire
FR68385E (fr) Démodulateur de fréquence
FR1167523A (fr) Magnétron à fréquence de résonance variable
FR1091248A (fr) Perfectionnements aux oscillateurs à fréquence variable
FR1108985A (fr) Perfectionnements aux cavités résonnantes
FR1130374A (fr) Oscillateurs à fréquence commandée
FR1049912A (fr) Oscillateur à variation de fréquence
FR1080677A (fr) Perfectionnements aux vanues seeteur
FR1197017A (fr) Perfectionnements aux oscillateurs à modulation de fréquence
FR1110645A (fr) Perfectionnements aux compresseurs
FR1105848A (fr) Oscillateur à transistor stabilisé
FR1114389A (fr) Discriminateur de fréquence
FR1212983A (fr) Oscillateur à fréquence variable
FR1129797A (fr) Récepteur radio à modulation de fréquence perfectionné
FR1105609A (fr) Perfectionnements aux oscillateurs à ultra-haute fréquence
FR1114685A (fr) Diviseur de fréquence
FR1105843A (fr) Perfectionnements aux cavités résonnantes
CH335725A (de) Hochfrequenz-Oszillator
FR1092708A (fr) Perfectionnements aux oscillateurs à fréquence variable à commande à distance
FR1085441A (fr) Perfectionnements aux oscillateurs à superréaction