FR1022399A - Perfectionnements apportés aux oscillateurs électriques commandés par des cristaux - Google Patents

Perfectionnements apportés aux oscillateurs électriques commandés par des cristaux

Info

Publication number
FR1022399A
FR1022399A FR1022399DA FR1022399A FR 1022399 A FR1022399 A FR 1022399A FR 1022399D A FR1022399D A FR 1022399DA FR 1022399 A FR1022399 A FR 1022399A
Authority
FR
France
Prior art keywords
crystals
electric oscillators
oscillators controlled
controlled
electric
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.)
British Telecommunications PLC
British Telecommunications Research Ltd
Original Assignee
British Telecommunications PLC
British Telecommunications Research 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 British Telecommunications PLC, British Telecommunications Research Ltd filed Critical British Telecommunications PLC
Application granted granted Critical
Publication of FR1022399A publication Critical patent/FR1022399A/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
    • H03B5/30—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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/066—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode particular circuits having a special characteristic

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
FR1022399D 1949-07-22 1950-07-05 Perfectionnements apportés aux oscillateurs électriques commandés par des cristaux Expired FR1022399A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19401/49A GB669863A (en) 1949-07-22 1949-07-22 Improvements in and relating to crystal-controlled electric oscillation generators

Publications (1)

Publication Number Publication Date
FR1022399A true FR1022399A (fr) 1953-03-04

Family

ID=10128740

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1022399D Expired FR1022399A (fr) 1949-07-22 1950-07-05 Perfectionnements apportés aux oscillateurs électriques commandés par des cristaux

Country Status (5)

Country Link
US (1) US2718593A (fr)
DE (1) DE818376C (fr)
FR (1) FR1022399A (fr)
GB (1) GB669863A (fr)
NL (1) NL154646B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068426A (en) * 1958-06-19 1962-12-11 Georgia Tech Res Inst Crystal oscillator utilizing crystal holder capacity at very high frequencies
US3217269A (en) * 1962-05-04 1965-11-09 Philco Corp Crystal controlled multivibrator
US3327121A (en) * 1965-01-18 1967-06-20 Westinghouse Electric Corp Laser beam modulator
US3890580A (en) * 1973-12-27 1975-06-17 Motorola Inc Two phase oscillator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053787A (en) * 1933-03-06 1936-09-08 Rca Corp Thermionic oscillation generator
US2111603A (en) * 1936-02-10 1938-03-22 Rca Corp Phase modulation
US2303862A (en) * 1940-06-01 1942-12-01 Rca Corp Oscillation generator and amplifier
US2557310A (en) * 1948-05-17 1951-06-19 Phillips Petroleum Co Oscillator circuit

Also Published As

Publication number Publication date
DE818376C (de) 1951-10-25
US2718593A (en) 1955-09-20
GB669863A (en) 1952-04-09
NL154646B (nl)

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