FR1245232A - Discriminateur différentiel de fréquence - Google Patents

Discriminateur différentiel de fréquence

Info

Publication number
FR1245232A
FR1245232A FR815545A FR815545A FR1245232A FR 1245232 A FR1245232 A FR 1245232A FR 815545 A FR815545 A FR 815545A FR 815545 A FR815545 A FR 815545A FR 1245232 A FR1245232 A FR 1245232A
Authority
FR
France
Prior art keywords
frequency discriminator
differential frequency
differential
discriminator
frequency
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
FR815545A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1245232A publication Critical patent/FR1245232A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
FR815545A 1959-01-16 1960-01-13 Discriminateur différentiel de fréquence Expired FR1245232A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US787306A US3035231A (en) 1959-01-16 1959-01-16 Frequency difference discriminator

Publications (1)

Publication Number Publication Date
FR1245232A true FR1245232A (fr) 1960-11-04

Family

ID=25141061

Family Applications (1)

Application Number Title Priority Date Filing Date
FR815545A Expired FR1245232A (fr) 1959-01-16 1960-01-13 Discriminateur différentiel de fréquence

Country Status (2)

Country Link
US (1) US3035231A (fr)
FR (1) FR1245232A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124745A (en) * 1960-03-02 1964-03-10 System
US3217251A (en) * 1962-01-05 1965-11-09 Bell Telephone Labor Inc Orthogonal spectral analysis apparatus for message waveforms
GB992523A (en) * 1962-12-19 1965-05-19 Gen Electric Co Ltd Improvements in or relating to apparatus for investigating the difference frequency of two oscillatory signals
US3421091A (en) * 1965-04-26 1969-01-07 Bell Telephone Labor Inc Detecting circuit for circularly polarized waves
US3439283A (en) * 1966-02-04 1969-04-15 Gen Electric Frequency shift keyed discriminating circuits
US3493876A (en) * 1966-06-28 1970-02-03 Us Army Stable coherent filter for sampled bandpass signals
US3494186A (en) * 1968-07-01 1970-02-10 Gearhart Owen Industries Method and apparatus for obtaining differential logs,especially of down-hole well bore variables
US3792364A (en) * 1972-08-03 1974-02-12 Sangamo Electric Co Method and apparatus for detecting absolute value amplitude of am suppressed carrier signals
US4499426A (en) * 1980-07-02 1985-02-12 Motorola, Inc. Baseband discriminator for frequency or transform modulation
GB2094079A (en) * 1981-02-20 1982-09-08 Philips Electronic Associated Fm demodulator
US5307517A (en) * 1991-10-17 1994-04-26 Rich David A Adaptive notch filter for FM interference cancellation
US7218850B2 (en) * 2003-08-07 2007-05-15 Lucent Technologies Inc. Apparatus and method for monitoring signal-to-noise ratio in optical transmission systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2413913A (en) * 1942-10-29 1947-01-07 Rca Corp Frequency discriminator circuit

Also Published As

Publication number Publication date
US3035231A (en) 1962-05-15

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