FR1312325A - Détecteur de la fréquence de récurrence d'une oscillation - Google Patents

Détecteur de la fréquence de récurrence d'une oscillation

Info

Publication number
FR1312325A
FR1312325A FR885826A FR885826A FR1312325A FR 1312325 A FR1312325 A FR 1312325A FR 885826 A FR885826 A FR 885826A FR 885826 A FR885826 A FR 885826A FR 1312325 A FR1312325 A FR 1312325A
Authority
FR
France
Prior art keywords
pulses
signal
subcarrier
differentiated
inductor
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
FR885826A
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.)
Svenska AB Gasaccumulator
Original Assignee
Svenska AB Gasaccumulator
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 Svenska AB Gasaccumulator filed Critical Svenska AB Gasaccumulator
Application granted granted Critical
Publication of FR1312325A publication Critical patent/FR1312325A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • 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
    • 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
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/08—Transmission systems not characterised by the medium used for transmission characterised by the use of a sub-carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/20—Frequency-division multiplex systems in which at least one carrier is angle-modulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR885826A 1961-01-24 1962-01-24 Détecteur de la fréquence de récurrence d'une oscillation Expired FR1312325A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84636A US3146402A (en) 1961-01-24 1961-01-24 Frequency-modulated subcarrier detector

Publications (1)

Publication Number Publication Date
FR1312325A true FR1312325A (fr) 1962-12-14

Family

ID=22186244

Family Applications (1)

Application Number Title Priority Date Filing Date
FR885826A Expired FR1312325A (fr) 1961-01-24 1962-01-24 Détecteur de la fréquence de récurrence d'une oscillation

Country Status (7)

Country Link
US (1) US3146402A (fr)
CH (1) CH393449A (fr)
DE (1) DE1195825B (fr)
FR (1) FR1312325A (fr)
GB (1) GB945268A (fr)
NL (2) NL273844A (fr)
SE (1) SE305667B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3277384A (en) * 1963-11-04 1966-10-04 Hazeltine Research Inc Balanced frequency detector apparatus
US3843928A (en) * 1972-07-28 1974-10-22 Matsushita Electric Ind Co Ltd Fm demodulation system providing noise reduction property

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227906A (en) * 1938-10-29 1941-01-07 Rca Corp Envelope current device
US2284444A (en) * 1940-08-27 1942-05-26 Bell Telephone Labor Inc Demodulation circuit
US2441957A (en) * 1942-11-13 1948-05-25 Standard Telephones Cables Ltd Demodulator for frequency modulated waves
US2484556A (en) * 1946-11-12 1949-10-11 Gen Electric Demodulator for frequency modulated signals
US2947863A (en) * 1954-03-17 1960-08-02 Hoffman Electronics Corp Linear discriminators or the like

Also Published As

Publication number Publication date
US3146402A (en) 1964-08-25
GB945268A (en) 1963-12-23
SE305667B (fr) 1968-11-04
CH393449A (de) 1965-06-15
DE1195825B (de) 1965-07-01
NL273844A (fr)
NL133956C (fr)

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