FR822127A - Receiving systems for modulated carrier waves - Google Patents

Receiving systems for modulated carrier waves

Info

Publication number
FR822127A
FR822127A FR822127DA FR822127A FR 822127 A FR822127 A FR 822127A FR 822127D A FR822127D A FR 822127DA FR 822127 A FR822127 A FR 822127A
Authority
FR
France
Prior art keywords
carrier waves
modulated carrier
receiving systems
systems
receiving
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
French (fr)
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 FR822127A publication Critical patent/FR822127A/en
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
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
    • H03D3/004—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling an oscillator, e.g. the local oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Noise Elimination (AREA)
FR822127D 1936-03-26 1937-03-25 Receiving systems for modulated carrier waves Expired FR822127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70929A US2075503A (en) 1936-03-26 1936-03-26 Reception of frequency modulated waves

Publications (1)

Publication Number Publication Date
FR822127A true FR822127A (en) 1937-12-21

Family

ID=22098207

Family Applications (1)

Application Number Title Priority Date Filing Date
FR822127D Expired FR822127A (en) 1936-03-26 1937-03-25 Receiving systems for modulated carrier waves

Country Status (4)

Country Link
US (1) US2075503A (en)
FR (1) FR822127A (en)
GB (1) GB489636A (en)
NL (1) NL49750C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914866C (en) * 1940-08-01 1954-07-12 Lorenz C Ag Transpose receiver with frequency counter-coupling
US2684439A (en) * 1949-12-19 1954-07-20 Padevco Inc Frequency modulation receiver system for overlapping waves
DE1081938B (en) * 1955-10-29 1960-05-19 Int Standard Electric Corp Radio receiver for receiving carrier frequency and sideband components according to the correlation principle
BE570280A (en) * 1957-08-12
DE1122110B (en) * 1958-03-20 1962-01-18 Nippon Electric Co Receiving system for frequency or phase modulated vibrations
US3053981A (en) * 1959-07-06 1962-09-11 Security First Nat Bank High-gain frequency modulation tuner
NL277424A (en) * 1961-04-25
US4293818A (en) * 1979-01-22 1981-10-06 International Telephone And Telegraph Corporation Frequency modulation threshold extension demodulator utilizing frequency compression feedback with frequency drift correction
US4991226A (en) * 1989-06-13 1991-02-05 Bongiorno James W FM detector with deviation manipulation
US5691666A (en) * 1995-06-07 1997-11-25 Owen; Joseph C. Full threshold FM deviation compression feedback demodulator and method

Also Published As

Publication number Publication date
NL49750C (en)
GB489636A (en) 1938-07-29
US2075503A (en) 1937-03-30

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