FR1048331A - Oscillateurs électriques modulés en fréquence - Google Patents

Oscillateurs électriques modulés en fréquence

Info

Publication number
FR1048331A
FR1048331A FR1048331DA FR1048331A FR 1048331 A FR1048331 A FR 1048331A FR 1048331D A FR1048331D A FR 1048331DA FR 1048331 A FR1048331 A FR 1048331A
Authority
FR
France
Prior art keywords
frequency modulated
modulated electric
electric oscillators
oscillators
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
Other languages
English (en)
Inventor
Louis John Heaton-Armstrong
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1048331A publication Critical patent/FR1048331A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Transmitters (AREA)
  • Near-Field Transmission Systems (AREA)
FR1048331D 1950-07-12 1951-07-12 Oscillateurs électriques modulés en fréquence Expired FR1048331A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1745450A GB671194A (en) 1950-07-12 1950-07-12 Improvements in or relating to electric frequency modulated oscillators

Publications (1)

Publication Number Publication Date
FR1048331A true FR1048331A (fr) 1953-12-21

Family

ID=10095458

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1048331D Expired FR1048331A (fr) 1950-07-12 1951-07-12 Oscillateurs électriques modulés en fréquence

Country Status (2)

Country Link
FR (1) FR1048331A (fr)
GB (1) GB671194A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925561A (en) * 1955-07-01 1960-02-16 Motorola Inc Crystal oscillator system
US2913677A (en) * 1956-10-31 1959-11-17 Hermes Electronics Co Frequency modulating system for crystal oscillators

Also Published As

Publication number Publication date
GB671194A (en) 1952-04-30

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