FR1034075A - Arrangements de circuits pour démoduler des signaux modulés en fréquence - Google Patents

Arrangements de circuits pour démoduler des signaux modulés en fréquence

Info

Publication number
FR1034075A
FR1034075A FR1034075DA FR1034075A FR 1034075 A FR1034075 A FR 1034075A FR 1034075D A FR1034075D A FR 1034075DA FR 1034075 A FR1034075 A FR 1034075A
Authority
FR
France
Prior art keywords
modulated signals
frequency modulated
circuit arrangements
demodulating frequency
demodulating
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
Rudolph Urtel
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
Priority claimed from US313635A external-priority patent/US2774038A/en
Application granted granted Critical
Publication of FR1034075A publication Critical patent/FR1034075A/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
    • H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
    • H03D3/20—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements producing pulses whose amplitude or duration depends on phase difference
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Phase Differences (AREA)
  • Particle Accelerators (AREA)
  • Amplitude Modulation (AREA)
FR1034075D 1950-03-19 1951-03-16 Arrangements de circuits pour démoduler des signaux modulés en fréquence Expired FR1034075A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEL1441A DE860505C (de) 1950-03-19 1950-03-19 Schaltungsanordnung zur Demodulation frequenzmodulierter Schwingungen
US313635A US2774038A (en) 1952-10-08 1952-10-08 Phase discriminator

Publications (1)

Publication Number Publication Date
FR1034075A true FR1034075A (fr) 1953-07-17

Family

ID=27207273

Family Applications (3)

Application Number Title Priority Date Filing Date
FR1034075D Expired FR1034075A (fr) 1950-03-19 1951-03-16 Arrangements de circuits pour démoduler des signaux modulés en fréquence
FR1034074D Expired FR1034074A (fr) 1950-03-19 1951-03-16 Arrangement pour démoduler des signaux modulés en fréquence ou en phase
FR65437D Expired FR65437E (fr) 1950-03-19 1953-10-07 Arrangements de circuits pour démoduler des signaux modulés en fréquence

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR1034074D Expired FR1034074A (fr) 1950-03-19 1951-03-16 Arrangement pour démoduler des signaux modulés en fréquence ou en phase
FR65437D Expired FR65437E (fr) 1950-03-19 1953-10-07 Arrangements de circuits pour démoduler des signaux modulés en fréquence

Country Status (7)

Country Link
US (1) US2683215A (fr)
BE (1) BE523337A (fr)
CH (1) CH341868A (fr)
DE (2) DE860505C (fr)
FR (3) FR1034075A (fr)
GB (2) GB689355A (fr)
NL (2) NL159883B (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225348A (en) * 1937-06-12 1940-12-17 Gen Electric Phase measuring instrument
US2282101A (en) * 1939-12-22 1942-05-05 Rca Corp Detection of frequency modulated waves
US2441957A (en) * 1942-11-13 1948-05-25 Standard Telephones Cables Ltd Demodulator for frequency modulated waves
US2448526A (en) * 1946-04-10 1948-09-07 Raytheon Mfg Co Frequency discriminating circuits
US2484556A (en) * 1946-11-12 1949-10-11 Gen Electric Demodulator for frequency modulated signals
NL150323B (nl) * 1948-04-15 Ideal Kk Zelfopenende en -sluitende paraplu.
NL129790C (fr) * 1961-05-19

Also Published As

Publication number Publication date
FR1034074A (fr) 1953-07-17
CH341868A (fr) 1959-10-31
NL159884B (nl)
DE860505C (de) 1952-12-22
BE523337A (fr)
GB689355A (en) 1953-03-25
FR65437E (fr) 1956-02-20
DE1019002B (de) 1957-11-07
GB760015A (en) 1956-10-31
US2683215A (en) 1954-07-06
NL159883B (nl)

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