FR87133E - - Google Patents

Info

Publication number
FR87133E
FR87133E FR733A FR87133DA FR87133E FR 87133 E FR87133 E FR 87133E FR 733 A FR733 A FR 733A FR 87133D A FR87133D A FR 87133DA FR 87133 E FR87133 E FR 87133E
Authority
FR
France
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.)
Active
Application number
FR733A
Inventor
Charles William Earp
Francis Giles Overbury
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.)
Publication of FR87133E publication Critical patent/FR87133E/fr
Active 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
    • H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
    • H03D3/14—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of semiconductor devices having more than two electrodes
    • 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
    • G01S1/08—Systems for determining direction or position line
    • G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR733A 1964-01-03 Active FR87133E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34964A GB1046281A (en) 1964-01-03 1964-01-03 Radio receiver incorporating a harmonic discriminator

Publications (1)

Publication Number Publication Date
FR87133E true FR87133E (fr)

Family

ID=9702829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR733A Active FR87133E (fr) 1964-01-03

Country Status (3)

Country Link
DE (1) DE1256275B (fr)
FR (1) FR87133E (fr)
GB (1) GB1046281A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162607A (en) * 1979-06-05 1980-12-18 Victor Co Of Japan Ltd Fm demodulation circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB412904A (en) * 1932-09-26 1934-07-05 Marconi Wireless Telegraph Co Improvements in or relating to modulated carrier wave communication systems
US2413913A (en) * 1942-10-29 1947-01-07 Rca Corp Frequency discriminator circuit
US2694143A (en) * 1948-11-12 1954-11-09 Torrence H Chambers Balanced phase detector
US2961613A (en) * 1956-01-19 1960-11-22 Hughes Aircraft Co Linear frequency discriminator

Also Published As

Publication number Publication date
GB1046281A (en) 1966-10-19
DE1256275B (de) 1967-12-14

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