TREA

Analogous systems in which a beat frequency, obtained by heterodyning the signals, is compared in phase with a reference signal obtained by heterodyning the signals in a fixed reference point and transmitted therefrom

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  • CPC
  • G01S1/304
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Parent Industries

GPHYSICS G01Measuring instruments G01SRADIO 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 G01S1/00Beacons 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

Current Industry

G01S1/304Analogous systems in which a beat frequency, obtained by heterodyning the signals, is compared in phase with a reference signal obtained by heterodyning the signals in a fixed reference point and transmitted therefrom
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for synchronising a location network
    • Patent number 11,974,247
    • Issue date Apr 30, 2024
    • Locata Corporation Pty Ltd
    • David Small
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method and apparatus for synchronising a location network
    • Patent number 11,375,468
    • Issue date Jun 28, 2022
    • Locata Corporation Pty Ltd
    • David Small
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Method of radio-position-finding through determination of phases of...
    • Patent number 4,547,777
    • Issue date Oct 15, 1985
    • M.L.R. Electronique
    • Christian Lamiraux
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Radio navigation system
    • Patent number 4,490,722
    • Issue date Dec 25, 1984
    • Teledyne Industries, Inc.
    • William A. Rounion
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Two-channel receiver-indicator for phase radio systems
    • Patent number 4,307,401
    • Issue date Dec 22, 1981
    • Ivan F. Glumov
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3787844
    • Patent number 3,787,844
    • Issue date Jan 22, 1974
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3689926
    • Patent number 3,689,926
    • Issue date Sep 5, 1972
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3560980
    • Patent number 3,560,980
    • Issue date Feb 2, 1971
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3452357
    • Patent number 3,452,357
    • Issue date Jun 24, 1969
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3426350
    • Patent number 3,426,350
    • Issue date Feb 4, 1969
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3392389
    • Patent number 3,392,389
    • Issue date Jul 9, 1968
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3350713
    • Patent number 3,350,713
    • Issue date Oct 31, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3346860
    • Patent number 3,346,860
    • Issue date Oct 10, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3340533
    • Patent number 3,340,533
    • Issue date Sep 5, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3339202
    • Patent number 3,339,202
    • Issue date Aug 29, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3339196
    • Patent number 3,339,196
    • Issue date Aug 29, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3337872
    • Patent number 3,337,872
    • Issue date Aug 22, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3303499
    • Patent number 3,303,499
    • Issue date Feb 7, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3303502
    • Patent number 3,303,502
    • Issue date Feb 7, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3303501
    • Patent number 3,303,501
    • Issue date Feb 7, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3214759
    • Patent number 3,214,759
    • Issue date Oct 26, 1965
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3206751
    • Patent number 3,206,751
    • Issue date Sep 14, 1965
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    3102266
    • Patent number 3,102,266
    • Issue date Aug 27, 1963
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3085245
    • Patent number 3,085,245
    • Issue date Apr 9, 1963
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3082419
    • Patent number 3,082,419
    • Issue date Mar 19, 1963
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3051949
    • Patent number 3,051,949
    • Issue date Aug 28, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3027555
    • Patent number 3,027,555
    • Issue date Mar 27, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3027556
    • Patent number 3,027,556
    • Issue date Mar 27, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3019435
    • Patent number 3,019,435
    • Issue date Jan 30, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3015097
    • Patent number 3,015,097
    • Issue date Dec 26, 1961
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents