TREA

using time-varying interference fields

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Industry

  • CPC
  • G01S1/465
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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

G01S1/465using time-varying interference fields
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for transmitting bearing information
    • Patent number 4,385,299
    • Issue date May 24, 1983
    • International Standard Electric Corporation
    • Charles W. Earp
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3680117
    • Patent number 3,680,117
    • Issue date Jul 25, 1972
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3611384
    • Patent number 3,611,384
    • Issue date Oct 5, 1971
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3587099
    • Patent number 3,587,099
    • Issue date Jun 22, 1971
    • G01 - MEASURING TESTING
  • Information Patent Grant

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

    2536509
    • Patent number 2,536,509
    • Issue date Jan 2, 1951
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents