3866229

Information

• Patent Grant
• 3866229

• References
• Source

• Patent Number

  3,866,229

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1975
  49 years ago

• CPC

  • G01S11/10 - using Doppler effect
  • G01S1/302 - Systems in which the direction is determined by using an interferometric type transmitting antenna array
  • G01S3/46 - using aerials spaced apart and measuring frequency phase or time difference between signals therefrom
  • G01S5/02 - using radio waves
  • G01S5/14 - Determining absolute distances from a plurality of spaced points of known location
  • G01S11/02 - using radio waves
  • G01S13/46 - Indirect determination of position data
  • G01S13/58 - Velocity or trajectory determination systems Sense-of-movement determination systems
  • G01S13/66 - Radar-tracking systems Analogous systems where the wavelength or the kind of wave is irrelevant
  • G01S13/87 - Combinations of radar systems
  • G01S2013/466 - by Trilateration

• US Classifications

  • 342 - Communications: directive radio wave systems and devices
  • 356 - Optics: measuring and testing
  • 556 - Organic compounds
  • 701 - Data processing: vehicles, navigation, and relative location
  • 708 - Electrical computers: arithmetic processing and calculating