3340533

Information

• Patent Grant
• 3340533

• References
• Source

• Patent Number

  3,340,533

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1967
  57 years ago

• CPC

  • G01S1/306 - Analogous systems in which frequency-related signals (harmonics) are compared in phase
  • G01S1/30 - the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
  • G01S1/304 - 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
  • G01S3/14 - Systems for determining direction or deviation from predetermined direction
  • G01S5/0009 - Transmission of position information to remote stations

• US Classifications

  • 342 - Communications: directive radio wave systems and devices