3392389

Information

• Patent Grant
• 3392389

• References
• Source

• Patent Number

  3,392,389

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1968
  56 years ago

• CPC

  • 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
  • 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

• US Classifications

  • 342 - Communications: directive radio wave systems and devices