3434143

Information

• Patent Grant
• 3434143

• References
• Source

• Patent Number

  3,434,143

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1969
  55 years ago

• CPC

  • 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
  • G01S1/22 - the synchronised signals being frequency modulations on carrier waves and the transit times being compared by measuring difference of instantaneous frequencies of received carrier waves

• US Classifications

  • 342 - Communications: directive radio wave systems and devices