3836949

Information

• Patent Grant
• 3836949

• References
• Source

• Patent Number

  3,836,949

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1974
  50 years ago

• CPC

  • G01S15/12 - wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
  • G01S13/18 - wherein range gates are used
  • G01S15/107 - using frequency agility of carrier wave
  • Y10S367/901 - Noise or unwanted signal reduction in nonseismic receiving system

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices
  • 342 - Communications: directive radio wave systems and devices