3505637

Information

• Patent Grant
• 3505637

• References
• Source

• Patent Number

  3,505,637

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1970
  55 years ago

• CPC

  • G01S7/2927 - by deriving and controlling a threshold value
  • G01S3/809 - Rotating or oscillating beam systems using continuous analysis of received signal for determining direction in the plane of rotation or oscillation or for determining deviation from a predetermined direction in such a plane
  • G01S7/527 - Extracting wanted echo signals
  • 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