3863197

Information

• Patent Grant
• 3863197

• References
• Source

• Patent Number

  3,863,197

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1975
  50 years ago

• CPC

  • G01S15/897 - using application of holographic techniques
  • G01S7/529 - Gain of receiver varied automatically during pulse-recurrence period
  • G03H3/00 - Holographic processes or apparatus using ultrasonic, sonic or infrasonic waves for obtaining holograms Processes or apparatus for obtaining an optical image from them
  • Y10S359/901 - Acoustic holography
  • Y10S367/90 - Sonar time varied gain control systems

• US Classifications

  • 367 - Communications, electrical: acoustic wave systems and devices
  • 073 - Measuring and testing
  • 342 - Communications: directive radio wave systems and devices
  • 359 - Optical: systems and elements