3906431

Information

• Patent Grant
• 3906431

• References
• Source

• Patent Number

  3,906,431

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1975
  49 years ago

• CPC

  • G10K11/008 - Arrays of transducers
  • B06B1/0637 - Spherical array
  • G01S3/8038 - derived from different combinations of signals from separate transducers comparing sum with difference
  • G01S3/8083 - determining direction of source

• US Classifications

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