3854138

Information

• Patent Grant
• 3854138

• References
• Source

• Patent Number

  3,854,138

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1974
  50 years ago

• CPC

  • G01S1/10 - using amplitude comparison of signals transmitted sequentially from aerials or aerial systems having differently-oriented overlapping directivity-characteristics
  • G01S1/302 - Systems in which the direction is determined by using an interferometric type transmitting antenna array

• US Classifications

  • 342 - Communications: directive radio wave systems and devices