3804988

Information

• Patent Grant
• 3804988

• References
• Source

• Patent Number

  3,804,988

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • H04J1/18 - in which all the carriers are amplitude-modulated
  • H04J1/08 - Arrangements for combining channels
  • H04Q11/02 - for frequency-division multiplexing

• US Classifications

  • 370 - Multiplex communications