3872255

Information

• Patent Grant
• 3872255

• References
• Source

• Patent Number

  3,872,255

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1975
  49 years ago

• CPC

  • H03M3/02 - Delta modulation
  • H04B14/066 - using differential modulation with several bits [NDPCM]
  • H04J3/26 - in which the information and the address are simultaneously transmitted
  • H04L5/26 - combined with the use of different frequencies

• US Classifications

  • 370 - Multiplex communications
  • 375 - Pulse or digital communications