3906174

Information

• Patent Grant
• 3906174

• References
• Source

• Patent Number

  3,906,174

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1975
  51 years ago

• CPC

  • H04L1/247 - three-level transmission codes
  • H04L1/24 - Testing correct operation

• US Classifications

  • 714 - Error detection/correction and fault detection/recovery
  • 178 - Telegraphy
  • 375 - Pulse or digital communications