3877003

Information

• Patent Grant
• 3877003

• References
• Source

• Patent Number

  3,877,003

• Date Filed

  Not available

• Date Issued

  Tuesday, April 8, 1975
  49 years ago

• CPC

  • G01P3/489 - Digital circuits therefor
  • G01P3/60 - by measuring or comparing frequency of generated currents or voltages
  • G01R23/005 - Circuits for comparing several input signals and for indicating the result of this comparison
  • H03K5/26 - the characteristic being duration, interval, position, frequency, or sequence
  • Y10T307/812 - Differential speed between two bodies

• US Classifications

  • 340 - Communications: electrical
  • 123 - Internal-combustion engines
  • 307 - Electrical transmission or interconnection systems
  • 324 - Electricity: measuring and testing