3128437

Information

• Patent Grant
• 3128437

• References
• Source

• Patent Number

  3,128,437

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1964
  61 years ago

• CPC

  • H04H20/88 - Stereophonic broadcast systems
  • H03D3/00 - Demodulation of angle-, frequency- or phase- modulated oscillations
  • H04B14/08 - characterised by the use of a sub-carrier
  • H04J1/20 - in which at least one carrier is angle-modulated

• US Classifications

  • 329 - Demodulators
  • 381 - Electrical audio signal processing systems and devices
  • 455 - Telecommunications