3519740

Information

• Patent Grant
• 3519740

• References
• Source

• Patent Number

  3,519,740

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1970
  54 years ago

• CPC

  • H03D1/2281 - using a phase locked loop
  • H03C3/06 - Means for changing frequency deviation
  • H03D1/22 - Homodyne or synchrodyne circuits
  • H03D3/004 - wherein the demodulated signal is used for controlling an oscillator
  • H03D5/00 - Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
  • H04B15/06 - by local oscillators of receivers
  • H04N5/50 - Tuning indicators Automatic tuning control

• US Classifications

  • 455 - Telecommunications
  • 329 - Demodulators
  • 348 - Television