3801721

Information

• Patent Grant
• 3801721

• References
• Source

• Patent Number

  3,801,721

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1974
  50 years ago

• CPC

  • G10H1/06 - Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
  • G10H5/002 - Instruments using voltage controlled oscillators and amplifiers or voltage controlled oscillators and filters
  • G10H5/04 - with semiconductor devices as active elements
  • G10H2250/475 - FM synthesis
  • Y10S84/02 - Preference networks
  • Y10S84/20 - Monophonic

• US Classifications

  • 084 - Music
  • 984 - Musical instruments