US PATENT SUBCLASS 84 / 692
.~.~.~ Tone synthesis or timbre control

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
600  DF  .~ Electrical musical tone generation {5}
671  DF  .~.~ Electric analog oscillators {9}
692.~.~.~ Tone synthesis or timbre control {4}
693  DF  .~.~.~.~> Time varying or dynamic fourier components
694  DF  .~.~.~.~> Modulation {2}
697  DF  .~.~.~.~> Mixing {1}
699  DF  .~.~.~.~> Filtering {1}

DEFINITION

Classification: 84/692

Tone synthesis or timbre control:

(under subclass 671) Subject matter wherein the harmonic content of a note is controlled or modified.

SEE OR SEARCH THIS CLASS, SUBCLASS:

622, for tone synthesis or timbre control with digital storage.

659, for tone synthesis or timbre control with digital combinational circuit.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

106+, for waveform or waveshape determinative systems.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, 100+, for miscellaneous signal converting, shaping, or generating.

333, Wave Transmission Lines and Networks,

28, for audio tone control.

381, Electrical Audio Signal Processing Systems and Devices,

101, for automatic tone control; subclass 118 for signal processing of musical instruments; subclasses 101 through 103 for automatic tone or equalization of an audio signal.