US PATENT SUBCLASS 84 / 654
.~.~.~.~ Fundamental tone detection or extraction

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
600  DF  .~ Electrical musical tone generation {5}
647  DF  .~.~ Digital combinational circuit {7}
653  DF  .~.~.~ Selecting circuits {5}
654.~.~.~.~ Fundamental tone detection or extraction

DEFINITION

Classification: 84/654

Fundamental tone detection or extraction:

(under subclass 653) Subject matter wherein the fundamental or pitch is detected and used to activate or modify a musical system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

616+, for fundamental tone detection or extraction with digital storage.