US PATENT SUBCLASS 84 / 627
.~.~.~.~.~ Envelope shaping (i.e., attack, decay, sustain, or release)

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
600  DF  .~ Electrical musical tone generation {5}
601  DF  .~.~ Data storage {6}
602  DF  .~.~.~ Digital memory circuit (e.g., RAM, ROM, etc.) {9}
626  DF  .~.~.~.~ Expression or special effects (e.g., force or velocity responsive, etc.) {7}
627.~.~.~.~.~ Envelope shaping (i.e., attack, decay, sustain, or release)

DEFINITION

Classification: 84/627

Envelope shaping (i.e., attack, decay, sustain or release):

(under subclass 626) Subject matter for providing or modifying an amplitude contour of an activated tone.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

306+, for signal shaping by amplitude control.

333, Wave Transmission Lines and Networks, appropriate subclasses for networks delay.