US PATENT SUBCLASS 704 / 214
.~.~.~ Voiced or unvoiced

Current as of: June, 1999
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704 /   HD   DATA PROCESSING: SPEECH SIGNAL PROCESSING, LINGUISTICS, LANGUAGE TRANSLATION, AND AUDIO COMPRESSION/DECOMPRESSION

200  DF  SPEECH SIGNAL PROCESSING {4}
201  DF  .~ For storage or transmission {12}
211  DF  .~.~ Time {5}
214.~.~.~ Voiced or unvoiced

DEFINITION

Classification: 704/214

Voiced or unvoiced:

(under subclass 211) Subject matter wherein time measurements are used to determine the presence (voiced) or absence (unvoiced) of predominant frequency components.