US PATENT SUBCLASS 375 / 244
.~ Differential

Current as of: June, 1999
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375 /   HD   PULSE OR DIGITAL COMMUNICATIONS

242  DF  PULSE CODE MODULATION {4}
244.~ Differential {3}
245  DF  .~.~> Quantizer or inverse quantizer
246  DF  .~.~> Length coding
247  DF  .~.~> Single bit (delta) {3}

DEFINITION

Classification: 375/244

Differential:

(under subclass 242) Subject matter where the difference between the actual amplitude and a predicted, or locally decoded, value of the amplitude is encoded and transmitted.

SEE OR SEARCH THIS CLASS, SUBCLASS:

240+, for predictive bandwidth compression of a digital signal.