US PATENT SUBCLASS 375 / 247
.~.~ Single bit (delta)

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

242  DF  PULSE CODE MODULATION {4}
244  DF  .~ Differential {3}
247.~.~ Single bit (delta) {3}
248  DF  .~.~.~> Nonamplitude delta (area, etc.)
249  DF  .~.~.~> Compand (overload prevention) {2}
252  DF  .~.~.~> Plural feedback loops

DEFINITION

Classification: 375/247

Single bit (delta):

(under subclass 244) Subject matter where there is transmitted at most one pulse for each sample of the analog signal.

(1) Note. The pulses transmitted represent the variations of the analog signal and not their real amplitude.

(2) Note. Usually a pulse is transmitted only when the analog signal has changed by an incremental amount.

SEE OR SEARCH CLASS

341, Coded Data Generation or Conversion,

77, for delta code converters and subclass 143 for analog to or from delta code conversion.