US PATENT SUBCLASS 348 / 415
.~.~.~ Including temporal prediction (e.g., frame difference)

Current as of: June, 1999
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384  DF  BANDWIDTH REDUCTION SYSTEM {7}
390  DF  .~ Bit-rate reduction {11}
409  DF  .~.~ Involving difference transmission (e.g., predictive) {5}
415.~.~.~ Including temporal prediction (e.g., frame difference) {2}
416  DF  .~.~.~.~> Including motion vector
417  DF  .~.~.~.~> Involving vector quantization

DEFINITION

Classification: 348/415

Including temporal prediction (e.g., frame difference):

(under subclass 409) Subject matter wherein the comparison signal represents a prior image in time.