ENCODER AND PREDICTIVE CODING METHOD, DECODER AND DECODING METHOD, PREDICTIVE CODING AND DECODING SYSTEM AND METHOD, AND PREDICTIVE CODED INFORMATION SIGNAL

摘要

FIELD: physics, communication.SUBSTANCE: invention relates to predictive coding of an information signal. An encoder for predictive coding of an information signal, having a sequence of signal values (s(n)), comprises a prediction unit for performing adaptive prediction depending on the sequence of signal values (s(n)) and depending on one or more weight values ?to obtain values of a predicted signal (s'(n)), wherein the prediction unit is configured to reset weight values at moments in time which depend on values of the information signal, and wherein the prediction unit is configured to adapt weight values to the signal between subsequent resets.EFFECT: high accuracy of predictive coding of an information signal and improved maintenance of signal quality.26 cl, 13 dwg