Patent ID: 6356213
Filing Date: 2002-03-12
Classification: G06T,H03M

Abstract:
A method for signal coding, comprising the steps of:a) identifying a segment of a signal for coding; b) determining a first predicted value for a given sample within said identified signal segment as a function of prior sample values; c) comparing an actual value with the first predicted value of said given sample and taking, as a primary residual value, a difference between said actual and said first predicted values; d) determining a second predicted value as a function of said first predicted value and of a predicted value for said primary residual value; e) taking, as a secondary residual value, a difference between said primary residual value and a predicted value thereof; f) repeating steps (d) and (e) at least once to find a further predicted value as a function of said first predicted value and of predicted values of said primary and secondary residual values; and g) selecting a predictor value as a statistical function of said first, said second and said further predicted values.