Patent ID: 6775649
Filing Date: 2004-08-10
Classification: G10L

Abstract:
A method of decoding, comprising:(a) receiving a sequence of encoded frames including an erased frame, each of said encoded frames including a value of a parameter encoded as a moving average over said each frame plus M prior frames of the value of a quantity, where M is a positive integer; (b) for said erased frame, estimating the value of said parameter by the steps of: (i) modeling the value of said parameter for said erased frame as an interpolation of the values of said parameter for a frame prior to and a frame following said erased frame; (ii) estimating the value of said parameter for said frame following said erased frame by use of the model of step (i) to eliminate the dependence of said value of said parameter on the value of said quantity for said erased frame; and (iii) using said model of step (i) and the estimate of step (ii) to estimate the value of said parameter for said erased frame.