Patent ID: 9325544
Filing Date: 2016-04-26
CPC Classification: G10L,H04L

Claim Text:
1. A method of replacing data in a receiver that decodes a wide-band signal including a plurality of sub-band signals, comprising: receiving, in the receiver, a plurality of frames of the wide-band signal including the plurality of sub-band signals; storing samples of each of the plurality of sub-band signals in a respective buffer of a decoder; determining, by the receiver, that one of the received plurality of frames is degraded; responsive to determining that one of the received plurality of frames is degraded, generating, in a packet loss concealment module of the receiver, a replacement frame for the degraded one of the received plurality of frames; determining, by the receiver, whether a next frame received after the degraded one of the received plurality of frames is degraded; in response to determining that the next frame is not degraded, determining that the next frame is a first non-degraded frame in the received plurality of frames received after the degraded frame; selecting for replacement, by the receiver, a number of the stored samples of the plurality of sub-band signals in the first non-degraded frame, wherein the number of the stored samples selected for replacement is equal to a maximum number of samples of the first non-degraded frame stored in the decoder with at least one sample of the degraded frame; generating, by the packet loss concealment module, a replacement portion for the selected number of the stored samples of the plurality of sub-band signals in the first non-degraded frame; outputting a signal corresponding to the replacement frame and the replacement portion from the packet loss concealment modules; and outputting a decoded signal corresponding to an unaffected sub-portion of the first non-degraded frame from the decoder; synthesizing the wide-band signal into at least one of audio and video from the outputted decoded signal.