Patent ID: 6351728
Filing Date: 2002-02-26
Classification: G10L,H04B,H04H

Abstract:
A method for processing interfered-with signals received over a channel, said signals composed of data representing a plurality of groups of a plurality of subbands comprising a media signal, said method comprising the steps of:decoding at least one group of subband signals of said channel; storing in a memory means a signal portion of at least one group of subbands of processed signal data for said channel; detecting interfered-with signal sections of at least one group of subbands with an analyzer means which detects the type and length of interference; masking said interfered-with signal sections to form at least one masked subband group signal section through usage of a selectable switching means for said group of subbands to replace said original interfered-with signal sections with a selected masking strategy by choosing from among two or more of the following alternatives: (i) transmitting sad interfered-with signal section without correction; (ii) muting said interfered-with signal section by switchably selecting a ground connection; (iii) replacing said interfered-with signal section with said processed signal portion of at least one group of subbands of said channel stored in said memory means; or (iv) replacing said interfered-with signal section with an estimated signal generated by an estimation means; whereby said masked subband signal sections are outputted from said switching means as said processed signal data; and whereby said processed signal is comprised of said processed signal data divided into at least one group of subband signal sections interected where interference has been detected and switchably replaced.