Patent ID: 7693151
Filing Date: 2010-04-06
Classification: H04L

Abstract:
1. A method for reconstructing an encoded signal conveyed along a communication path in a packet switched network, wherein the method comprising the steps of: providing a communication signal that has been encoded into a plurality of frames; determining which of said plurality of encoded frames is an essential frame, which loss would cause a deterioration in the quality of at least one proceeding frame upon decoding said at least one proceeding frame; packaging said plurality of frames into a plurality of packets, and identifying which of the packets comprise at least one essential frame; adding protecting information to at least one packet which proceeds a packet identified as a packet carrying at least one essential frame, wherein said step of determining which of said plurality of frames is an essential frame comprises at least one of the following options I-IV: I. a) processing the communication signal that has been encoded in a plurality of frames by: II. a) processing a communication signal that has been encoded in a plurality of frames by: III. a) processing a communication signal that has been encoded in a plurality of frames by: and thereafter at least partially decoding and synthesizing the given encoded frame, IV. a) processing a communication signal that has been encoded in a plurality of frames by: and thereafter at least partially decoding and synthesizing said given encoded frame to generate a second excitation vector,