Patent ID: 7420993
Filing Date: 2008-09-02
Classification: H04J,H04N

Abstract:
1. A variable length code multiplexer that multiplexes a plurality of input codes including a variable length code into a multiplexed code and outputs the multiplexed code, said multiplexer comprising: a forward direction multiplexing means for multiplexing a first subset of codes from the plurality of input codes one by one so that the first subset of codes are running in a forward direction from a head of the multiplexed code to a tail of the multiplexed code; a backward direction multiplexing means for multiplexing a second subset of input codes from the plurality of input codes one by one so that they are running in a backward direction from the tail of the multiplexed code to the head of the multiplexed code; and a selection means for selecting to assign each of the plurality of input codes to either the first or second subset of codes, wherein the plurality of input codes includes variable length encoded band-by-band codes resulting from sound encoding, the selection means selects to assign each of the plurality of input codes to either the first or second subset of codes based on the input code's sequential placement within the plurality of input codes and the number of the input codes already multiplexed.