Patent ID: 6434519
Filing Date: 2002-08-13
Classification: G10L

Abstract:
A method of partitioning the frequency spectrum of a prototype of a frame, comprising the steps of:dividing the frequency spectrum into a plurality of segments; assigning a plurality of bands to each segment; establishing, for each segment, a set of bandwidths for the plurality of bands, wherein the establishing step comprises the step of allocating variable bandwidths to the plurality of bands in a particular segment, and wherein the allocating step comprises the steps of: setting a target bandwidth; searching, for each band, an amplitude vector of the prototype to determine the maximum harmonic number in the band, excluding from the search ranges covered by any previously established band edges; positioning, for each hand, the band edges around the maximum harmonic number such that the total number of harmonics located between the band edges is equal to the target bandwidth divided by the fundamental frequency; and removing gaps between adjacent band edges.