Patent Number: 6,298,361

Title: Signal encoding and decoding system

Abstract: In band-splitting acoustic signals and subsequently encoding and decodingthe band-split signals, band-splitting and band-synthesizing processingwith high accuracy is desirable. To this end, an optimizing processoroptimizes prototype filter coefficients held on a prototype filtercoefficient holder by a window function of a tap length L'. The filtercoefficient portions of the optimized prototype filter with both endvalues equal to zero are discarded for deriving a corrected prototypefilter having a tap length L'.

Inventors: Suzuki; Shiro (Kanagawa, JP)


International Classification:

Expiration Date: 10/02/2013