公开(公告)号：AT369660T

公开(公告)日：2007-08-15

申请号：AT99966539

申请日：1999-12-20

Applicant: MOTOROLA INC

Inventor： PRIETO YOLANDA ,  SUAREZ JOSE ,  PIREZ YOLANDA

IPC: H04B1/00 ,  G06F17/14 ,  H03H17/02

Abstract: A digital data system ( 100 ) provides 1-D, 2-D and 3-D capability and multi-band channel capability. Improved filter banks are created by generating a filter bank having an analysis portion and synthesis portion and obtaining wavelet coefficients ( 302 ) for each portion. The wavelet coefficients are expressed in a format capable of canonical signed digit (CSD) representation, such as integers ( 302 ). The canonical signed digit (CSD) representation is controlled by a value, N, selected to control resolution of the CSD coding. Optimized CSD-coded wavelet coefficients are used as filters for data signals ( 318 ).