Hardware sharing in tree-structure QMF banks

Author

Lee, Hwan-Rei ; Jen, Cliein-Wei

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

1994

fDate

5-8 Dec 1994

Firstpage

85

Lastpage

90

Abstract

In this paper, a hardware sharing method for multirate systems is presented. Using the proposed method, we successfully designed the architecture of a tree-structured quadrature mirror filter (QMF) bank, which can also be used to implement discrete wavelet transforms. The features of the resulted shared architectures are that they keep the same topology of the original non-shared one and requires less power for delay registers. Moreover, 100% utilization can also be achieved, if the input rate of the system is not required to be constant. Several techniques are used in the sharing method. The techniques include a parallel register duplication scheme, switch timing mapping and interconnection arrangement

Keywords

computer architecture; multiprocessing systems; quadrature mirror filters; transforms; wavelet transforms; architecture; delay registers; discrete wavelet transforms; hardware sharing; interconnection arrangement; multirate system; parallel register duplication; quadrature mirror filter; switch timing mapping; tree-structure QMF banks; Delay; Design methodology; Discrete wavelet transforms; Filter bank; Hardware; Mirrors; Power system interconnection; Switches; Timing; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1994. APCCAS '94., 1994 IEEE Asia-Pacific Conference on

Conference_Location

Taipei

Print_ISBN

0-7803-2440-4

Type

conf

DOI

10.1109/APCCAS.1994.514529

Filename

514529