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Patent Searching and Data


Title:
DIGITAL FILTER WITH STATE STORAGE
Document Type and Number:
WIPO Patent Application WO2002041490
Kind Code:
A3
Abstract:
A system for digital filtering includes a set of logic gates, a state storage, and a multiplexer. The state storage includes two or more storage banks and may also include combinatorial logic and/or at least one lookup table. In one application, a filtering operation according to a finite-impulse-response filter coefficient vector is performed without runtime multiplications. Applications to symmetric and antisymmetric filter coefficient vectors are described, as well as applications to filter coefficient vectors of arbitrary odd or even length.

Inventors:
MOHSENI JAFAR M
BUTLER BRIAN K
JOHN DEEPU
ZHANG HAITAO
Application Number:
US0147366W
Publication Date:
January 23, 2003
Filing Date:
November 03, 2001
Export Citation:
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Assignee:
QUALCOMM INCORPORATED
International Classes:
G06F17/10; H03H17/02; H03H17/06; H04L25/03; (IPC1-7): H03H17/06
Foreign References:
US5966314A1999-10-12
EP0580924A11994-02-02
EP0690566A11996-01-03
Other References:
DUNCAN P ET AL: "STRATEGIES FOR DESIGN AUTOMATION OF HIGH SPEED DIGITAL FILTERS" JOURNAL OF VLSI SIGNAL PROCESSING SYSTEMS FOR SIGNAL. IMAGE, AND VIDEO TECHNOLOGY, KLUWER ACADEMIC PUBLISHERS, DORDRECHT, NL, vol. 9, no. 1/2, 1995, pages 105-118, XP000525889 ISSN: 0922-5773
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