Sliding-window transform with integrated windowing

Details Sliding-window transform with integrated windowing Sliding-window transform with integrated windowing

2006-03-28

2006-03-28

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Receivers

C375S350000

Reexamination Certificate

active

07020218

ABSTRACT:
A system for a sliding-window transform with integrated windowing is described. The system provides a Direct Fourier Transform kernel with an integrated windowing filter having a desired number of stages. In one embodiment, the windowing filter is a lowpass filter. In one embodiment, the lowpass filter has a rectangular filter transfer characteristic. The DFT includes a complex multiplier. A first portion of the windowing filter is provided before the complex multiplier and can be implemented using real arithmetic. A second portion of the windowing filter is provided after the complex multiplier and is implemented using complex arithmetic. In one embodiment, the filter weights of the second portion of the windowing filter are unity and thus no multiplier is needed for the filter weights in the second portion of the windowing filter.

REFERENCES:
patent: 4101834 (1978-07-01), Stutt et al.
patent: 5142287 (1992-08-01), LaBerge et al.
patent: 5488632 (1996-01-01), Mason et al.
patent: 5497398 (1996-03-01), Tzannes et al.
patent: 5610908 (1997-03-01), Shelswell et al.
patent: 5631610 (1997-05-01), Sandberg et al.
patent: 5636246 (1997-06-01), Tzannes et al.
patent: 5715280 (1998-02-01), Sandberg et al.
patent: 5727004 (1998-03-01), Propp et al.
patent: 5802044 (1998-09-01), Baum et al.
patent: 5929750 (1999-07-01), Brown
patent: 6074086 (2000-06-01), Yonge, III
patent: 6088398 (2000-07-01), Wahlqvist et al.
patent: 6091702 (2000-07-01), Saiki
patent: 6091932 (2000-07-01), Langlais
patent: 6098161 (2000-08-01), Kim
patent: 6111919 (2000-08-01), Yonge, III
patent: 6118758 (2000-09-01), Marchok et al.
patent: 6122246 (2000-09-01), Marchok et al.
patent: 6125124 (2000-09-01), Junell et al.
patent: 6249213 (2001-06-01), Horne
patent: 2002/0009064 (2002-01-01), Blessent et al.
patent: 2002/0041637 (2002-04-01), Smart et al.
patent: 0 765 059 (1997-03-01), None
patent: 0 869 646 (1998-10-01), None
patent: 0 929 172 (1999-07-01), None

Affiliated with

Also associated with

Rating

Sliding-window transform with integrated windowing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sliding-window transform with integrated windowing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sliding-window transform with integrated windowing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3590632