Windowed digital matched filter circuit for power reduction in b

Details Windowed digital matched filter circuit for power reduction in b Windowed digital matched filter circuit for power reduction in b

1997-03-25

2000-06-13

Chin, Stephen

Pulse or digital communications

Spread spectrum

Direct sequence

375142, 375150, 375152, 375343, 370335, 370342, 370441, 370479, H04B 1500, H04K 100, H04L 2730

Patent

active

060758074

ABSTRACT:
A digital matched filter for a CDMA radio comprises a digital delay line having a plurality of successive delay stages adapted to receive a digital signal and propagate the digital signal therethrough at a fixed rate. A correlator is coupled to the digital delay line to correlate the digital signal to a predefined spreading code to provide a correlation signal representing a degree of correlation of the digital signal to the spreading code. A window logic unit is coupled to the correlator to enable operation of the correlator only during successive discrete time periods of the correlation signal corresponding to a high degree of correlation of the digital signal to the spreading code.

REFERENCES:
patent: 3604911 (1971-09-01), Schmitt
patent: 4032885 (1977-06-01), Roth
patent: 4506386 (1985-03-01), Ichikawa et al.
patent: 4523332 (1985-06-01), Mori
patent: 4663623 (1987-05-01), Lax et al.
patent: 4736390 (1988-04-01), Ward et al.
patent: 4745408 (1988-05-01), Nagata et al.
patent: 4755983 (1988-07-01), Masak et al.
patent: 4837854 (1989-06-01), Oyagi et al.
patent: 4839639 (1989-06-01), Sato et al.
patent: 4903335 (1990-02-01), Shimizu
patent: 5216691 (1993-06-01), Kaufmann
patent: 5230084 (1993-07-01), Nguyen
patent: 5239557 (1993-08-01), Dent
patent: 5241561 (1993-08-01), Barnard
patent: 5241566 (1993-08-01), Jackson
patent: 5293398 (1994-03-01), Hamao et al.
patent: 5381133 (1995-01-01), Erhart et al.
patent: 5410734 (1995-04-01), Choi et al.
patent: 5420850 (1995-05-01), Umeda et al.
patent: 5440298 (1995-08-01), Kuramatsu
patent: 5495500 (1996-02-01), Jovanovich et al.
patent: 5537100 (1996-07-01), Hallberg
patent: 5687190 (1997-11-01), Tsao
patent: 5784403 (1998-07-01), Scott
patent: 5818868 (1998-10-01), Gaudenzi et al.
patent: 5903595 (1999-05-01), Suzuki

Affiliated with

Also associated with

Rating

Windowed digital matched filter circuit for power reduction in b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Windowed digital matched filter circuit for power reduction in b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Windowed digital matched filter circuit for power reduction in b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2075345