Adaptive reference pattern for spread spectrum detection claims

Details Adaptive reference pattern for spread spectrum detection claims Adaptive reference pattern for spread spectrum detection claims

1998-02-02

2000-08-22

Pham, Chi H.

Pulse or digital communications

Spread spectrum

Direct sequence

375149, 375145, 370206, A61F 206, H04L 2730

Patent

active

061083682

ABSTRACT:
A receiver for detecting spread spectrum binary data particularly on a power line in the presence of channel distortion. In one embodiment a standard pattern ideally suited for minimal distortion in the channel is used in conjunction with an alternate pattern which is developed to better detect carrier and data in the presence of certain channel distortion. The receiver switches between the standard and alternate pattern to provide improved detection. In another embodiment an adaptive pattern is used which is developed from the receive signal. For instance, the signal over several bit times is averaged to provide a pattern which is correlated with a receive signal.

REFERENCES:
patent: 4550414 (1985-10-01), Guinon et al.
patent: 4922506 (1990-05-01), McCallister et al.
patent: 4930140 (1990-05-01), Cripps et al.
patent: 4979183 (1990-12-01), Cowart
patent: 5022047 (1991-06-01), Dixon et al.
patent: 5077753 (1991-12-01), Grau, Jr. et al.
patent: 5081645 (1992-01-01), Resnikoff et al.
patent: 5090024 (1992-02-01), VanderMey et al.
patent: 5093841 (1992-03-01), Vancraeynest
patent: 5105435 (1992-04-01), Stilwell
patent: 5195098 (1993-03-01), Johnson et al.
patent: 5228055 (1993-07-01), Uchida et al.
patent: 5263050 (1993-11-01), Sutterlin et al.
patent: 5278862 (1994-01-01), VanderMey et al.
patent: 5289498 (1994-02-01), Hurlbut et al.
patent: 5359625 (1994-10-01), VanderMey et al.
patent: 5396515 (1995-03-01), Dixon et al.
patent: 5461629 (1995-10-01), Sutterlin et al.
patent: 5471507 (1995-11-01), Awata et al.
patent: 5521937 (1996-05-01), Kondo et al.
patent: 5579335 (1996-11-01), Sutterlin et al.
patent: 5663956 (1997-09-01), Schilling
patent: 5936997 (1999-08-01), Kanda
patent: 5943361 (1999-08-01), Gilhousen et al.
patent: 5982825 (1999-11-01), Tsujimoto

Affiliated with

Also associated with

Rating

Adaptive reference pattern for spread spectrum detection claims does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adaptive reference pattern for spread spectrum detection claims, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive reference pattern for spread spectrum detection claims will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-589629