Spread-time code division multiple access technique with arbitra

Details Spread-time code division multiple access technique with arbitra Spread-time code division multiple access technique with arbitra

1991-11-22

1992-12-29

Barron, Jr., Gilberto

Pulse or digital communications

Repeaters

Testing

370 18, 370 19, H04B 1402, H04B 1500, H04J 900

Patent

active

051757435

ABSTRACT:
A spread-time code division multiple access (ST-CDMA) technique is disclosed for bandlimited access to a channel. With ST-CDMA, pseudo-random (PN) sequences are assigned to each transmitter in the multi-transmitter system, and the Fourier transform of the transmitter pulse for a given transmitter is determined by modulating the phase of the desired transmitter spectrum by the PN sequence assigned to the transmitter. The data symbols produced by the transmitter are conveyed by delayed versions of the transmitter pulse. The transmitted data for a particular transmitter is recovered at a receiver synchronized to the transmitter by sampling the output of a filter matched to the corresponding transmitter pulse.

REFERENCES:
patent: 4313197 (1982-01-01), Maxemchuk
patent: 4779266 (1988-10-01), Chung et al.
patent: 5029184 (1991-07-01), Andren et al.
patent: 5068874 (1991-11-01), Leitch
"Spread Spectrum For Commercial Communications," D. L. Schilling et al., IEEE Communications Magazine., vol. 29, No. 4, pp. 66-79, Apr. 1991.
"Coherent Ultrashort Light Pulse Code-Division Multiple Access Communications Systems," J. A. Salehi et al., Journal on Lightwave Technology, vol. 8, No. 3, pp. 478-491, Mar. 1990.
"Surface Acoustic Wave Devices", L. B. Milstein et al., IEEE Communications Magazine, pp. 25-33 Sep. 1979.

Affiliated with

Also associated with

Rating

Spread-time code division multiple access technique with arbitra does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spread-time code division multiple access technique with arbitra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread-time code division multiple access technique with arbitra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1892862