Spread spectrum communications system for network

Details Spread spectrum communications system for network Spread spectrum communications system for network

1995-05-22

1996-11-12

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375207, 370 852, 370 853, H04L 2730

Patent

active

055747485

ABSTRACT:
Spread spectrum chirps (i.e., wideband frequency packets) are propagated on a local area network in a hostile communications environment, such as a powerline or a crowded radio frequency band. Chirps are self-synchronizing, data bit (or subdata bit) in length and detectable by all network nodes, to allow the contention resolution and collision detection needed to support carrier-sense based network protocols. A matched filter of the same time length and encoding sequence as the transmitted chirp provides the self-synchronized chirp reception at each receiver.

REFERENCES:
patent: 3665474 (1972-05-01), Thayer
patent: 3691464 (1972-09-01), Dayton et al.
patent: 4037159 (1977-07-01), Martin
patent: 4100498 (1978-07-01), Alsup et al.
patent: 4189713 (1980-02-01), Duffy
patent: 4200862 (1980-04-01), Campbell et al.
patent: 4244053 (1981-01-01), Clinch et al.
patent: 4300235 (1981-11-01), Outram
patent: 4377754 (1983-03-01), Thompson
patent: 4409592 (1983-10-01), Hunt
patent: 4409593 (1983-10-01), Bose
patent: 4438519 (1984-03-01), Bose
patent: 4468792 (1984-08-01), Baker et al.
patent: 4517679 (1985-05-01), Clark et al.
patent: 4608559 (1986-08-01), Friedman et al.
patent: 4628440 (1986-12-01), Thompson
patent: 4638299 (1987-01-01), Campbell
patent: 4641322 (1987-02-01), Hasegawa
patent: 4649549 (1987-03-01), Halpern et al.
patent: 4651327 (1987-03-01), Fujita
patent: 4653076 (1987-03-01), Jerrim et al.
patent: 4656642 (1987-04-01), Apostolos et al.
patent: 4682324 (1987-07-01), Ulug
patent: 4691326 (1987-09-01), Tsuchiya
patent: 4703474 (1987-10-01), Foschini et al.
patent: 4707839 (1987-11-01), Andren et al.
patent: 4724435 (1988-02-01), Moses et al.
patent: 4755792 (1988-07-01), Pezzolo et al.
patent: 4763103 (1988-08-01), Galula et al.
patent: 4860307 (1989-08-01), Nakayama
patent: 4864589 (1989-09-01), Endo
patent: 4866732 (1989-09-01), Carey et al.
patent: 4866733 (1989-09-01), Morishita
patent: 4884284 (1989-11-01), Nakayama
patent: 4969159 (1990-11-01), Belcher et al.
patent: 4975926 (1990-12-01), Knapp
patent: 4984247 (1991-01-01), Kaufman et al.
patent: 5042083 (1991-08-01), Ichikawa
patent: 5132986 (1992-07-01), Endo
Piety, "Intrabuilding Data Transmission Using Power-Line Wiring, " Hewlwtt-Packard Journal, pp. 35-40 (May 1987).
Roddy et al., Electronic Communications, Reston Publishing, pp. 385-387, 703-704, 3rd Edition, No Date.
R. Dixon, Spread Spectrum Systems, John Wiley & Sons, Inc. (1984).
European Search Report dated Aug. 14, 1992, For. EP90309129.6.

Affiliated with

Also associated with

Rating

Spread spectrum communications system for network 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 spectrum communications system for network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread spectrum communications system for network will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-569171