Spread spectrum communication device

Details Spread spectrum communication device Spread spectrum communication device

1992-03-17

1993-06-08

Barron, Jr., Gilberto

Pulse or digital communications

Repeaters

Testing

375113, 375115, H04L 2732, H04L 706

Patent

active

052186202

ABSTRACT:
In a spread spectrum communication system for communicating data by spreading spectrum thereof, using PN codes, on the transmitter side, a first modulated output portion, which is spread-spectrum-modulated, containing no data to be transmitted and a second modulated output portion, which is spread-spectrum-modulated, following the first modulated output portion and containing data to be transmitted are generated; and the second modulated output portion is transmitted with a low electric power and the first modulated output portion with a high electric power. On the receiver side, a correlation-demodulated output is generated by correlation-demodulating a received input; and from the correlation-demodulated output consisting of a first correlation-demodulated output portion corresponding to the first modulated output portion and a second correlation-demodulated output portion corresponding to the second modulated output portion the first correlation-demodulated output portion is detected. Further timing signal serving as a reference for an operation on the receiver side is generated, starting from the first correlation-demodulated output portion.

REFERENCES:
patent: 4560984 (1985-12-01), Scholl
patent: 4860307 (1989-08-01), Nakayama
patent: 5022046 (1991-06-01), Morrow, Jr.
patent: 5048052 (1991-09-01), Hamatsu et al.
patent: 5058128 (1991-10-01), Kurihara et al.
patent: 5090023 (1992-02-01), Watanabe et al.
patent: 5093840 (1992-03-01), Schilling
patent: 5105436 (1992-04-01), Mori et al.
patent: 5128957 (1992-07-01), Nakagawa
Masaharu Mori et al., "A Method of Code Synchronization in a Spread Spectrum Receiver using a SAW Convolver", Journal of Electronic Communication Society of Japan, 86/4, vol. J69-B No. 4, pp. 403-405. (No translation).

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1947739