Pulse or digital communications – Repeaters – Testing
Patent
1992-10-16
1994-01-18
Barron, Jr., Gilberto
Pulse or digital communications
Repeaters
Testing
H04L 2726
Patent
active
052804992
ABSTRACT:
A spread spectrum communication system includes a transmitter having: a data generator for generating a data signal; a pn generator for generating a first pn signal in accordance with a pn code clock; a modulator for modulating the pn code clock by synchronizing the data signal with a multiple N of one period of the first pn signal; a first part for detecting one period of the first pn signal; a second part for outputting a clock to the data generator in accordance with a converted period equal to a multiple N of the detected period; and an output part for transmitting a signal at an output of the pn generator, and a receiver which receives the transmitted signal, the receiver having: a second pn generator for generating a second pn signal in synchronism with the transmitted signal; a demodulator for demodulating the transmitted signal with the second pn signal; a third part for detecting one period of the second pn signal; a fourth part for outputting a timing signal in accordance with a converted period equal to a multiple N of the detected period; and a discriminator for detecting each bit of a demodulated signal in synchronism with the timing signal.
REFERENCES:
patent: 4639932 (1987-01-01), Schiff
patent: 5121407 (1992-06-01), Partyka et al.
patent: 5128957 (1992-07-01), Nakagawa
patent: 5140610 (1992-08-01), Holliday et al.
patent: 5150377 (1992-09-01), Vannucci
"Spread Spectrum Systems" by R. C. Dixon, John Wiley & Sons, 1976, pp. 116-117.
Barron Jr. Gilberto
Ricoh & Company, Ltd.
LandOfFree
Spread spectrum communication system 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 system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread spectrum communication system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1141342