Pulse or digital communications – Repeaters – Testing
Patent
1997-03-19
2000-01-25
Le, Amanda T.
Pulse or digital communications
Repeaters
Testing
375347, H04K 100
Patent
active
060185457
ABSTRACT:
A plurality of chips generated by spectrum spreading from each of the bits constituting transmission information are distributed along the time axis, and transmitted. At the receiving end, the transmission information is recovered while integrating information of the chips distributed along the time axis. In a first aspect of the present invention, the transmission information is repeated multiple times, and then the resulting information is spread by a spreading code to generate the transmission data. In a second aspect of the present invention, the transmission information is first spread by a spreading code and then interleaved to generate the transmission data.
REFERENCES:
patent: 4330799 (1982-05-01), Price
patent: 4481640 (1984-11-01), Chow et al.
patent: 4518947 (1985-05-01), Poston et al.
patent: 4962507 (1990-10-01), Renshaw
patent: 5274667 (1993-12-01), Olmstead
patent: 5315615 (1994-05-01), DeLisle et al.
patent: 5315616 (1994-05-01), DeLisle et al.
patent: 5349606 (1994-09-01), Lovell et al.
patent: 5504773 (1996-04-01), Padovani et al.
patent: 5644590 (1997-07-01), Sugita
patent: 5666352 (1997-09-01), Ohgoshi et al.
patent: 5680395 (1997-10-01), Weaver, Jr. et al.
patent: 5712869 (1998-01-01), Lee et al.
Geraniotis, E. and Gluck, J.W., "Coded FH/SS Communications in the Presence of Combined Partial-Band Noise Jamming, Rician Nonselective Fading, and Multiuser Interference," IEEE Jour. On Sel. Areas In Communications, vol. SAC-5, No. 2, pp. 194-214, Feb. 1987.
Viterbi, Andrew J., "Very Low Rate Convolutional Codes for Maximum Theoretical Performance of Spread-Spectrum Multiple-Access Channels," IEEE Journal On Selected Areas In Communications, vol. 8, No. 4, May 1990, pp. 641-649.
Simon et al., "3.5--Coded Direct-Sequence Spread Binary Phase-Shift-Keying," Spread Spectrum Communications Handbook (Revised Edition), Pub. by McGraw-Hill, Inc., 1994, pp. 151-167.
Fukumasa Hidenobu
Furukawa Hideto
Nagatani Kazuo
Oishi Yasuyuki
Tajima Yoshiharu
Fujitsu Limited
Le Amanda T.
LandOfFree
Communications device employing spectrum spreading in transmitte does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Communications device employing spectrum spreading in transmitte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications device employing spectrum spreading in transmitte will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2321006