Method and apparatus for the correlation of sample bits of sprea

Details Method and apparatus for the correlation of sample bits of sprea Method and apparatus for the correlation of sample bits of sprea

1991-06-24

1993-10-12

Swann, Tod R.

Pulse or digital communications

Repeaters

Testing

380 34, H04K 100

Patent

active

052532682

ABSTRACT:
A spread spectrum receiver correlator for a with filters matched to transmitter chip codes are implemented in digital circuits along with a digital circuit for acquisition and tracking of the arrival times of the chip codes. The digital circuit implementations are used for the noncoherent demodulation of pulse position spread spectrum modulation signals where the pulse is a carrier modulator by a chip code and for the noncoherent demodulation of multiple chip code modulation signals where each information symbol is represented by one of several chip codes modulating a carrier.

REFERENCES:
patent: 3831013 (1974-08-01), Alsup et al.
patent: 3900721 (1975-08-01), Speiser et al.
patent: 4112372 (1978-09-01), Holmes et al.
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4238850 (1980-12-01), Vance
patent: 4247942 (1981-01-01), Hauer
patent: 4392232 (1983-07-01), Andren et al.
patent: 4418393 (1983-11-01), Zscheile, Jr.
patent: 4418425 (1983-11-01), Fennel, Jr. et al.
patent: 4425642 (1984-01-01), Moses et al.
patent: 4455651 (1984-06-01), Baran
patent: 4471164 (1984-09-01), Henry
patent: 4479226 (1984-10-01), Prabbu et al.
patent: 4512013 (1985-04-01), Nash et al.
patent: 4523311 (1985-06-01), Lee et al.
patent: 4553130 (1985-11-01), Kato
patent: 4563774 (1986-01-01), Gloge
patent: 4606039 (1986-08-01), Nicolas et al.
patent: 4612637 (1986-09-01), Davis et al.
patent: 4621365 (1986-11-01), Chiu
patent: 4647863 (1987-03-01), Skudera, Jr. et al.
patent: 4649549 (1987-03-01), Halpern et al.
patent: 4653069 (1987-03-01), Roeder
patent: 4660164 (1987-04-01), Leibowitz
patent: 4672605 (1987-06-01), Hustig et al.
patent: 4672629 (1987-06-01), Beier
patent: 4672658 (1987-06-01), Kavehrad et al.
patent: 4675839 (1987-06-01), Kerr
patent: 4680785 (1987-07-01), Akiyama et al.
patent: 4691326 (1987-09-01), Tsuchiya
patent: 4697260 (1987-09-01), Grauel et al.
patent: 4703474 (1987-10-01), Foschini et al.
patent: 4707839 (1987-11-01), Andren et al.
patent: 4718080 (1988-01-01), Serrano et al.
patent: 4730340 (1988-03-01), Frazier, Jr.
patent: 4742512 (1988-05-01), Akashi et al.
patent: 4757495 (1988-07-01), Decker et al.
patent: 4759034 (1988-07-01), Nagazumi
patent: 4789983 (1988-12-01), Acampora et al.
patent: 4799253 (1989-01-01), Stern et al.
patent: 4805208 (1989-02-01), Schwartz
patent: 4807222 (1989-02-01), Amitay
patent: 4837802 (1989-06-01), Higashiyama et al.
patent: 4843350 (1989-06-01), Nazarathy et al.
patent: 4843586 (1989-06-01), Nazarathy et al.
patent: 4850036 (1989-07-01), Smith
patent: 4860307 (1989-08-01), Nakayama
patent: 4866732 (1989-09-01), Carey et al.
patent: 4894842 (1990-01-01), Broekhoven et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4914651 (1990-04-01), Lusignan
patent: 4922506 (1990-05-01), McCallister et al.
patent: 4930140 (1990-05-01), Cripps et al.
patent: 4932037 (1990-06-01), Simpson et al.
patent: 4969159 (1990-11-01), Belcher et al.
patent: 4977577 (1990-12-01), Arthur et al.
patent: 4977578 (1990-12-01), Ishigaki et al.
patent: 5005169 (1991-04-01), Bronder et al.
patent: 5016255 (1991-05-01), Dixon et al.
patent: 5016256 (1991-05-01), Stewart
patent: 5022047 (1991-06-01), Dixon et al.
patent: 5023887 (1991-06-01), Takeuchi et al.
patent: 5029181 (1991-07-01), Endo et al.
patent: 5040238 (1991-08-01), Comboe et al.
patent: 5048052 (1991-09-01), Hamatsu et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5081642 (1992-01-01), O'Clock, Jr. et al.
M. K. Simon, J. K. Omura, R. A. Scholtz and B. K. Levitt, Spread Spectrum Communications, vol. 1, pp. 1-39, Rockville, Md.: Computer Science Press, 1985.
M. K. Simon, J. K. Omura, R. A. Scholtz and B. K. Levitt, Spread Spectrum Communications, vol. 3, pp. 346-407, Rockville, Md.: Computer Science Press, 1985.
R. A. Scholtz, "The Origins of Spread-Spectrum Communications", IEEE Trans. Commun., COM-30, No. 5, pp. 822-854, May 1982.
R. L. Pickholtz, D. L. Schilling and L. B. Milstein, "Theory of Spread-Spectrum Communications-A Tutorial", IEEE Trans. Commun., COM-30, No. 5, pp. 855-884, May 1982.
R. A. Scholtz, "Notes on Spread-Spectrum History", IEEE Trans. Commun., COM-31, No. 1, pp. 82-84, Jan. 1983.
R. Price, "Further Notes and Anecdotes on Spread-Spectrum Origins", IEEE Trans. Commun., COM-31, No. 1, pp. 85-97, Jan. 1983.
M. Kavehrad, "Performance of Nondiversity Receivers for Spread Spectrum in Indoor Wireless Communications", AT&T Technical J., vol. 64, No. 6, pp. 1181-1210, Jul.-Aug. 1985.
M. Kavehrad and P. J. McLane, "Spread Spectrum for Indoor Digital Radio", IEEE Commun. Mag., vol. 25, No. 6, pp. 32-40, Jun. 1987.
M. Kavehrad and G. E. Bodeep, "Design and Experimental Results for a Direct-Sequence Spread-Spectrum Radio Using Differential Phase-Shift Keying Modulation for Indoor Wireless Communications", IEEE Trans. Commun., SAC-5, No. 5, pp. 815-823, Jun. 1987.

Affiliated with

Also associated with

Rating

Method and apparatus for the correlation of sample bits of sprea does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for the correlation of sample bits of sprea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for the correlation of sample bits of sprea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1911781