Intelligent power management for a programmable matched filter

Details Intelligent power management for a programmable matched filter Intelligent power management for a programmable matched filter

1998-06-04

1999-12-07

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375206, 375343, 455231, 455343, H04B 1707, H04B 116, H04L 700

Patent

active

059995629

ABSTRACT:
A intelligent power management apparatus for use with a matched-filter. A multiplexer multiplexes shifted-in-phase chips and shifted-quadrature-phase chips from an in-phase-shift register and a quadrature-phase-shift register, respectively, to generate multiplexed chips. The multiplexed chips include alternating sets of shifted-in-phase chips and shifted-quadrature-phase chips. A controller generates a POWERDOWN signal when the multiplexed chips from a received-spread-spectrum signal are unlikely to have a particular-chip sequence. The controller generates an ACTIVATION signal when the multiplexed chips are likely to have the particular-chip sequence present. An adder tree generates a CORRELATION signal when the multiplexed chips have the particular-chip sequence and match or correlate with the settings of the adder tree. A number of AND gates inhibit the multiplexed chips from passing to some or all of the adder tree when the POWERDOWN signal is present, and pass the multiplexed chips to some or all of the adder tree when the ACTIVATION signal is present.

REFERENCES:
patent: 4112372 (1978-09-01), Holmes et al.
patent: 4418393 (1983-11-01), Zscheile, Jr.
patent: 4426630 (1984-01-01), Folkmann
patent: 4507746 (1985-03-01), Fletcher, Jr.
patent: 4583048 (1986-04-01), Gumacos et al.
patent: 4630283 (1986-12-01), Schiff
patent: 4653069 (1987-03-01), Roeder
patent: 4660164 (1987-04-01), Leibowitz
patent: 4672658 (1987-06-01), Kavehrad et al.
patent: 4691326 (1987-09-01), Tsuchiya
patent: 4707839 (1987-11-01), Andren et al.
patent: 4730340 (1988-03-01), Frazier, Jr.
patent: 4755983 (1988-07-01), Masak et al.
patent: 4759034 (1988-07-01), Nagazumi
patent: 4860307 (1989-08-01), Nakayama
patent: 4903225 (1990-02-01), Brost
patent: 4912722 (1990-03-01), Carlin
patent: 4969159 (1990-11-01), Belcher et al.
patent: 5031192 (1991-07-01), Clark
patent: 5311544 (1994-05-01), Park et al.
patent: 5448507 (1995-09-01), Strawn
patent: 5568150 (1996-10-01), Taylor, Jr. et al.
patent: 5627855 (1997-05-01), Davidovici
patent: 5638362 (1997-06-01), Dohi et al.
patent: 5715276 (1998-02-01), Tran et al.
patent: 5742636 (1998-04-01), Fukushi
patent: 5764691 (1998-06-01), Hennedy et al.
patent: 5802102 (1998-09-01), Davidovici
J.H. Cafarella, W.M. Brown, E. Stern and J.A. Alusow, "Acoustoelectric Convolvers for Programmable Matched Filtering in Spread System," Proceedings of The IEEE, vol. 64, No. 5, pp. 756-759, May 1976.

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