Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Patent
1998-03-30
2000-11-14
Mai, Tan V.
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
G06F 1715
Patent
active
061483133
ABSTRACT:
A programmable digital correlator device, and associated correlation method, with a very efficient structure. In one aspect, two or more correlators share a common data sequence shift register. In another aspect, the data sequence shift register is comprised of random access memory (RAM) modules which allow efficient construction in field programmable gate array (FPGA) logic devices. Two's-complement data samples are multiplied by a reference sequence to produce unfinished two's-complement products, the products are summed with unsigned arithmetic in an adder containing population counters, and a correction factor is added after all other calculations are complete to convert the unsigned result back to a two's-complement number.
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Database WPI Section EI, Week 8616 Derwent Publications Ltd., London, GB; Class T01, AN 86-105322 XP002096698 & SU 1 180 927 A (Acoustics Inst), Sep.23, 1985, see abstract.
Gray R P et al: "The MA7170 systolic correlator, architecture and applications" Applied Control, Filtering and Signal Processing. Proceedings of the Iasted International Symposium, Geneva, Switzerland, Jun. 15-18, 1987, pp. 236-240, XP002096697 ISBN 0-88986-120-X, 1987, Anaheim, CA, USA, ACTA Press, USA.
Database WPI Section EI, Week 8823 Derwent Publications Ltd., London, GB; Class T01, AN 88-160641 XP002096699 & SU 1 352 500 A (Detkov V N), NOv. 15, 1987, see abstract.
Freidin Philip Manuel
Krasner Norman Franklin
Serrone Michael John
GE Capital Spacenet Services, Inc.
Mai Tan V.
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