Boots – shoes – and leggings
Patent
1990-10-15
1992-05-05
Mai, Tan V.
Boots, shoes, and leggings
G06F 104
Patent
active
051114143
ABSTRACT:
Arrangement and methods for the design of a hybrid optical/electronic system that implements a truth table based noncontending N.times.M or N.times.M crossbar switch with bit-slice reconfigurability. The hybrid optical/electronic architecture for implementing the switch contains one or more sets of emitters a cross connection array with embedded logic, and one or more sets of detectors. Four basic variations of the architecture are described that effect the same basic truth table. The first variation employs direct fiber connections within the cross connection array. The second variation employs embedded programmable logic devices within the cross connection array. The third and fourth variations each employ embedded multiplexers within the cross connection array, with the fourth variation having memory elements that enable the crossbar switch to operate synchronously.
REFERENCES:
patent: 3680080 (1972-07-01), Maure
patent: 4418394 (1983-11-01), Tai
patent: 4569033 (1986-02-01), Collins et al.
patent: 4607344 (1986-08-01), Athale et al.
patent: 4620293 (1986-10-01), Schlunt et al.
patent: 4809204 (1989-02-01), Dagenais et al.
patent: 4821222 (1989-04-01), Arrathoon
Bigbie et al, "Optical Programmed Logic Array", IBM Tech. Disclosure Bulletin, vol. 20, No. 8, Jan. 1978, pp. 2960-2961.
Sawchuk et al., "Digital Optical Computing," Proceedings of the IEEE, 72, pp. 758-779 (Jul., 1984).
Sasao, "On the Optimal Design of Multiple-Valued PLA's," Proceedings of the Sixteenth International Symposium on Multiple-Valued Logic, pp. 214-223 (1984).
McAulay, "Optical Crossbar Interconnected Digital Signal Processor with Basic Algorithms," Optical Engineering, 25, pp. 82-90 (Jan. 1986).
Huang, et al., "Optical Computation Using Residue Arithmetic," Applied Optics, 18, pp. 149-162 (Jan. 1979).
Gaylord et al., "Optical Digital Truth Table Look-Up Processing," Optical Engineering, 25 pp. 48-58 (Jan. 1986).
Arrathoon et al., "Shadow Casting for Multiple-Valued Associative Logic," Optical Engineering, 25, pp. 29-37 (Jan. 1986).
Arrathoon et al., "Integrated Optical Combinatorial Logic Using Electrooptic Bragg Gratings," Proceedings of the Soc. of Photo-Optical Instrumentation Engineers, 578, pp. 207-213 (Sep. 1985).
Guilfoyle et al., "Combinatorial Logic Based Optical Computing," Proceedings of the Society of Photo-Optical Instrumentation Engineers, 639, pp. 102-110 (Apr. 1986).
Farhat and Psaltis, "Optical Implementations of the Hopfield Model," 4-page article (no date or publication given).
Sasao & Terada, "Multiple-Valued Logic & The Design of Programmable Logic Arrays With Decoders," Proceedings of the Ninth International Symposium on Multi-Valued Logic, pp. 27-37 (1979).
Psaltis & Farhat, "Optical Information Processing Based on an Associative Memory Model of Neural Nets With Thresholding and Feedback," Optics Letters, vol. 10, No. 2, pp. 98-100 (Feb. 1985).
Sawchuk et al., "Optical Crossbar Networks," IEE Computer Magazine, vol. 20, No. 6, pp. 50-60 (Jun. 1987).
Robinson, "Overview of Programmable Hardware," Byte Magazine, vol. 12, No. 1, pp. 197-203 (Jan. 1987).
Arrathoon, "Reconfigurable Fiber Optics and Generalized Crossbar Switches," Society of Photo-Optical Instrumentation Engineers, vol. 835, pp. 338-345 (Aug. 16, 1987).
LandOfFree
Method and apparatus for truth table based noncontending optical 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 truth table based noncontending optical, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for truth table based noncontending optical will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1418324