Parallel optical arithmetic/logic unit

Details Parallel optical arithmetic/logic unit Parallel optical arithmetic/logic unit

1987-02-27

1989-01-10

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 756

Patent

active

047978430

ABSTRACT:
A parallel optical arithmetic/logic unit has inputs from point-light sources forming a given spatial pattern corresponding to a given separation of point sources. The spatial pattern is presented to a multiplicity of channels by an optical system formed of linear optical elements. A static filter is provided in each channel which allows energy to pass when it comes from one spatial pattern but attenuates or diverts energy from all other spatial patterns. Thus, energy will emerge predominantly from only one channel for each specific spatial pattern separated by a given separation of point sources. The desired output state of each channel may be detected to indicate the results of an optical arithmetic or logic operation.

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patent: 4074361 (1978-02-01), Clow
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Szabo et al, "Residue Arithmetic and Its Applications to Computer Technology", McGraw-Hill Book Company, 1977.
Bleha et al, "Application of the Liquid Crystal Light Valve to Real-Time Optical Data Processing", Opt. Eng., 17, p. 371.
"Residue Arithmetic Techniques for Optical Processing of Adaptive Phased Array Radars", Beaudet et al, Applied Optics, 15 Sep. 1986.
NASA Conference Publication 2302, Aug. 1983, Collins et al., "Optical Information Processing for Aerospace Applications II".

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