Method and apparatus for programmable optical crossbar logic arr

Details Method and apparatus for programmable optical crossbar logic arr Method and apparatus for programmable optical crossbar logic arr

1989-04-07

1990-05-15

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 756

Patent

active

049263676

ABSTRACT:
Arrangements and methods for the design of a hybrid optical/electronic system that implements logic or computing functions. The system consists of a programmable hybrid optical/electronic INVERT-OR-INVERT-OR logic array that is functionally equivalent to a conventional AND-OR electronic programmable logic array (PLA) device with decoders. In the hybrid system, electronic decoders send spatially coded binary input information to a row of optical emitters. A programmable optical crossbar is then employed to perform a row by row INVERT-OR operation. Light emerging from the crossbar impinges on a column of optical detectors, and the individual detector outputs are subsequently INVERTED electronically. One or more of the resulting signals are then electronically or optically OR'd together.

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