Array logic fabrication for use in pattern recognition equipment

Details Array logic fabrication for use in pattern recognition equipment Array logic fabrication for use in pattern recognition equipment

1974-06-24

1976-11-02

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

307203, 307207, 307213, 3401463T, G06K 906, H03K 1908

Patent

active

039900452

ABSTRACT:
A fabrication arrangement using plural LSI chips to make a bit stream detection system requiring a programmable logic array which is too large to fit on a single LSI chip. Due to the small number of input/output pins available on any LSI chip, the fabrication arrangement divides among the chips an input shift register, the array, and array input latches. Each LSI chip also has time-multiplexed array outputs and time-multiplexed feedback inputs that minimize the pins and enable interconnection among the array section outputs on the chips so that they combine into the single large array required by the detection system. These LSI chips can be identically fabricated.

REFERENCES:
patent: 3454310 (1969-07-01), Wilhelm, Jr.
patent: 3619583 (1971-11-01), Arnold
patent: 3643232 (1972-02-01), Kilby
patent: 3818252 (1974-06-01), Chiba et al.
patent: 3849638 (1974-11-01), Greer
patent: 3905018 (1975-09-01), Gray

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