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

1976-10-19

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

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

Patent

active

039874109

ABSTRACT:
Improved features for a fabrication arrangement that reduces the number of LSI chips required in a bit stream measurement system comprised of a plurality of measurement elements, each element including a large programmable array. The improvements are on the basic fabrication arrangement of patent application Ser. No. 482,824. The improvements relate the chip and measurement element fabrication to the detection significance of parts of the bit stream by substituting delay shift registers for array portions to handle the less significant parts of the bit stream in some measurement elements. The detection operations can then be concentrated on the more significant parts of a bit stream, such as the part representing the top, bottom, left or right portion of an optical character recognition machines bit stream represented character frame. The resulting modifications in chip and element fabrication result in a further reduction in the average number of chips required in the measurement system. The LSI array chips can be identically made.

REFERENCES:
patent: 3454310 (1969-07-01), Wilhelm, Jr.
patent: 3560927 (1971-02-01), Rabinow et al.
patent: 3573730 (1971-04-01), Andrews et al.
patent: 3619583 (1971-11-01), Arnold
patent: 3643232 (1972-02-01), Kilby
patent: 3706071 (1972-12-01), Gray
patent: 3818252 (1974-06-01), Chiba et al.
patent: 3905018 (1975-09-01), Gray

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