Communications: electrical – Digital comparator systems
Patent
1971-12-30
1976-02-10
Boudreau, Leo H.
Communications: electrical
Digital comparator systems
197156, 197172, 235 6111E, 235 6112N, 250226, G06K 712
Patent
active
039380882
ABSTRACT:
Coding of a group of characters for recognition by a machine and by a human viewer is provided by coloring each character with a predetermined plurality of colors arranged in predetermined locations within a character configuration. Each character configuration in a set of characters is segregated into a plurality of sectors and each sector is coded by a predetermined one of a plurality of colors which differs from the color coding of an adjacent sector. Apparatus for forming the color-coded characters by printing and by a photoelectrophoretic process is disclosed. Apparatus for automatically recognizing characters colored according to the predetermined code comprise color detecting elements positioned in an array at a reading station for generating output electrical signals representative of the color-sector coding and circuit means coupled to the detection means for translating the color-sector signals into an electrical signal representative of a character in a set.
REFERENCES:
patent: 2947357 (1960-08-01), Bafour et al.
patent: 3225177 (1965-12-01), Stites et al.
patent: 3473027 (1969-10-01), Freeman et al.
patent: 3486006 (1969-12-01), Siegel
patent: 3555852 (1971-01-01), Stock et al.
patent: 3578136 (1971-05-01), Postal
patent: 3663801 (1972-05-01), Wahli
patent: 3786237 (1974-01-01), Postal
Boudreau Leo H.
Cannon George J.
Ralabate James J.
Shanahan Michael H.
Xerox Corporation
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