Method of correcting erroneously encoded optical character recog

Details Method of correcting erroneously encoded optical character recog Method of correcting erroneously encoded optical character recog

1979-06-13

1981-02-03

Cook, Daryl W.

Registers

Records

Fluorescent, phosphorescent, radiation emitting

235468, 250271, G06K 1906, G06K 710

Patent

active

042490723

ABSTRACT:
A method for correcting erroneously encoded optical character recognition indicia through the application of a solution containing ferric chloride to the erroneously encoded indicia to effectively quench the florescense of the indicia when excited by ultraviolet light. The solution is permitted to dry and new ultraviolet excitable ink is utilized to re-encode the document over the quenched erroneously encoded indicia.

REFERENCES:
patent: 3676646 (1972-07-01), Carlsen et al.
patent: 3786237 (1974-01-01), Postal

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