Character reading apparatus

Details Character reading apparatus Character reading apparatus

1980-11-14

1983-06-21

Boudreau, Leo M.

Image analysis

Histogram processing

For setting a threshold

382 59, 382 65, G06K 922

Patent

active

043896340

ABSTRACT:
A character reading apparatus including a scanning unit manually moved along a line of characters for periodically and optically scanning the character and producing character pattern data concerning the scanned character, a memory accommodating conditional data prescribing effective character patterns and a pattern identification unit for executing identification process for a character pattern obtained from the scanning unit when the character pattern is determined to be effective, is disclosed. The character reading apparatus further includes an optimum character detection circuit, which compares the widths of character patterns represented by effective character pattern data to detect a character pattern having the greatest width and causes identification process to be executed for the character pattern data having the largest width.

REFERENCES:
patent: 3964022 (1976-06-01), Martin
patent: 4056804 (1976-09-01), Whitfield et al.
patent: 4075605 (1978-02-01), Hilley et al.
patent: 4180799 (1979-12-01), Smith
patent: 4180800 (1979-12-01), Isshiki et al.

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