Communications: electrical – Digital comparator systems
Patent
1976-10-04
1978-04-04
Thesz, Joseph M.
Communications: electrical
Digital comparator systems
3401463MA, G06K 900
Patent
active
040830349
ABSTRACT:
A system is provided for detecting and locating touching, overlapping and broken segment characters in a binary information stream generated by scanning printed characters on a document surface with a linear sensor array. Fixed, variable and proportional pitch characters are accommodated. As the information stream is circulated through a shift register memory, selected cells of the memory provide a center cell memory window to plural trackers. The trackers are activated on a priority basis as center cells of the memory window satisfy a start condition, and trace between center cells satisfying an adjacency condition. Tracker information is qualified to identify valid information, and the valid tracker information merged to detect and center a valid character in a memory mosaic for output to succeeding systems.
REFERENCES:
patent: 3613080 (1971-10-01), Angeloni et al.
patent: 3805237 (1974-04-01), Cobb et al.
patent: 3818445 (1974-06-01), Neville
patent: 3827025 (1974-07-01), Mauch et al.
patent: 3883848 (1975-05-01), Minck et al.
E. P. Tenpas, "Character Golation for Recognition Machines", IBM Tech. Discl. Bulletin, vol. 19, No. 1, June 1976.
Recognition Equipment Incorporated
Thesz Joseph M.
Vandigriff John E.
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