Optical data detecting apparatus and method

Details Optical data detecting apparatus and method Optical data detecting apparatus and method

1993-06-28

1995-03-21

Willis, Davis L.

Registers

Coded record sensors

Particular sensor structure

434358, G06K 710, G06K 714

Patent

active

053998456

ABSTRACT:
An apparatus for optically detecting data on paper or reusable plastic sheets, delivering the data directly to a computer including reflective photoelectric sensors to detect marks on the sheets. The software employed may use a multitude of methods to extract information from the data. The parallel I/O interface card between the apparatus and a computer permits data sampling of many sensors simultaneously. Many different thicknesses and reflectiveness of sheets may be used, thus permitting use of inexpensive photo copied forms. The apparatus is simplified by taking advantage of circuitry and the power source in the computer. The apparatus may be used to grade papers, tabulate votes, collect survey information, match people best suited for a job, date matching, or any other purpose in which data from marks on sheets can be used by a general or special purpose computer.

REFERENCES:
patent: 3800439 (1974-04-01), Sokolski et al.
patent: 3939327 (1976-02-01), Humphrey
patent: 3983364 (1976-09-01), Firehammer et al.
patent: 4283622 (1981-08-01), Passer et al.
patent: 5046005 (1991-09-01), Vilardebo et al.

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