Machine readable code combining preprinted indicia with hand-mar

Details Machine readable code combining preprinted indicia with hand-mar Machine readable code combining preprinted indicia with hand-mar

1992-07-14

1994-07-19

Willis, Davis L.

Registers

Systems controlled by data bearing records

235462, 235437, 235495, 434326, 434358, 434363, 434364, G06K 710, G06K 500, G09B 306, G09B 706

Patent

active

053311370

ABSTRACT:
A method of entering a hand-marked response into a system by altering a predetermined modified bar code symbol in a manner so that the bar code is rendered readable. In this manner, bar code reading devices can be utilized to detect the hand-marked response. In an alternative embodiment, one of several potential responses may be marked and rendered non-decodable. A bar code reading device determines which of the several responses has been hand-marked by ascertaining which is non-decodable. Marking the response sheets may be aided by using an opaque template sheet or using a pressure sensitive overlay sheet.

REFERENCES:
patent: 1883775 (1932-10-01), Finkenbinder
patent: 3089260 (1963-05-01), Gray
patent: 3408482 (1968-10-01), Busby
patent: 4728784 (1988-03-01), Stewart
patent: 4978305 (1990-12-01), Kraft
"Bar Code Method for Automatic Catalog Orders," IBM Technical Disclosure Bulletin vol. 31, No. 4, Sep. 1988, pp. 243-244 (no author).

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