Method and apparatus for verifying indicia correctly provided on

Details Method and apparatus for verifying indicia correctly provided on Method and apparatus for verifying indicia correctly provided on

1987-09-18

1990-02-13

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

235462, G06K 710

Patent

active

049009419

ABSTRACT:
A technique for verifying that indicia, such as print indicia, are provided at the correct location(s) on an object. Relative movement between the object and a sensor is provided. If sensed indicia are located at an expected position on the object, an indicia-bearing object is vertified. One or more samples of a proper object are scanned to establish a template which defines those locations at which indicia on the samples are located. This template is used subsequently to verify the presence of proper indicia-bearing objects.

REFERENCES:
patent: 3757942 (1973-09-01), Gunn
patent: 3935429 (1976-01-01), Branecky et al.
patent: 4034341 (1977-07-01), Ison et al.
patent: 4158835 (1979-06-01), Muira et al.
patent: 4347936 (1982-09-01), Fasig
patent: 4607137 (1986-08-01), Jansen
patent: 4608629 (1986-08-01), Nagel

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