Arrangement for determining the optimum scan angle for printed d

Details Arrangement for determining the optimum scan angle for printed d Arrangement for determining the optimum scan angle for printed d

1980-06-02

1982-07-06

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

250557, 250561, 356400, 356152, G06K 932

Patent

active

043385885

ABSTRACT:
A sensor, having a plurality of parallel elongated light transducers, is rotated relative to a document to be aligned with a predetermined reference. A signal accumulated from the transducers reaches a distinct maximum when printed lines on the document are aligned with the elongated transducers. Detection of this maximum enables measurement of the angle by which the document is out of alignment.

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