Quasi-one-dimensional focal plane array for vision scanners

Details Quasi-one-dimensional focal plane array for vision scanners Quasi-one-dimensional focal plane array for vision scanners

1993-05-10

1995-01-24

Willis, Davis L.

Registers

Coded record sensors

Particular sensor structure

235463, 235454, G06K 710

Patent

active

053844521

ABSTRACT:
A quasi one-dimensional focal plane array for vision scanners which records a portion of an image of a bar code label which is substantially less than the entire image of the bar code label. The focal plane array has more than 1000 columns of pixels and less than 100 rows of pixels for producing the image of the portion of a bar code label. Additional portions are scanned by the focal plane array as the portions move across the focal plane array. A vision scanner employing the quasi-one-dimensional focal plane array requires only enough memory to store the image of the portion of the bar code label. Each image is recorded, stored, and decoded in turn. The image of the bar code label may be demagnified. A system employing such a vision scanner is located at a distance high enough from an article conveyor to provide a substantially uniform depth of field, despite variations in the height of the articles.

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