Method and apparatus for reading one-and two-dimensional symbols

Details Method and apparatus for reading one-and two-dimensional symbols Method and apparatus for reading one-and two-dimensional symbols

1997-02-06

1999-06-15

Hajec, Donald

Registers

Coded record sensors

Particular sensor structure

23546211, G06K 710

Patent

active

059124520

ABSTRACT:
A symbology reader uses a linear detector to image a two-dimensional area by scanning the field of view of the linear detector across an image field. In one embodiment, the reader simultaneously decodes data from the linear detector according to two-dimensional techniques and linear and stacked symbology techniques. If the reader identifies a linear or stacked symbology, the two-dimensional processing is interrupted. As the reader scans the field of view of the linear detector across the image field, the scanning mirror simultaneously sweeps a light plane across the image field so that only the imaged region is illuminated, thereby improving the dynamic range of the reader.

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