Registers – Coded record sensors – Particular sensor structure
Patent
1994-10-25
1996-08-13
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235463, G06K 710
Patent
active
055458874
ABSTRACT:
A bar code reader decodes a bar code symbol in a pixel image by transforming the data corresponding to the symbol along a first scan line, where the transformation comprises rotation and stretching. The reader generates a composite vector and a count vector from the transformed data. The reader then transforms (by rotating and stretching) another set of data corresponding to the symbol along a second scan line. The reader updates the composite and count vectors using the second set of transformed data. The reader then generates a one-dimensional composite signal from the composite and count vectors. The reader decodes the symbol by decoding the composite signal.
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Smith Christopher E.
Timothy Earle
Filipek Jeffrey R.
Hajec Donald T.
Mendelsohn Steve
Murray William H.
United Parcel Service of America Inc.
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