Registers – Coded record sensors – Particular sensor structure
Patent
1995-09-25
1997-06-10
Hajec, Donald T.
Registers
Coded record sensors
Particular sensor structure
235462, G06K 710
Patent
active
056378564
ABSTRACT:
Optical scanning of one- and two-dimensional barcode symbols is carried out first in an aim mode wherein the symbol is scanned using a first scan pattern that is relatively small and dense so as to be visible to the user and thereafter using a second, larger and more robust scan pattern for decoding. During aiming, the symbol is partially decoded to determine type and orientation, and this information is applied to control the angle of the scan pattern produced, the rate at which the scan pattern is increased for optimum decoding, and the ultimate pattern size. Preferred scan patterns, as well as unique scan mechanisms, are described.
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Bridgelall Raj
Dvorkis Paul
Goren David P.
Katz Joseph
Li Yajun
Frech Karl
Hajec Donald T.
Symbol Technologies Inc.
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