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US 5,262,623 AGranted
Method and apparatus for distinguishing a preferred bar code or the like
AssigneeOmniplanar, Inc.
InventorsEric P. Batterman, Donald G. Chandler
Life of this patent
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AssigneeOmniplanar, Inc.
InventorsEric P. Batterman, Donald G. Chandler
Estimating the term…
A bar code reader utilizing a two dimensional image capture optical system, includes a method and apparatus for distinguishing a preferred bar code out a plurality of bar codes within the field of view of the bar code reader. The method and apparatus for distinguishing a preferred bar code includes placing a special pattern proximate to the bar code to be distinguished. In one embodiment, a predetermined pattern at a predetermined location and orientation relative to the bar code is placed on a label. The reader includes means for detecting the presence of the predetermined pattern after the bar code has been located. The bar code reader first locates each of the plurality of bar codes, and then checks each located bar code to determine whether the predetermined pattern is present. If the predetermined pattern is detected, then the corresponding located bar code is scanned and decoded as the preferred bar code.
In a reading system for reading a machine readable symbol, said system having a reader, said reader having a field of view, a method for distinguishing one machine readable symbol from a plurality of machine readable symbols within said field of view of said reader, said method comprising:
In a reader for reading a machine readable symbol, said reader having a field of view, a method for distinguishing one machine readable symbol from a plurality of machine readable symbols within said field of view of said reader, wherein said one machine readable symbol includes a predetermined pattern proximate thereto, said method comprising:
In a reading system for reading a machine readable symbol, said system having a reader, said reader having a field of view, an apparatus for distinguishing one machine readable symbol from a plurality of machine readable symbols within said field of view of said reader, said apparatus comprising:
In a reader for reading a machine readable symbol, said reader having a field of view, an apparatus for distinguishing one machine readable symbol from a plurality of machine readable symbols within said field of view of said reader, wherein said one machine readable symbol includes a predetermined pattern proximate thereto, said apparatus comprising:
In a reader system for reading a plurality of machine readable symbols, wherein said reader system includes means for locating each of said machine readable symbols, an improvement comprising:
Dependencies are inferred from the claim text.