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Bar Code Scanner with Variable Count Frequency Disclosure Number: IPCOM000055870D
Original Publication Date: 1980-Sep-01
Included in the Prior Art Database: 2005-Feb-13

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Laurer, GJ [+details]


Bar-coded labels, such as Universal Product Code (UPC) labels, can be read by establishing the number of counts required for a scanning beam to cross each bar or space in the label. The counts are processed using known candidate selection techniques and decoding techniques to establish the numeric value of the label.