Bar-code reader and method of reading bar code
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United States of America Patent
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Oct 7, 2008
Grant Date -
Aug 26, 2004
app pub date -
Jan 7, 2004
filing date -
Feb 21, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A plurality of bar-code candidate areas are calculated from scan data that is acquired by scanning a bar code. Feature data, which represents a specific feature, is calculated for each of the bar-code candidate areas. The bar-code candidate areas are evaluated based on their feature data to thereby determine a bar-code candidate area that has the highest probability of being a bar code. The specific feature includes any one or more of length of a differential waveform, average energy, and number of peaks in the differential waveform.
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