Method and apparatus for detecting and decoding bar code symbols using two-dimensional digital pixel images
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United States of America Patent
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Aug 30, 1994
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N/A
app pub date -
Aug 10, 1992
filing date -
Aug 10, 1992
priority date (Note) -
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Abstract
A system for detecting a bar code symbol receives a two-dimensional image containing the symbol, where the system has no a priori knowledge of the orientation of the symbol in the image. The system scans the image in one dimension to locate a quiet zone for the symbol and searches the image in one dimension to identify a start/stop character of the symbol.
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