Method and device for decoding bar codes
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United States of America Patent
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Jul 27, 1999
Grant Date -
N/A
app pub date -
Nov 12, 1997
filing date -
Mar 28, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for decoding one or more bar codes comprising a plurality of marks, the marks comprise one or more spaces and one or more bars. The method comprises the following steps: digitalizing electrical signals obtained from a pick-up for picking up reflected laser beams; deriving the width of bars and spaces from the digital signals; determining one or more mark values with a degree on the basis of the width of the spaces and bars found inside the mark or in the immediate vicinity of the mark; determining one or more information values with a degree from the mark values with a degree; and selecting the most probable information values for a bar code or part of a bar code using the determined information values.
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