System for reading an information strip containing optically coded information
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United States of America Patent
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Nov 16, 2004
Grant Date -
N/A
app pub date -
Oct 5, 2001
filing date -
Apr 8, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A reading arrangement includes at least one linear detector arrangement which is arranged in parallel relationship above a reading plane and behind an optical imaging element and is oriented on to a reading region of the reading plane, lighting devices and an evaluation unit and serves for machine reading of an information strip with optically encoded information. The light which is scattered or diffracted out of the reading region in which the information strip to be read off by machine is disposed into the optical imaging element is so projected on to the photosensitive faces of the detector arrangement that an image of the reading region is formed. The detector arrangement produces two detector signals and from a comparison of the detector signals, the read information is determined and its authenticity verified.
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