Optical reader having improved scanning-decoding features
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United States of America Patent
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Aug 3, 1999
Issued Date -
N/A
app pub date -
Sep 3, 1996
filing date -
Mar 4, 1994
priority date (Note) -
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Abstract
An optical reading apparatus for scanning and decoding data encoded in any of a plurality of types of 1D and 2D bar code symbols. A scanner generates successive blocks of scan data for storage in a scan memory. The scan memory stores at least one complete block of scan data in one address space thereof while a more current block of scan data is being stored in another address space thereof. A processor selects and decodes blocks of scan data in accordance with a selectable one of a plurality of scanning-decoding relationships, at least one of which is a tracking relationship.
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