Digital imaging-based bar code symbol driven portable data terminal system
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United States of America Patent
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Nov 27, 2007
Grant Date -
May 19, 2005
app pub date -
Jul 30, 2004
filing date -
Nov 13, 2003
priority date (Note) -
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Abstract
A wireless hand-supportable digital imaging-based bar code symbol reading device comprising: an automatic object presence and range detection subsystem; a multi-mode image formation and detection subsystem having narrow-area and wide area image capture modes of operation; a multi-mode LED-based illumination subsystem having narrow-area and wide area illumination modes of operation; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; a multi-mode image-processing bar code symbol reading subsystem; an input/output subsystem; a manually-actuatable trigger switch; and a system control subsystem for controlling these subsystems.
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