发明授权
US07320431B2 Digital imaging-based bar code symbol reading system employing a multi-mode illumination subsystem with far-field and near field led-based illumination arrays
有权
基于数字成像的条形码符号读取系统采用具有远场和近场LED照明阵列的多模照明子系统
- 专利标题： Digital imaging-based bar code symbol reading system employing a multi-mode illumination subsystem with far-field and near field led-based illumination arrays
- 专利标题（中）： 基于数字成像的条形码符号读取系统采用具有远场和近场LED照明阵列的多模照明子系统
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申请号： US10901461申请日： 2004-07-28
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公开(公告)号： US07320431B2公开(公告)日： 2008-01-22
- 发明人: Xiaoxun Zhu , Yong Liu , Ka Man Au , Rui Hou , Hongpeng Yu , Xi Tao , Liang Liu , Wenhua Zhang , Anatoly Kotlarsky , Sankar Ghosh , Michael Schnee , Pasqual Spatafore , Thomas Amundsen , Sung Byun , Mark Schmidt , Garrett Russell , John Bonanno , C. Harry Knowles
- 申请人： Xiaoxun Zhu , Yong Liu , Ka Man Au , Rui Hou , Hongpeng Yu , Xi Tao , Liang Liu , Wenhua Zhang , Anatoly Kotlarsky , Sankar Ghosh , Michael Schnee , Pasqual Spatafore , Thomas Amundsen , Sung Byun , Mark Schmidt , Garrett Russell , John Bonanno , C. Harry Knowles
- 申请人地址： US NJ Blackwood
- 专利权人： Metrologic Instruments, Inc.
- 当前专利权人： Metrologic Instruments, Inc.
- 当前专利权人地址： US NJ Blackwood
- 代理商 Thomas J. Perkowski, Esq., P.C.
- 主分类号： G02B26/08
- IPC分类号： G02B26/08
摘要：
A digital imaging-based bar code symbol reading system which comprises: an automatic object presence and range detection subsystem; an image formation and detection subsystem having an area-type image sensing array with a field of view (FOV); a multi-mode LED-based illumination subsystem having LED illumination arrays for producing fields of narrow-band illumination in near and far portions of the FOV; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; an image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem for controlling the subsystems. The LED illumination arrays are automatically driven by the automatic light exposure measurement and illumination control subsystem in response to the generation of control activation signals by the automatic object presence and range detection subsystem.
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