发明授权
US07243847B2 Digital imaging-based bar code symbol reader employing an LED-based illumination subsystem driven by an automatic light exposure measurement and illumination control subsystem
失效
基于数字成像的条形码符号读取器，采用由自动曝光测量和照明控制子系统驱动的基于LED的照明子系统
- 专利标题： Digital imaging-based bar code symbol reader employing an LED-based illumination subsystem driven by an automatic light exposure measurement and illumination control subsystem
- 专利标题（中）： 基于数字成像的条形码符号读取器，采用由自动曝光测量和照明控制子系统驱动的基于LED的照明子系统
-
申请号： US10901429申请日： 2004-07-28
-
公开(公告)号： US07243847B2公开(公告)日： 2007-07-17
- 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 device comprises: an automatic object presence detection subsystem; an image formation and detection subsystem employing a CMOS area-type image sensing array; an LED-based illumination subsystem; 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-based illumination subsystem is automatically driven by the automatic light exposure measurement and control subsystem responsive to the generation of control activation signals by the image sensing array and the automatic object presence detection subsystem during object illumination and image capture operations.
信息查询
