首页> 外国专利> Hand-supportable multi-mode digital imaging-based bar code symbol reader employing an automatic illumination and exposure control subsystem that automatically controls the operation of a multi-mode led-based illumination subsystem so that detected objects are sufficiently illuminated and good quality digital images thereof are formed and detected

Hand-supportable multi-mode digital imaging-based bar code symbol reader employing an automatic illumination and exposure control subsystem that automatically controls the operation of a multi-mode led-based illumination subsystem so that detected objects are sufficiently illuminated and good quality digital images thereof are formed and detected

机译：手动支持的基于多模式数字成像的条形码符号读取器，采用自动照明和曝光控制子系统，该子系统自动控制基于多模式led的照明子系统的操作，以便对被检测的对象进行充分的照明，并获得其高质量的数字图像被形成并被发现

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摘要

A hand-supportable digital imaging-based bar code symbol reading device comprises: an automatic object presence detection subsystem; a multi-mode area-type image formation and detection subsystem having a field of view (FOV), and 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; an image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem. In the digital imaging-based bar code reading device of the present invention, the automatic illumination and exposure control subsystem continuously measures the light exposure incident upon a central portion of the FOV, and automatically controls the operation of the LED-based multi-mode illumination subsystem so that the detected object is sufficiently illuminated and the multi-mode image formation and detection subsystem enabled to form and detect good quality digital images of the automatically detected object during illumination and imaging operations.

机译：一种可手持的基于数字成像的条形码符号读取装置，包括：自动物体存在检测子系统;多模式区域型图像形成和检测子系统，具有视场（FOV）以及窄区域和广域图像捕获操作模式;基于多模式LED的照明子系统，具有操作的窄区域和广区域照明模式;自动曝光测量和照明控制子系统;图像捕获和缓冲子系统;图像处理条形码符号读取子系统;输入/输出子系统;和系统控制子系统。在本发明的基于数字成像的条形码读取装置中，自动照明和曝光控制子系统连续地测量入射在FOV的中央部分上的曝光量，并自动控制基于LED的多模式照明的操作。子系统使得被检测的物体被充分照明，并且多模式图像形成和检测子系统能够在照明和成像操作期间形成并检测自动检测的物体的高质量数字图像。

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公开/公告号US7216810B2

专利类型
公开/公告日2007-05-15

原文格式PDF
申请/专利权人 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;
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申请/专利号US20040895271
发明设计人 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;
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申请日2004-07-20
分类号G02B26/08;
国家 US
入库时间 2022-08-21 21:01:42

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