公开(公告)号：US07934659B2

公开(公告)日：2011-05-03

申请号：US11543266

申请日：2006-10-04

申请人： Mark Schmidt ,  Garrett K. Russell ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

发明人： Mark Schmidt ,  Garrett K. Russell ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

IPC分类号： G06K7/10

CPC分类号： G06K7/10881 ,  G06K17/0022

摘要： The wireless PDT of the present invention employs a “display-on bottom” design which places the unit perfectly centered in the hand of the operator, allowing for the best possible viewing as well as providing comfortable single-handed operation. The high-resolution LCD display allows the PCT to show sharp, clear bitmap images while supporting all Windows-recognized font types and sizes. With the auto back-lit feature, the brightness adjusts automatically making the screen easy to read in all light conditions. The PDT is designed for support within the download/charger cradle of a base station which interfaces with a host system using either USB or RS232 interface. Two standard ‘AA’ or rechargeable Li-Ion batteries provide more than 100 hours of operation. In addition, the PDT comes standard with 2 MB of RAM providing enough memory to store over 100,000 records. Applications for the PDT can be developed using a novel integrated development and deployment environment (IDE) which contains an easy-to-use Windows-based application generator and download utilities. For advanced programming, developers can choose to write software using an advanced application generator or ‘C’ programming application generator which provides the developer with simple programming and fast setup. Further enhancements available in the application generator include drag and drop icons, time/datestamp, battery level indicator and variable fonts, giving the developer the ability to create custom screen layouts.

摘要翻译： 本发明的无线PDT采用“底部显示”设计，其将单元完美地置于操作者的手中，从而可以最好地观看以及提供舒适的单手操作。 高分辨率LCD显示屏允许PCT显示清晰，清晰的位图图像，同时支持所有Windows识别的字体类型和尺寸。 使用自动背光功能，亮度自动调节，使屏幕在所有光线条件下都易于阅读。 PDT设计用于在使用USB或RS232接口与主机系统连接的基站的下载/充电器支架中进行支持。 两个标准“AA”或可充电锂离子电池提供超过100小时的操作。 此外，PDT标配2 MB内存，提供足够的内存来存储超过100,000条记录。 可以使用新颖的集成开发和部署环境（IDE）开发PDT的应用程序，该环境包含易于使用的基于Windows的应用程序生成器和下载实用程序。 对于高级编程，开发人员可以选择使用高级应用程序生成器或“C”编程应用程序生成器编写软件，为开发人员提供简单的编程和快速设置。 应用程序生成器中的进一步增强功能包括拖放图标，时间/日期戳，电池电量指示器和可变字体，使开发人员能够创建自定义屏幕布局。

公开(公告)号：US07121468B2

公开(公告)日：2006-10-17

申请号：US10758603

申请日：2004-01-15

申请人： Mark Schmidt ,  Garrett K. Russell ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

发明人： Mark Schmidt ,  Garrett K. Russell ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

IPC分类号： G06K7/10

CPC分类号： G06K7/10881 ,  G06K17/0022

摘要： A method of developing an application program for running on a wireless portable data terminal (PDT), comprising the steps of (a) during the development of an application program for running on a wireless PDT supported by a first operating system, generating user input and documents using development programs running on a developer computer system supported by a second operating system; (b) developing the application program on the developer computer system into a final application program expressed in the form of binary executable code designed for execution on the first operating system loaded onto the wireless PDT; (c) downloading the binary executable code of the final application program onto the wireless PDT; and (d) running the final application program in binary executable code upon the first operating system loaded onto the wireless PDT.

摘要翻译： 一种开发用于在无线便携式数据终端（PDT）上运行的应用程序的方法，包括以下步骤：（a）在开发用于在由第一操作系统支持的无线PDT上运行的应用程序，生成用户输入和 使用在由第二操作系统支持的开发者计算机系统上运行的开发程序的文档; （b）将开发者计算机系统上的应用程序开发成最终应用程序，该程序以设计用于在加载到无线PDT上的第一操作系统上执行的二进制可执行代码形式表示; （c）将最终应用程序的二进制可执行代码下载到无线PDT上; 以及（d）在加载到无线PDT上的第一操作系统上以二进制可执行代码运行最终应用程序。

公开(公告)号：US06976626B2

公开(公告)日：2005-12-20

申请号：US10342441

申请日：2003-01-12

申请人： Mark Schmidt ,  Garrett K. Russell ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

发明人： Mark Schmidt ,  Garrett K. Russell ,  C. Harry Knowles ,  Xiaoxun Zhu ,  Ka Man Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

IPC分类号： G06K5/00 ,  G06K7/10 ,  G06K9/22 ,  G06K19/06 ,  H04N20060101

CPC分类号： G06K7/10881 ,  G06K17/0022

摘要： The wireless PDT of the present invention employs a “display-on bottom” design which places the unit perfectly centered in the hand of the operator, allowing for the best possible viewing as well as providing comfortable single-handed operation. The high-resolution LCD display allows the PCT to show sharp, clear bitmap images while supporting all Windows-recognized font types and sizes. With the auto back-lit feature, the brightness adjusts automatically making the screen easy to read in all light conditions. The PDT is designed for support within the download/charger cradle of a base station which interfaces with a host system using either USB or RS232 interface. Two standard ‘AA’ or rechargeable Li-Ion batteries provide more than 100 hours of operation. In addition, the PDT comes standard with 2 MB of RAM providing enough memory to store over 100,000 records. Applications for the PDT can be developed using a novel integrated development and deployment environment (IDE) which contains an easy-to-use Windows-based application generator and download utilities. For advanced programming, developers can choose to write software using an advanced application generator or ‘C’ programming application generator which provides the developer with simple programming and fast setup. Further enhancements available in the application generator include drag and drop icons, time/datestamp, battery level indicator and variable fonts, giving the developer the ability to create custom screen layouts.

摘要翻译： 本发明的无线PDT采用“底部显示”设计，其将单元完美地置于操作者的手中，从而可以最好地观看以及提供舒适的单手操作。 高分辨率LCD显示屏允许PCT显示清晰，清晰的位图图像，同时支持所有Windows识别的字体类型和尺寸。 使用自动背光功能，亮度自动调节，使屏幕在所有光线条件下都易于阅读。 PDT设计用于在使用USB或RS232接口与主机系统连接的基站的下载/充电器支架中进行支持。 两个标准“AA”或可充电锂离子电池提供超过100小时的操作。 此外，PDT标配2 MB内存，提供足够的内存来存储超过100,000条记录。 可以使用新颖的集成开发和部署环境（IDE）开发PDT的应用程序，该环境包含易于使用的基于Windows的应用程序生成器和下载实用程序。 对于高级编程，开发人员可以选择使用高级应用程序生成器或“C”编程应用程序生成器编写软件，为开发人员提供简单的编程和快速设置。 应用程序生成器中的进一步增强功能包括拖放图标，时间/日期戳，电池电量指示器和可变字体，使开发人员能够创建自定义屏幕布局。

公开(公告)号：US20070090192A1

公开(公告)日：2007-04-26

申请号：US11543266

申请日：2006-10-04

申请人： Mark Schmidt ,  Garrett Russell ,  C. Knowles ,  Xiaoxun Zhu ,  Ka Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

发明人： Mark Schmidt ,  Garrett Russell ,  C. Knowles ,  Xiaoxun Zhu ,  Ka Au ,  Congwei Xu ,  Liang Liu ,  Kai Ji ,  Wuqing Zhang

IPC分类号： G06K7/10

CPC分类号： G06K7/10881 ,  G06K17/0022

摘要： The wireless PDT of the present invention employs a “display-on bottom” design which places the unit perfectly centered in the hand of the operator, allowing for the best possible viewing as well as providing comfortable single-handed operation. The high-resolution LCD display allows the PCT to show sharp, clear bitmap images while supporting all Windows-recognized font types and sizes. With the auto back-lit feature, the brightness adjusts automatically making the screen easy to read in all light conditions. The PDT is designed for support within the download/charger cradle of a base station which interfaces with a host system using either USB or RS232 interface. Two standard ‘AA’ or rechargeable Li-Ion batteries provide more than 100 hours of operation. In addition, the PDT comes standard with 2MB of RAM providing enough memory to store over 100,000 records. Applications for the PDT can be developed using a novel integrated development and deployment environment (IDE) which contains an easy-to-use Windows-based application generator and download utilities. For advanced programming, developers can choose to write software using an advanced application generator or ‘C’ programming application generator which provides the developer with simple programming and fast setup. Further enhancements available in the application generator include drag and drop icons, time/datestamp, battery level indicator and variable fonts, giving the developer the ability to create custom screen layouts.

摘要翻译： 本发明的无线PDT采用“底部显示”设计，其将单元完美地置于操作者的手中，从而可以最好地观看以及提供舒适的单手操作。 高分辨率LCD显示屏允许PCT显示清晰，清晰的位图图像，同时支持所有Windows识别的字体类型和尺寸。 使用自动背光功能，亮度自动调节，使屏幕在所有光线条件下都易于阅读。 PDT设计用于在使用USB或RS232接口与主机系统连接的基站的下载/充电器支架中进行支持。 两个标准“AA”或可充电锂离子电池提供超过100小时的操作。 此外，PDT标配2MB内存，提供足够的内存来存储超过100,000条记录。 可以使用新颖的集成开发和部署环境（IDE）开发PDT的应用程序，该环境包含易于使用的基于Windows的应用程序生成器和下载实用程序。 对于高级编程，开发人员可以选择使用高级应用程序生成器或“C”编程应用程序生成器编写软件，为开发人员提供简单的编程和快速设置。 应用程序生成器中的进一步增强功能包括拖放图标，时间/日期戳，电池电量指示器和可变字体，使开发人员能够创建自定义屏幕布局。

公开(公告)号：US07299986B2

公开(公告)日：2007-11-27

申请号：US10909255

申请日：2004-07-30

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

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

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/10732 ,  G06K7/10881

摘要： 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.

摘要翻译： 一种基于无线手持式数字成像的条形码符号读取装置，包括：自动对象存在和范围检测子系统; 具有窄区域和广域图像捕捉模式的多模式图像形成和检测子系统; 具有窄区域和广域照明操作模式的多模式的基于LED的照明子系统; 自动曝光测量和照明控制子系统; 图像捕获和缓冲子系统; 多模式图像处理条码符号读取子系统; 输入/输出子系统; 手动触发开关; 以及用于控制这些子系统的系统控制子系统。

公开(公告)号：US07293714B2

公开(公告)日：2007-11-13

申请号：US10901428

申请日：2004-07-28

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

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

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/10732 ,  G06K7/10881

摘要： A hand-supportable digital imaging-based bar code symbol reading system comprises: an automatic object presence detection subsystem; an image formation and detection subsystem having an area-type image sensing array with a field of view (FOV); a LED-based illumination subsystem having an LED illumination array for producing a field of narrow-band illumination within 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 image-processing bar code symbol reading subsystem has a mode of image processing, wherein a captured digital image is automatically processed along a set of parallel virtual scan lines spaced-apart by a number of pixel-offset distances proportional to the maximum pixel height of the region of interest (ROI) in the captured digital image containing a bar code symbol.

摘要翻译： 一种基于手持式数字成像的条形码符号读取系统，包括：自动对象存在检测子系统; 具有具有视场（FOV）的区域型图像感测阵列的图像形成和检测子系统; 具有用于在FOV内产生窄带照明领域的LED照明阵列的基于LED的照明子系统; 自动曝光测量和照明控制子系统; 图像捕获和缓冲子系统; 图像处理条码符号读取子系统; 输入/输出子系统; 以及用于控制子系统的系统控制子系统。 图像处理条形码符号读取子系统具有图像处理的模式，其中捕获的数字图像沿着一组平行的虚拟扫描线被自动处理，所述一组并行虚拟扫描线间隔开与像素偏移距离成比例的多个像素偏移距离 捕获的数字图像中的感兴趣区域（ROI）包含条形码符号。

公开(公告)号：US07284705B2

公开(公告)日：2007-10-23

申请号：US10909270

申请日：2004-07-30

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

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

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/10732 ,  G06K7/10881

摘要： A hand-supportable semi-automatic digital imaging-based bar code symbol reading system comprises: an automatic object presence 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 the subsystems. The digital imaging-based bar code reading system employs a three-tier modular software architecture for carrying out its image-processing based bar code symbol reading operations. The three-tier software architecture comprises an application layer, a system core layer, and an operating system (OS) layer.

摘要翻译： 一种支持手持式半自动数字成像的条形码符号读取系统，包括：自动对象存在检测子系统; 具有窄区域和广域图像捕捉模式的多模式图像形成和检测子系统; 具有窄区域和广域照明操作模式的多模式的基于LED的照明子系统; 自动曝光测量和照明控制子系统; 图像捕获和缓冲子系统; 多模式图像处理条码符号读取子系统; 输入/输出子系统; 手动触发开关; 以及用于控制子系统的系统控制子系统。 基于数字成像的条形码读取系统采用三层模块化软件架构来进行基于图像处理的条形码符号读取操作。 三层软件架构包括应用层，系统核心层和操作系统（OS）层。

公开(公告)号：US07267282B2

公开(公告)日：2007-09-11

申请号：US10901427

申请日：2004-07-28

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

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

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/10732 ,  G06K7/10881

摘要： A hand-supportable digital imaging-based bar code symbol reader comprises: an automatic object presence detection subsystem; an image formation and detection subsystem employing a CMOS area-type image detection array; an LED-based illumination subsystem employing an LED illumination array to generate a field of narrow-band LED-based illumination within the FOV; an automatic light exposure measurement and illumination control subsystem employing LED illumination driver circuitry; 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 automatic light exposure measurement and illumination control subsystem controls the LED illumination driver circuitry to expose the automatically detected object, to a field of narrow-band LED-based illumination only when substantially all rows of pixels in the CMOS image sensing array are in a state of integration, thereby enabling the image capturing and buffering subsystem to capture high quality digital images independent of the relative motion between the bar code symbol reader and the object.

摘要翻译： 一种支持手持数字成像的条形码符号读取器包括：自动对象存在检测子系统; 采用CMOS区域型图像检测阵列的图像形成和检测子系统; 采用LED照明阵列的基于LED的照明子系统在FOV内产生基于窄带LED的照明领域; 采用LED照明驱动电路的自动曝光测量和照明控制子系统; 图像捕获和缓冲子系统; 图像处理条码符号读取子系统; 输入/输出子系统; 以及用于控制子系统的系统控制子系统。 自动曝光测量和照明控制子系统控制LED照明驱动器电路，以将自动检测的对象暴露于基于窄带LED的照明领域，只有当CMOS图像感测阵列中的大部分像素行处于状态 从而使得图像捕获和缓冲子系统能够独立于条形码符号读取器和对象之间的相对运动来捕获高质量的数字图像。

公开(公告)号：US07604175B2

公开(公告)日：2009-10-20

申请号：US11801747

申请日：2007-05-10

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

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

IPC分类号： G06K7/10

CPC分类号： G06K7/10851 ,  G06K7/10732 ,  G06K7/10881

摘要： A method of reading bar code symbols using a digital-imaging based code symbol reading system employing an event-driven multi-tier modular software architecture and supporting automatic operating system login and loading of a bar code symbol reading application.

摘要翻译： 一种使用基于数字成像的代码符号读取系统来读取条形码符号的方法，该系统采用事件驱动的多层模块化软件架构并支持自动操作系统登录和加载条形码符号读取应用。

公开(公告)号：US07490774B2

公开(公告)日：2009-02-17

申请号：US10989220

申请日：2004-11-15

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

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

IPC分类号： G02B26/00

CPC分类号： G06F9/44526 ,  G06K7/10712 ,  G06K7/10732 ,  G06K7/10831 ,  G06K7/10851 ,  G06K7/10881 ,  G06K7/14 ,  G06K2207/1012

摘要： A hand-supportable digital imaging-based bar code symbol reading device comprises: an IR-based object presence and range detection subsystem; a area-type image formation and detection subsystem having an image capture modes of operation; a multi-mode led-based illumination subsystem for providing a narrow-band field of illumination; an automatic light exposure measurement and illumination control subsystem; an image capturing and buffering subsystem; a image-processing bar code symbol reading subsystem; an input/output subsystem; and a system control subsystem integrated with each of the above-described subsystems. The automatic light exposure measurement and illumination control subsystem has a light collecting element and a photodiode arranged within the hand-supportable housing, wherein incident illumination is collected from the predetermined portion of the FOV using the light collecting element, and then focused upon the photodiode for detection of the intensity of incident illumination and subsequent processing by the automatic light exposure measurement and illumination control subsystem.

摘要翻译： 一种基于手持式数字成像的条形码符号读取装置，包括：基于IR的对象存在和范围检测子系统; 具有图像拍摄模式的区域型图像形成和检测子系统; 用于提供窄带场照明的多模式LED基照明子系统; 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; 以及与上述每个子系统集成的系统控制子系统。 自动曝光测量和照明控制子系统具有布置在手持式外壳内的光收集元件和光电二极管，其中使用光收集元件从FOV的预定部分收集入射照明，然后聚焦在光电二极管上 通过自动曝光测量和照明控制子系统检测入射照明强度和后续处理。