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    Laser power control arrangements in electro-optical readers
    4.
    发明申请
    Laser power control arrangements in electro-optical readers 有权
    电光读取器中的激光功率控制装置

    公开(公告)号：US20070133633A1

    公开(公告)日：2007-06-14

    申请号：US11239745

    申请日：2005-09-30

    申请人： Costanzo Difazio ,  Vladimir Gurevich ,  James Giebel ,  Gary Schneider ,  Matthew Blasczak ,  Mark Weitzner ,  Edward Barkan

    发明人： Costanzo Difazio ,  Vladimir Gurevich ,  James Giebel ,  Gary Schneider ,  Matthew Blasczak ,  Mark Weitzner ,  Edward Barkan

    IPC分类号： H01S3/13 ,  H01S3/00

    CPC分类号： H01S5/0014 ,  G06K7/10851 ,  H01S5/0617 ,  H01S5/06808 ,  H01S5/06825 ,  H01S5/0683

    摘要： Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of an over-power condition not conforming to preestablished regulatory standards. In one embodiment, during an operational mode, a difference between laser drive currents at two operating points is compared to a difference between laser drive currents at the same two operating points during a calibration mode. The over-power condition is recognized when the difference during the operational mode exceeds the difference during the calibration mode by a predetermined amount. In another embodiment, the laser is only energized to emit the beam at a reduced power level well below regulatory standards for staring at even if a motor drive failed.

    摘要翻译： 激光功率控制装置在检测到不符合预先制定的监管标准的过功率状况时，会中断电光读取器中使用的激光的电源。 在一个实施例中，在操作模式期间，将两个操作点处的激光驱动电流之间的差与在校准模式期间相同的两个操作点处的激光驱动电流之间的差异进行比较。 当在操作模式期间的差超过校准模式期间的差异预定量时，识别过功率状况。 在另一个实施例中，激光器仅被激励以在远低于监管标准的降低功率水平下发射光束，以便即使电动机驱动器失效也可以凝视。

    Imaging reader with adaptive focusing for electro-optically reading symbols
    5.
    发明授权
    Imaging reader with adaptive focusing for electro-optically reading symbols 有权
    具有自动对焦功能的电光读取符号的成像读取器

    公开(公告)号：US07905414B2

    公开(公告)日：2011-03-15

    申请号：US12005579

    申请日：2007-12-27

    申请人： James Giebel ,  David P. Goren ,  Bradley Carlson ,  Christopher Warren Brock ,  William Sackett ,  Edward Barkan ,  Vladimir Gurevich

    发明人： James Giebel ,  David P. Goren ,  Bradley Carlson ,  Christopher Warren Brock ,  William Sackett ,  Edward Barkan ,  Vladimir Gurevich

    IPC分类号： G06K7/10 ,  G06K9/22

    CPC分类号： G06K7/10722 ,  G02B3/14 ,  G06K7/10811 ,  G06K7/10831

    摘要： An imaging assembly in an imaging reader for electro-optically reading indicia includes a solid-state imager having an array of image sensors, and a focus control element, such as a liquid imaging lens, having a variable transfer function characteristics for capturing, optically modifying and directing return light from the indicia over a field of view onto the imager for processing into an electrical signal indicative of the indicia during a reading mode of operation; and a controller for controlling the imaging assembly to optically modify the return light in accordance with a known transfer function stored in a memory accessible to the controller during a calibration mode of operation prior to the reading mode.

    摘要翻译： 用于电光学读取标记的成像读取器中的成像组件包括具有图像传感器阵列的固态成像器和诸如液体成像透镜的聚焦控制元件，其具有用于捕获，光学修改的可变传递函数特征 以及将来自所述标记的返回光引导到所述成像器上以在读取操作模式期间处理成指示所述标记的电信号; 以及控制器，用于控制所述成像组件，以在所述读取模式之前的操作校准模式期间，根据存储在所述控制器可访问的存储器中的已知传递函数光学地修改所述返回光。

    Laser power control arrangements in electro-optical readers
    6.
    发明授权
    Laser power control arrangements in electro-optical readers 有权
    电光读取器中的激光功率控制装置

    公开(公告)号：US07609736B2

    公开(公告)日：2009-10-27

    申请号：US11239745

    申请日：2005-09-30

    申请人： Costanzo Difazio ,  Vladimir Gurevich ,  James Giebel ,  Gary G. Schneider ,  Matthew Blasczak ,  Mark A. Weitzner ,  Edward Barkan

    发明人： Costanzo Difazio ,  Vladimir Gurevich ,  James Giebel ,  Gary G. Schneider ,  Matthew Blasczak ,  Mark A. Weitzner ,  Edward Barkan

    IPC分类号： H01S3/00

    CPC分类号： H01S5/0014 ,  G06K7/10851 ,  H01S5/0617 ,  H01S5/06808 ,  H01S5/06825 ,  H01S5/0683

    摘要： Laser power control arrangements interrupt power to a laser used in electro-optical readers upon detection of an over-power condition not conforming to preestablished regulatory standards. In one embodiment, during an operational mode, a difference between laser drive currents at two operating points is compared to a difference between laser drive currents at the same two operating points during a calibration mode. The over-power condition is recognized when the difference during the operational mode exceeds the difference during the calibration mode by a predetermined amount. In another embodiment, the laser is only energized to emit the beam at a reduced power level well below regulatory standards for staring at even if a motor drive failed.

    摘要翻译： 激光功率控制装置在检测到不符合预先制定的监管标准的过功率状况时，会中断电光读取器中使用的激光的电源。 在一个实施例中，在操作模式期间，将两个操作点处的激光驱动电流之间的差与在校准模式期间相同的两个操作点处的激光驱动电流之间的差异进行比较。 当在操作模式期间的差超过校准模式期间的差异预定量时，识别过功率状况。 在另一个实施例中，激光器仅被激励以在远低于监管标准的降低功率水平下发射光束，以便即使电动机驱动器失效也可以凝视。

    Imaging reader with adaptive focusing for electro-optically reading symbols
    7.
    发明申请
    Imaging reader with adaptive focusing for electro-optically reading symbols 有权
    具有自动对焦功能的电光读取符号的成像读取器

    公开(公告)号：US20090166426A1

    公开(公告)日：2009-07-02

    申请号：US12005579

    申请日：2007-12-27

    申请人： James Giebel ,  David P. Goren ,  Bradley Carlson ,  Christopher Warren Brock ,  William Sackett ,  Edward Barkan ,  Vladimir Gurevich

    发明人： James Giebel ,  David P. Goren ,  Bradley Carlson ,  Christopher Warren Brock ,  William Sackett ,  Edward Barkan ,  Vladimir Gurevich

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10722 ,  G02B3/14 ,  G06K7/10811 ,  G06K7/10831

    摘要： An imaging assembly in an imaging reader for electro-optically reading indicia includes a solid-state imager having an array of image sensors, and a focus control element, such as a liquid imaging lens, having a variable transfer function characteristics for capturing, optically modifying and directing return light from the indicia over a field of view onto the imager for processing into an electrical signal indicative of the indicia during a reading mode of operation; and a controller for controlling the imaging assembly to optically modify the return light in accordance with a known transfer function stored in a memory accessible to the controller during a calibration mode of operation prior to the reading mode.

    摘要翻译： 用于电光学读取标记的成像读取器中的成像组件包括具有图像传感器阵列的固态成像器和诸如液体成像透镜的聚焦控制元件，其具有用于捕获，光学修改的可变传递函数特征 以及将来自所述标记的返回光引导到所述成像器上以在读取操作模式期间处理成指示所述标记的电信号; 以及控制器，用于控制所述成像组件，以在所述读取模式之前的操作校准模式期间，根据存储在所述控制器可访问的存储器中的已知传递函数光学地修改所述返回光。

    Electro-optical imaging reader having plural solid-state imagers with shutters to prevent concurrent exposure
    8.
    发明授权
    Electro-optical imaging reader having plural solid-state imagers with shutters to prevent concurrent exposure 有权
    具有多个具有快门的固态成像器以防止同时曝光的电光成像读取器

    公开(公告)号：US08033472B2

    公开(公告)日：2011-10-11

    申请号：US12315235

    申请日：2008-12-01

    申请人： James Giebel ,  Edward Barkan ,  Christopher Warren Brock ,  Mark Drzymala ,  Igor Vinogradov

    发明人： James Giebel ,  Edward Barkan ,  Christopher Warren Brock ,  Mark Drzymala ,  Igor Vinogradov

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10722 ,  G06K7/0004 ,  G06K7/10732 ,  G06K7/10762

    摘要： A bioptical workstation includes plural image capture modules for capturing images of indicia along different fields of view. Each module includes an illuminator for illuminating the indicia with illumination light, a megapixel imager with a rolling shutter for sequentially capturing the return light, and a shutter element for passing the return light to its imager in an open state, and for blocking the return light from other modules from reaching its imager in an closed state. A controller prevents interference among the modules by controlling the shutter element to assume the open state only during a respective exposure time period during which its imager produces an electrical signal indicative of the indicia, and by controlling the shutter element to assume the closed state at all times other than the respective exposure time period to prevent capture of the return light from the other modules.

    摘要翻译： 生物光学工作站包括用于捕获沿着不同视场的标记图像的多个图像捕获模块。 每个模块包括用照明灯照亮标记的照明器，具有滚动快门的百万像素成像器，用于顺序地捕获返回光;以及快门元件，用于将返回光传送到其成像器处于打开状态，并且用于阻挡返回光 从其他模块到达其成像器处于关闭状态。 控制器通过仅在其成像器产生指示标记的电信号的各自的曝光时间段期间控制快门元件呈现打开状态，并且通过将快门元件全部控制为处于关闭状态来防止模块之间的干扰 不同于各个曝光时间段的时间，以防止从其他模块捕获返回光。