LASER SCANNERS HAVING DYNAMIC AIMING-SCANNING MODE
    1.
    发明申请
    LASER SCANNERS HAVING DYNAMIC AIMING-SCANNING MODE 审中-公开
    具有动态扫描模式的激光扫描仪

    公开(公告)号:US20130026235A1

    公开(公告)日:2013-01-31

    申请号:US13193752

    申请日:2011-07-29

    IPC分类号: G06K7/14

    CPC分类号: G06K7/10633

    摘要: A method of operating a laser scanner for reading a barcode. The laser scanner is configured to operate in at least two operating modes including a scanning mode and an aiming mode. The method includes operating the laser scanner in the scanning mode after a trigger signal is generated by a trigger on the laser scanner, and decoding the electrical signal that is received from the photodetector when the laser scanner is in the scanning mode. If the electrical signal from the photodetector is not successfully decoded after a first predetermined time period since the trigger signal is generated, alternating the laser scanner between the aiming mode and the scanning mode.

    摘要翻译: 一种操作用于读取条形码的激光扫描器的方法。 激光扫描器被配置为在包括扫描模式和瞄准模式的至少两种操作模式中操作。 该方法包括在激光扫描仪上通过触发产生触发信号之后以扫描模式操作激光扫描仪,以及当激光扫描仪处于扫描模式时解码从光电检测器接收的电信号。 如果在产生触发信号之后的第一预定时间段之后来自光电检测器的电信号未成功解码,则在瞄准模式和扫描模式之间交替激光扫描仪。

    Laser power control arrangements in electro-optical readers
    2.
    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

    IPC分类号: H01S3/00

    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。

    LASER POWER CONTROL ARRANGEMENTS IN ELECTRO-OPTICAL READERS
    4.
    发明申请
    LASER POWER CONTROL ARRANGEMENTS IN ELECTRO-OPTICAL READERS 审中-公开
    电光读取器中的激光功率控制装置

    公开(公告)号:US20100074286A1

    公开(公告)日:2010-03-25

    申请号:US12561341

    申请日:2009-09-17

    IPC分类号: H01S3/00

    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。

    Rock picking device
    6.
    发明授权
    Rock picking device 失效
    岩石采摘装置

    公开(公告)号:US4905767A

    公开(公告)日:1990-03-06

    申请号:US203767

    申请日:1988-06-08

    申请人: Gary G. Schneider

    发明人: Gary G. Schneider

    IPC分类号: A01B43/00

    CPC分类号: A01B43/00

    摘要: A device for picking rocks from a field includes a frame which is mounted on a pair of wheels. A hitch is pivotally attached to the frame and is adapted for engagement with a conventional tractor. The offset of the hitch is adjusted by a hydraulic cylinder to adjust the tracking of the frame behind the tractor. A reel is mounted for rotation on the frame and is powered by a chain and sprocket drive from a rotary hydraulic motor. The reel has a plurality of radially extending spokes, each terminating in a stone picking rake formed by a plurality of spaced teeth. The elevation of the reel with respect to ground level is adjusted by a pair of hydraulic cylinders connected to a pivotal reel mounting frame. A depth stop mechanism is provided to lock the reel in an adjusted elevational position. In a first embodiment, a semi-cylindrical stone collecting box is mounted within the reel frame. As each of the reel spokes rotates to a top position, collected stones fall by gravity into the open stone box. A hinged door is provided in the bottom of the stone box and is operated by a hydraulic cylinder for enabling the collected to be deposited in a desired location. In a second embodiment, the stone collecting box is replaced by an endless belt type conveyor for transporting the stones to a trailer or truck bed.

    摘要翻译: 用于从场拾取岩石的装置包括安装在一对轮上的框架。 挂钩枢转地附接到框架并且适于与常规拖拉机接合。 悬架的偏移量由液压缸进行调节,以调整拖拉机后面框架的跟踪。 卷轴安装成在框架上旋转,并由旋转液压马达的链条和链轮驱动器驱动。 卷轴具有多个径向延伸的辐条,每个辐条终止于由多个间隔开的齿形成的采石耙。 卷轴相对于地平面的高度由连接到枢转卷轴安装框架的一对液压缸调节。 提供深度停止机构以将卷轴锁定在调整的仰角位置。 在第一实施例中,半圆柱形石材收集箱安装在卷轴架内。 当每个卷轴辐条旋转到顶部位置时,收集的石头通过重力落入开放的石箱中。 铰链门设置在石箱的底部,并由液压缸操作,使得所收集的门能够被放置在期望的位置。 在第二实施例中,石料收集箱由用于将石块运输到拖车或卡车车厢的环形带式输送机代替。