Wireless handheld portable navigation system and method for visually impaired pedestrians
    2.
    发明申请
    Wireless handheld portable navigation system and method for visually impaired pedestrians 审中-公开
    视觉障碍行人的无线手持式便携式导航系统及方法

    公开(公告)号:US20050140544A1

    公开(公告)日:2005-06-30

    申请号:US10858211

    申请日:2004-06-02

    Abstract: This invention relates to a system for orienting and guiding visually impaired pedestrians. The system combines a Global Positioning System (GPS) receiver to a dead reckoning unit that compensates for GPS imprecision and loss of signal. The system is highly portable: it is based on a handheld portable computing platform that communicates wirelessly with a self-powered strap containing the GPS receiver and the dead reckoning unit. The system also uses wireless protocols to receive additional orientation information from a remote location server or operator accessible through the internet. Additionally, a positioning algorithm for mapping the user near a street intersection is provided.

    Abstract translation: 本发明涉及一种用于定向和引导视觉障碍的行人的系统。 该系统将全球定位系统(GPS)接收机与推算GPS不精确和信号丢失的航位推算单元相结合。 该系统是高度便携式的:它是基于手持式便携式计算平台,其与包含GPS接收器和推算单元的自供电带无线通信。 该系统还使用无线协议从远程位置服务器或可通过互联网访问的操作员接收额外的方向信息。 另外,提供了一种用于在街道交叉口附近映射用户的定位算法。

    FRONT MOUNT ROTARY CUTTER WITH DISCHARGE CHUTES
    6.
    发明申请
    FRONT MOUNT ROTARY CUTTER WITH DISCHARGE CHUTES 审中-公开
    前置放大器的旋转切割机

    公开(公告)号:US20130025250A1

    公开(公告)日:2013-01-31

    申请号:US13555599

    申请日:2012-07-23

    CPC classification number: A01D34/667

    Abstract: The present relates to a front mount rotary cutter. The present front mount rotary cutter comprises a shell, a drive coupler affixed to the shell, and a plurality of rotary blades hingedly mounted to the shell. The plurality of rotary blades is driven by the drive coupler. The present front mount rotary cutter also comprises a plurality of discharge chutes. The plurality of discharge chutes protects a vehicle and/or the drive coupler from dust and debris generated upon operation of the plurality of rotary blades.

    Abstract translation: 本发明涉及一种前端旋转切割机。 本发明的前安装旋转切割机包括外壳,固定在外壳上的驱动联接器和铰接地安装在外壳上的多个旋转刀片。 多个旋转叶片由驱动联接器驱动。 本前置旋转切割机还包括多个排放滑槽。 多个排放滑槽保护车辆和/或驱动联接器免受多个旋转叶片操作时产生的灰尘和碎屑的影响。

Patent Agency Ranking