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    Electrical, mechanical, and logical interface for a user terminal GPS accessory module
    1.
    发明授权
    Electrical, mechanical, and logical interface for a user terminal GPS accessory module 失效
    电气，机械和逻辑接口，用于用户终端GPS附件模块

    公开(公告)号：US06480149B1

    公开(公告)日：2002-11-12

    申请号：US09473485

    申请日：1999-12-28

    申请人： Mark Sutherland ,  Bruce Hammon ,  Amala Kelshiker ,  Kristian Rauhala ,  Rolf Huber ,  Robert Twitchell ,  John Topoleanu ,  Sami Sabat

    发明人： Mark Sutherland ,  Bruce Hammon ,  Amala Kelshiker ,  Kristian Rauhala ,  Rolf Huber ,  Robert Twitchell ,  John Topoleanu ,  Sami Sabat

    IPC分类号： G01S514

    CPC分类号： G01S5/0027 ,  G01S19/25 ,  G01S19/34 ,  G01S19/35 ,  G01S2205/008

    摘要： An accessory module for a user terminal is disclosed that utilizes information broadcast from the GPS system to determine the user terminal's position on the earth. An improved electrical interface between the GPS accessory module and the user terminal is utilized that takes advantage of pre-existing electrical interfaces within the user terminal. The accessory module also includes a method and apparatus for managing its power consumption. A set of mechanical interfaces among the components of the GPS accessory module are disclosed for minimizing electrical path lengths, noise and crosstalk in the accessory module, and for providing for mechanical mounting of the components. A mechanical interface between the user terminal and the accessory module is also disclosed for coupling to an existing user terminal in place of that user terminal's removable battery pack. The invention further includes a method and apparatus for improving the accessory module's accuracy by providing position assistance data from a position reference server. The assistance data is provided to the accessory module by way of a transmission channel communication between the user terminal and the position reference server.

    摘要翻译： 公开了一种用于用户终端的附件模块，其利用从GPS系统广播的信息来确定用户终端在地球上的位置。 利用GPS附件模块和用户终端之间的改进的电接口，利用用户终端内的预先存在的电接口。 附件模块还包括用于管理其功耗的方法和装置。 公开了一种在GPS附件模块的组件之间的机械接口，用于使附件模块中的电路长度，噪声和串扰最小化，并提供组件的机械安装。 还公开了用户终端和附件模块之间的机械接口，用于代替用户终端的可拆卸电池组耦合到现有的用户终端。 本发明还包括一种通过从位置参考服务器提供位置辅助数据来改善附件模块的精度的方法和装置。 辅助数据通过用户终端和位置参考服务器之间的传输信道通信提供给附件模块。