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    • 7. 发明授权
    • Portable navigation device with integrated GPS and dead reckoning capabilities
    • 便携式导航设备具有集成的GPS和航位推算能力
    • US06850844B1
    • 2005-02-01
    • US10184844
    • 2002-06-28
    • Thomas H. WaltersCliff A. PembleMin H. Kao
    • Thomas H. WaltersCliff A. PembleMin H. Kao
    • G01C21/00G01C21/16G01C21/20
    • G01C21/165G01C21/20
    • Apparatus, systems and methods are provided for portable navigation devices with various integrated positioning functionality. The apparatus includes a portable electronic device having a processor in communication with a memory. The memory is adapted to store navigation related data. The navigation related data includes cartographic data including a number of locations and data indicative of thoroughfares of a plurality of types connecting certain ones of the locations. The portable electronic device includes a GPS receiver adapted to communicate with the memory and processor. And, the portable electronic device includes a dead reckoning component, including a rate gyro, pedometer, and/or accelerometer adapted to communicate to memory and processor.
    • 为具有各种集成定位功能的便携式导航装置提供装置,系统和方法。 该装置包括具有与存储器通信的处理器的便携式电子设备。 存储器适于存储导航相关数据。 导航相关数据包括制图数据,包括多个位置和指示连接某些位置的多种类型的通道的数据。 便携式电子设备包括适于与存储器和处理器通信的GPS接收器。 并且,便携式电子设备包括航位推算部件,包括适于与存储器和处理器通信的速率陀螺仪,计步器和/或加速度计。
    • 8. 发明授权
    • Systems and methods with integrated GPS and dead reckoning capabilities
    • 具有综合GPS和航位推算功能的系统和方法
    • US06801855B1
    • 2004-10-05
    • US10184373
    • 2002-06-28
    • Thomas H. WaltersCliff A. PembleMin H. Kao
    • Thomas H. WaltersCliff A. PembleMin H. Kao
    • H04B7185
    • G01C21/165G01S19/49
    • Systems and methods are provided for complementary navigation devices with various integrated positioning functionality. The navigation method includes providing a first navigation device. The first navigation device includes a triangulation positioning functionality. The method includes providing a second navigation device adapted to communicate with the first navigation device. The second navigation device includes one or more dead reckoning positioning components. The method further includes resolving a position of the first and the second navigation devices. Resolving the position includes using the one or more dead reckoning positioning components in complement to the triangulation positioning functionality to determine the position when the triangulation positioning functionality is degraded.
    • 为具有各种集成定位功能的互补导航装置提供系统和方法。 导航方法包括提供第一导航装置。 第一导航装置包括三角定位功能。 该方法包括提供适于与第一导航装置进行通信的第二导航装置。 第二导航装置包括一个或多个航位推算定位部件。 该方法还包括解决第一和第二导航装置的位置。 解决该位置包括使用一个或多个航位推算定位部件来补充三角测量定位功能以确定当三角测量定位功能劣化时的位置。