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    • 1. 发明授权
    • System for personalized mobile navigation information
    • 个性化移动导航信息系统
    • US06349257B1
    • 2002-02-19
    • US09396205
    • 1999-09-15
    • Te-Kai LiuPaul A. MoskowitzMichael C. GreenwoodLawrence I. LiebermanDavid A. Wood
    • Te-Kai LiuPaul A. MoskowitzMichael C. GreenwoodLawrence I. LiebermanDavid A. Wood
    • G06F16500
    • G08G1/096811G01C21/3484G01C21/3688G08G1/096838G08G1/096883
    • A mobile navigation system implemented as an embedded system in a vehicle is easy to use, does not detract the driver's attention from the road, and limits the number of choices presented to the user of the navigation system according to a predetermined set of preferences or personalized information. Choices are filtered according to a set of driver preferences, according to the vehicle's geographic position, direction of motion, and the driver's intended itinerary. The itinerary, including intermediate stops, is calculated on an external computing system. The information is downloaded from the computing system to a memory device such as, for example, a smart card. The information is then transferred from the smart card to the embedded vehicle navigation system. In one application of the invention, a kiosk located at a car rental agency may be used to create and store personalized navigation information onto a smart card which the customer then inserts into the vehicle navigation system that is installed in the rental car.
    • 在车辆中实现为嵌入式系统的移动导航系统易于使用,不会降低驾驶员对道路的关注,并且根据预定的一组偏好或个性化的限制将导航系统的用户的选择数量限制 信息。 根据车辆的地理位置,运动方向和驾驶员的预定行程,根据一组驾驶员偏好来过滤选择。 包括中间站在内的行程是在外部计算系统上计算出来的。 该信息从计算系统下载到诸如智能卡的存储设备。 然后将信息从智能卡传输到嵌入式车辆导航系统。 在本发明的一个应用中,可以使用位于汽车租赁代理处的信息亭来将个性化导航信息创建并存储到智能卡上,然后客户插入到安装在租赁汽车中的车辆导航系统中。
    • 3. 发明授权
    • Dual map system for navigation and wireless communication
    • 双地图系统,用于导航和无线通信
    • US06871139B2
    • 2005-03-22
    • US09925600
    • 2001-08-10
    • Te-Kai LiuMichael C. GreenwoodLawrence L. LiebermanKiyoshi MaruyamaPaul A. Moskowitz
    • Te-Kai LiuMichael C. GreenwoodLawrence L. LiebermanKiyoshi MaruyamaPaul A. Moskowitz
    • G01C21/26H04W24/00H04Q7/20H04M11/00
    • H04W24/00G01C21/26
    • A system produces of an empirical map of wireless communication coverage through a process of combining information from individual clients to produce a map which is then shared by all of the clients. The wireless coverage map aids in maintaining a reliable communications link. The empirical map is generated by combining information from a group of mobile wireless users. The group may consist of a fleet of trucks, taxicabs, government service vehicles, or the customers of a wireless service provider. The mobile vehicles must be equipped with a GPS device or be located by other means such as triangulation. While vehicles are moving, the quality of wireless communication, e.g., signal strength or communication continuity, is recorded for each vehicle as a function of positions. The data from all of the vehicles is combined to produce the empirical map. The empirical map may be maintained at a central site and subsets of the map replicated for individual vehicles. The map may then be used to direct mobile users to sites of superior communications reliability, warn mobile users when they are out of the service area or are about to leave the service area, or to regulate data communications automatically to stop and restart communications as a mobile vehicle passes through a gap in coverage.
    • 系统通过组合来自各个客户端的信息的过程产生无线通信覆盖的经验图,以产生由所有客户端共享的地图。 无线覆盖图有助于维护可靠的通信链路。 通过组合一组移动无线用户的信息来生成经验图。 该集团可能包括卡车,出租车,政府服务车辆或无线服务提供商的客户。 移动车辆必须配备GPS装置,或者通过其他方式进行定位,例如三角测量。 当车辆移动时,作为位置的函数,针对每个车辆记录无线通信的质量,例如信号强度或通信连续性。 来自所有车辆的数据被组合以产生经验图。 经验图可以保存在中心站点,并且为各个车辆复制的地图的子集。 然后,该地图可以用于将移动用户引导到具有优异通信可靠性的站点,当移动用户离开服务区域或即将离开服务区域时警告移动用户,或者自动规范数据通信以停止并重新启动作为 移动车辆通过覆盖的差距。