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1. 发明授权

US5459667A Navigation apparatus for informing vehicle driver of information regarding travel route 失效
标题翻译：用于通知车辆驾驶员关于行驶路线的信息的导航装置
公开(公告)号：US5459667A
公开(公告)日：1995-10-17
申请号：US181023
申请日：1994-01-14
申请人： Hideo Odagaki , Shingo Tsuda
发明人： Hideo Odagaki , Shingo Tsuda
IPC分类号： G01C21/30 , G06F165/00
CPC分类号： G01C21/30
摘要： A vehicle navigation apparatus comprises a control unit for computing an optimum travel route between a departure point and a destination of a vehicle to calculate similarity values each indicating degree of similarity between the pattern of the travel locus of the vehicle and the pattern of each of the travel roads included in a road map. The vehicle navigation apparatus further comprises a control unit for selecting, from the road map, candidate travel roads each having a road pattern having a similarity value exceeding a predetermined similarity level. The candidate travel roads includes a present travel road on which the vehicle is currently traveling. The control unit determines as to whether or not one of the candidate travel roads overlaps with the optimum travel route. A display or a loudspeaker informs to a vehicle driver that the vehicle comes to travel on the optimum travel route when it comes to be determined that one of the candidate travel roads overlaps with the optimum travel route, and informs to the vehicle driver that the vehicle comes to stray from the optimum travel route when it comes to be determined that no candidate travel road overlaps with the optimum travel route. The vehicle navigation apparatus thus constructed can flexibly determine whether the vehicle strays from the optimum travel route, thereby making it possible to prevent the vehicle driver from being perplexed by wrong information.
摘要翻译：车辆导航装置包括：控制单元，用于计算车辆的出发点和目的地之间的最佳行驶路线，以计算各自指示车辆的行驶轨迹的图案与每个车辆的图案之间的相似度的相似度值旅行路线包含在路线图中。车辆导航装置还包括控制单元，用于从道路地图中选择具有超过预定相似度的相似度值的道路图案的候补行驶道路。候选行驶道路包括车辆当前行驶的当前行驶路。控制单元确定候选行驶道路中的一个是否与最佳行驶路线重叠。当确定一个候补行驶道路与最佳行驶路线重叠时，显示器或扬声器向车辆驾驶员通知车辆在最佳行驶路线上行驶，并且向车辆驾驶员通知车辆当确定没有候选人旅行路线与最佳旅行路线重叠时，偏离最佳旅行路线。这样构成的车辆用导航装置能够灵活地判定车辆是否从最佳行驶路线偏离，从而能够防止车辆驾驶员误认为错误的信息。

2. 发明授权

US5544087A Navigation system 失效
标题翻译：导航系统
公开(公告)号：US5544087A
公开(公告)日：1996-08-06
申请号：US249720
申请日：1994-05-26
申请人： Masahiro Nakajima , Hideo Odagaki
发明人： Masahiro Nakajima , Hideo Odagaki
IPC分类号： G01C21/26 , G06F165/00
CPC分类号： G01C21/26
摘要： A navigation system for a vehicle comprises a central processing unit for executing a plurality of programs including a navigation program and a transmitting program, and an internal nonvolatile storage device electrically connected to the central processing unit through an inner bus and storing therein the transmitting program. The navigation system further comprises an external storage device electrically connected to the inner bus through an interface unit and storing therein the navigation program. The central processing unit is initially operated to execute the transmitting program to read the navigation program from the external storage device and store the read navigation program in the internal nonvolatile storage device, and subsequently operated to repeat the execution of the navigation program stored in the internal nonvolatile storage device to provide a vehicle driver with navigation information including the current location of the vehicle.
摘要翻译：用于车辆的导航系统包括用于执行包括导航程序和发送程序的多个程序的中央处理单元，以及通过内部总线电连接到中央处理单元并在其中存储发送程序的内部非易失性存储设备。导航系统还包括通过接口单元与内部总线电连接并在其中存储导航程序的外部存储装置。中央处理单元最初被操作以执行发送程序以从外部存储设备读取导航程序并将读取的导航程序存储在内部非易失性存储设备中，并且随后操作以重复执行存储在内部的导航程序非易失性存储装置，为车辆驾驶员提供包括车辆的当前位置的导航信息。

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