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1. 发明授权

US5557522A Apparatus and method for guiding vehicle occupant to travel from present position of vehicle to set destination through display unit 失效
标题翻译：引导车辆乘客从当前位置行驶到通过显示单元设定目的地的装置和方法
公开(公告)号：US5557522A
公开(公告)日：1996-09-17
申请号：US302028
申请日：1994-09-09
申请人： Okihiko Nakayama , Brian R. Grom , Masayasu Iwasaki , Hiroshi Tsuda
发明人： Okihiko Nakayama , Brian R. Grom , Masayasu Iwasaki , Hiroshi Tsuda
IPC分类号： G01C21/36 , G05D1/00
CPC分类号： G01C21/3446
摘要： In an apparatus and method for guiding a vehicle occupant from a present position of the vehicle to a destination to which the vehicle occupant desires to reach, optimum routes of travel from the present position to respective intersections surrounding the present position of the vehicle are already searched and stored when the vehicle stops at the present position of the vehicle with a vehicular ignition switch turned off. Then, when the ignition switch is turned on and the vehicle occupant sets the destination, the optimum routes from the set destination toward the present position are searched on the basis of the road map data and result of search of the optimum routes of the respective intersections surrounding the present position of the vehicle. When the optimum route from the set destination to the present position of the vehicle is searched, the display unit superimposes and displays the present position of the vehicle and the optimum route to the destination on the road map so as to quickly start the guidance of the route from the present position to the destination. In the embodiment, if the set destination corresponds to one of registered points of locations, the present position and the optimum route to the destination are immediately displayed on the road map after the destination is set.
摘要翻译：在将车辆乘员从车辆的当前位置引导到车辆乘客希望到达的目的地的装置和方法中，已经搜索了从当前位置到包围车辆当前位置的各个交叉路口的最佳路线并且当车辆在车辆点火开关断开时在车辆的当前位置停止时被存储。然后，当点火开关接通并且车辆乘客设定目的地时，根据道路地图数据和各交叉点的最佳路线的搜索结果来搜索从设定目的地到当前位置的最佳路线围绕车辆的当前位置。当搜索从设定目的地到当前位置的最佳路线时，显示单元将车辆的当前位置和最佳路线叠加并显示在路线图上的目的地，以便快速开始从当前位置到目的地的路线。在本实施例中，如果设定的目的地对应于位置的登记点中的一个，则在目的地设置之后立即在路线图上显示当前位置和到目的地的最佳路线。

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