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    Stereoscopic map-display method and navigation system using the method
    5.
    发明公开
    Stereoscopic map-display method and navigation system using the method 有权
    Verfahren zur stereoskopischen Kartenanzeige und Navigationssystem zur Verwendung bei dem Verfahren

    公开(公告)号：EP1024467A2

    公开(公告)日：2000-08-02

    申请号：EP00101242.6

    申请日：2000-01-25

    申请人： Hitachi, Ltd. ,  Xanavi Informatics Corporation

    发明人： Okude, Mariko ,  Endo, Yoshinori ,  Hiroshige, Hideo

    IPC分类号： G08G1/0969

    CPC分类号： G01C21/3638 ,  G08G1/0969

    摘要： The view point-setting part (305) calculates the position of the view point V to be set behind the current position of the car and up in the air, based on the current position calculated by the current position-measuring part and the position correcting part (307). The data reading part (308) reads out map data M (3) about map elements such as buildings, which are located around the current position. The representing method-changing part (312) calculates the distance or level difference between the view point and each of the map elements, and, for example, changes the representation shapes of ones of the map elements near the view point, that is, in the region within a predetermined distance from the view point, to detailed shapes, and the rest ones far from the view point, that is, outside the region within a predetermined distance from the view point, to simple shapes, respectively. Finally, the display processing part (311) composes an image of each of the map element according to the displaying mode of the map element, which is sent from the representation method-changing part (312), and displays the image.

    摘要翻译： 视点设定部（305）基于当前位置测量部所计算出的当前位置和位置校正值，计算要设定在轿厢的当前位置之后和空中的视点V的位置 部分（307）。 数据读取部（308）读出关于位于当前位置周围的诸如建筑物的地图元素的地图数据M（3）。 代表方法改变部分（312）计算视点与每个地图元素之间的距离或水平差，并且例如改变视点附近的一个地图元素的表示形状，即，在 距离观察点的预定距离内的区域，到详细的形状，以及远离观察点的其余部分，即距离观察点的预定距离内的区域之外的区域分别为简单的形状。 最后，显示处理部（311）根据从表示方式变更部（312）发送的映射要素的显示模式，构成每个映射要素的图像，并显示图像。

    Route search system
    6.
    发明授权
    Route search system 有权
    路线搜索系统

    公开(公告)号：EP2489983B1

    公开(公告)日：2018-04-11

    申请号：EP12155712.8

    申请日：2012-02-16

    申请人： HITACHI, LTD.

    发明人： Okude, Mariko ,  Hiruta, Tomoaki ,  Kumagai, Masatoshi

    IPC分类号： G01C21/34

    CPC分类号： G01C21/343 ,  G01C21/3492

    摘要： A route search system 1 includes: a reception means 14 for receiving a search request for a plurality of first routes, that are routes between all the combinations of two of a plurality of points; a search means 16 for, when the search request is received by the reception means 14, searching the plurality of first routes based upon a search condition included in the search request; and a supply means 17 for transmitting route information for the plurality of first routes searched by the search means 16. Both a number of times the search request is received by the reception means, and a number of times route information is transmitted by the supply means 17, are smaller than a number of points in the plurality of points.

    Navigation device, route-search server, and route-search system
    7.
    发明授权
    Navigation device, route-search server, and route-search system 有权
    导航设备，路线搜索服务器和路线搜索系统

    公开(公告)号：EP2270432B1

    公开(公告)日：2018-04-04

    申请号：EP10167691.4

    申请日：2010-06-29

    申请人： Hitachi, Ltd. ,  Clarion Co., Ltd.

    发明人： Okude, Mariko ,  Fushiki, Takumi ,  Machii, Kimiyoshi ,  Amaya, Shinichi

    IPC分类号： G01C21/34

    CPC分类号： G01C21/3415

    摘要： A server device 1 included in the route-search system 7 comprises a guided-navigation-route-search section 130 for searching a route starting from a departure point and reaching a destination; and a preparatory-route-search section 140 for searching a preparatory route in view of a possible deviation of the vehicle from a navigation route. The server device 1 transmits information on the navigation route and the preparatory route to the navigation device 2. When detecting the deviation of the vehicle, the navigation device 2 selects one of preparatory routes having nodes closest to the current position of the vehicle. The navigation device 2 searches a supplementary route connecting the current position of the vehicle to the nodes, and combines the preparatory route with the supplementary route to create a new route for continuing navigating the vehicle to the destination.