公开(公告)号：US07076364B2

公开(公告)日：2006-07-11

申请号：US10753361

申请日：2004-01-09

Applicant: Nobuhide Kuroda ,  Kunihiro Yamada ,  Mitsuhiro Nimura ,  Hiroyoshi Masuda ,  Hidenori Nagasaka

Inventor： Nobuhide Kuroda ,  Kunihiro Yamada ,  Mitsuhiro Nimura ,  Hiroyoshi Masuda ,  Hidenori Nagasaka

IPC: G01C21/32

CPC classification number: G01C21/3635 ,  G01C21/32 ,  G01C21/3667 ,  G09B29/10

Abstract: A road map display device including a road map information memory for memorizing road map data on a two-dimensional coordinate and a detection device for detecting a present position and a travel direction of an automotive vehicle, wherein the two-dimensional coordinate of the road map data is read out from the information memory in accordance with the present position and travel direction of the vehicle detected by the detection device and displayed in the form of a plane view on a screen of a display unit. In the road map display device, trapezoid conversion parameters are determined on a basis of a conversion formula for converting the two-dimensional coordinate of the road map to a trapezoid coordinate for display of a perspective view in such a manner that an upper side of a square two-dimensional coordinate is contracted relatively to a lower side of the two-dimensional coordinate, and the road map data included in a reverse trapezoid coordinate defined by a reverse conversion formula of the conversion formula are read out from the road map information memory and introduced into a trapezoid coordinate defined by the trapezoid conversion parameters such that the road map data are displayed in the form of a perspective view on the screen of the display unit.

公开(公告)号：US06697733B2

公开(公告)日：2004-02-24

申请号：US10246394

申请日：2002-09-19

Applicant: Nobuhide Kuroda ,  Kunihiro Yamada ,  Mitsuhiro Nimura ,  Hiroyoshi Masuda ,  Hidenori Nagasaka

Inventor： Nobuhide Kuroda ,  Kunihiro Yamada ,  Mitsuhiro Nimura ,  Hiroyoshi Masuda ,  Hidenori Nagasaka

IPC: G01C2130

CPC classification number: G01C21/3635 ,  G01C21/32 ,  G01C21/3667 ,  G09B29/10

Abstract: A road map display device including a road map information memory for memorizing road map data on a two-dimensional coordinate and a detection device for detecting a present position and a travel direction of an automotive vehicle, wherein the two-dimensional coordinate of the road map data is read out from the information memory in accordance with the present position and travel direction of the vehicle detected by the detection device and displayed in the form of a plane view on a screen of a display unit. In the road map display device, trapezoid conversion parameters are determined on a basis of a conversion formula for converting the two-dimensional coordinate of the road map to a trapezoid coordinate for display of a perspective view in such a manner that an upper side of a square two-dimensional coordinate is contracted relatively to a lower side of the two-dimensional coordinate, and the road map data included in a reverse trapezoid coordinate defined by a reverse conversion formula of the conversion formula are read out from the road map information memory and introduced into a trapezoid coordinate defined by the trapezoid conversion parameters such that the road map data are displayed in the form of a perspective view on the screen of the display unit.

Abstract translation: 一种路线图显示装置，其包括用于存储二维坐标上的路线图数据的道路地图信息存储器和用于检测机动车辆的当前位置和行驶方向的检测装置，其中，路线图的二维坐标 根据由检测装置检测到的车辆的当前位置和行驶方向从信息存储器中读出数据，并以显示单元的屏幕上的平面视图的形式显示。 在道路地图显示装置中，基于用于将路线图的二维坐标转换为梯形坐标的转换公式来确定梯形变换参数，以便以透视图的方式显示为 平方二维坐标相对于二维坐标的下侧收缩，并且由路线图信息存储器读出由转换公式的逆转换公式定义的反梯形坐标中包括的路线图数据， 引入由梯形转换参数定义的梯形坐标，使得道路地图数据以显示单元的屏幕上的透视图的形式显示。

公开(公告)号：US5452212A

公开(公告)日：1995-09-19

申请号：US106952

申请日：1993-08-17

Applicant: Shoji Yokoyama ,  Kyoumi Morimoto ,  Mitsuhiro Nimura ,  Akimasa Nanba ,  Hiroyoshi Masuda

Inventor： Shoji Yokoyama ,  Kyoumi Morimoto ,  Mitsuhiro Nimura ,  Akimasa Nanba ,  Hiroyoshi Masuda

IPC: G01C21/36 ,  G07B15/06 ,  G08G1/0969 ,  G06F17/00

CPC classification number: G07B15/063 ,  G01C21/3629 ,  G01C21/3644 ,  G01C21/367 ,  G08G1/0969

Abstract: A navigation system for use in a vehicle including a route-calculating section and a route guide control section. The route-calculating section searches for an optimum route according to conditions set for the search. The guide control section provides displays necessary to guide the driver of the vehicle, and guides the driver by speech. This guide control has a landmark name-setting section which sets the names of landmarks according to information about the landmarks, the information retrieved from a guidance information storage section according to information about the present position from a present position-determining section. A display section displays a whole route map indicating the selected route according to instructions from the route guidance control section. At the same time, the names of the landmarks are presented on the display section. When the navigation system guides the driver to a destination via a tollway such as a toll highway, the name of an entry/exit interchange connecting to the highway is displayed. This permits the driver to take a familiar route up to this interchange.

Abstract translation: 一种用于车辆的导航系统，包括路线计算部分和路线引导控制部分。 路线计算部根据搜索条件搜索最佳路线。 引导控制部分提供引导车辆驾驶员所必需的显示器，并且通过语音引导驾驶员。 该指南控制具有地标名称设定部，其根据关于地标的信息设定地标的名称，根据与当前位置确定部相关的关于当前位置的信息从引导信息存储部检索到的信息。 显示部根据来自路线引导控制部的指示，显示表示所选择的路线的整个路线图。 同时，地标的名称显示在显示部分。 当导航系统通过收费公路等收费站引导驾驶员到目的地时，显示连接到高速公路的进/出交换机的名称。 这样可以让驾驶员熟悉这条交汇路口。

公开(公告)号：US6144318A

公开(公告)日：2000-11-07

申请号：US739709

申请日：1996-10-29

Applicant: Seiji Hayashi ,  Kihachi Hayashida ,  Mitsuhiro Nimura ,  Yasunobu Ito

Inventor： Seiji Hayashi ,  Kihachi Hayashida ,  Mitsuhiro Nimura ,  Yasunobu Ito

IPC: G01C21/36 ,  G08G1/0969 ,  G08G1/123

CPC classification number: G01C21/3682 ,  G01C21/3658 ,  G08G1/0969

Abstract: A navigation system provides road guidance by displaying information relating to roads on a structure shape map, together with landmark information, in such a manner that only information around the present position is highlighted. The system retrieves road information in the direction of travel from the present position according to the vehicle speed, or road information within a predetermined angular or distance range in the direction of travel. Information relating to roads includes information indicating a one-way road, information indicating a road into which entry is prohibited, and information indicating a pedestrian crossing and a railroad crossing. These items of information are displayed by using marks, and the landmark information is displayed by using landmarks, thereby displaying information necessary for travel in a readily perceivable manner according to the travel conditions. When the vehicle enters a parking lot in the middle of the guidance for a route to a destination, the system searches for a route from the parking lot to the destination and outputs the found route by using a structure-shape map. The parking lot in this case is one within a predetermined walking distance from the destination. If the parking lot is in close proximity of the destination, further guidance is not necessary and the guidance is terminated.

Abstract translation: 导航系统通过在结构形状图上显示与道路相关的信息以及地标信息，以仅使当前位置周围的信息突出显示的方式来提供道路引导。 该系统根据车速，或行进方向上的预定角度或距离范围内的道路信息，从当前位置的行进方向检索道路信息。 与道路有关的信息包括指示单行道路的信息，表示禁止入境的道路的信息，以及表示行人过路处和铁路道口的信息。 通过使用标记显示这些信息项，并且通过使用地标显示地标信息，从而根据行驶条件以容易察觉的方式显示行驶所需的信息。 当车辆在到目的地的路线的引导中间进入停车场时，系统搜索从停车场到目的地的路线，并通过使用结构形状图输出找到的路线。 这种情况下的停车场是距目的地预定步行距离内的停车场。 如果停车场靠近目的地，则不需要进一步的指导，并且指导终止。

公开(公告)号：US06098015A

公开(公告)日：2000-08-01

申请号：US764011

申请日：1996-12-11

Applicant: Mitsuhiro Nimura ,  Yasunobu Ito

Inventor： Mitsuhiro Nimura ,  Yasunobu Ito

IPC: G01C21/34 ,  G06F165/00

CPC classification number: G01C21/3484

Abstract: In a navigation system, user preferred road data is determined and stored during travel to supplement fixed road data such as map data, intersection data, node data, and destination data stored in CD-ROM for subsequent use in providing route guidance in accordance with user road preferences. The user preferred road data is the data of actual trips, and the preference of the user is reflected in the user preferred road data. To determine user preferences, either the user preferred road data is compared to the fixed road data or a searched route calculated from the user preferred road data and CD-ROM data is compared with the searched route calculated from CD-ROM data. By using the determined user preferences in route searching, it is possible to provide more elaborate route searching and route guidance in accordance with the preference of the user.

Abstract translation: 在导航系统中，在旅行期间确定并存储用户优选的道路数据，以补充诸如地图数据，交叉路口数据，节点数据和存储在CD-ROM中的目的地数据之类的固定道路数据，用于随后用于根据用户提供路线引导 道路偏好。 用户优选的道路数据是实际旅行的数据，并且用户的偏好被反映在用户偏好的道路数据中。 为了确定用户偏好，将用户优选道路数据与固定道路数据或从用户优选道路数据计算的搜索路线进行比较，并将CD-ROM数据与从CD-ROM数据计算的搜索路线进行比较。 通过在路由搜索中使用确定的用户偏好，可以根据用户的偏好来提供更复杂的路由搜索和路由引导。

公开(公告)号：US6070124A

公开(公告)日：2000-05-30

申请号：US429011

申请日：1999-10-28

Applicant: Mitsuhiro Nimura ,  Kunihiro Yamada ,  Kazuteru Maekawa

Inventor： Mitsuhiro Nimura ,  Kunihiro Yamada ,  Kazuteru Maekawa

IPC: G01C21/36 ,  G08G1/0969 ,  G01C21/00 ,  G06F165/00

CPC classification number: G01C21/3632 ,  G01C21/3629 ,  G01C21/367 ,  G08G1/0969

Abstract: A goal direction mark and a distance to a goal are indicated when the car has approached the end point of route. When the car has deviated from the guide route to the goal or is running backwards on the guide route, there is indicated a mark to inform the direction of progress to the goal on the guide route. When the car has deviated from the guide route and the guide route is not indicated on the map picture, there is indicated the direction to the goal or the direction to the guide route itself. When the start point of route is remote from the present position at the start of the guidance, a mark is indicated to inform the direction to the start point of route. The driver is enabled to easily determine relying upon the indicated mark in which direction he should proceed. When the map picture is scrolled, there is informed the goal direction, route direction or the direction of progress to the goal on the route. The user therefore is enabled to easily know the direction to the goal.

Abstract translation: 当车辆接近路线的终点时，指示目标方向标记和到目标的距离。 当车辆从引导路线偏离目标或者在引导路线上向后行驶时，在引导路线上指示进行目标进展的标记。 当汽车偏离引导路线并且导航路线未在地图上显示时，指示目标的方向或引导路线本身的方向。 当在引导开始的路线起点远离当前位置时，指示标记通知路线起点的方向。 驾驶员能够轻松地确定依赖于他应该在哪个方向进行的指示标记。 当地图图片滚动时，通知路线上的目标方向，路线方向或进度方向。 因此，用户可以轻松地了解目标的方向。

公开(公告)号：US5928308A

公开(公告)日：1999-07-27

申请号：US704010

申请日：1996-08-26

Applicant: Akimasa Nanba ,  Mitsuhiro Nimura ,  Yasunobu Ito

Inventor： Akimasa Nanba ,  Mitsuhiro Nimura ,  Yasunobu Ito

IPC: G01C21/36 ,  G06F165/00

CPC classification number: G01C21/3626

Abstract: A navigation system calculates a route from a present position of a vehicle to a destination and provides guidance based on the calculated route. When the vehicle is within a given distance from a next approaching branch point requiring guidance, branch points existing within a given distance from next approaching branch point are determined and direction information for the branch points is acquired. The acquired direction information is compared with direction information at the next approaching branch point, and a common direction information is displayed based on the result of the comparison. Also, the navigation system according to the present invention detects a name of an interchange where the vehicle is to exit from the course and a distance to said interchange based on the present position of the vehicle in case the road where the vehicle is currently driven along is an expressway or a toll road. The navigation system according to the present invention calculates a route from the present position to the destination and properly calculates and provides guidance for the expected time of arrival at the destination as the vehicle moves.

Abstract translation: 导航系统计算从车辆的当前位置到目的地的路线，并且基于所计算的路线提供指导。 当车辆距离需要引导的下一个接近的分支点在给定距离内时，确定存在于距离下一个接近分支点的给定距离内的分支点，并且获取分支点的方向信息。 将获取的方向信息与下一个接近分支点处的方向信息进行比较，并且基于比较的结果来显示公共方向信息。 此外，根据本发明的导航系统，在车辆当前被驱动的道路的情况下，根据车辆的当前位置，检测车辆要离开路线的距离和与所述交汇处的距离的交换的名称 是高速公路或收费公路。 根据本发明的导航系统计算从当前位置到目的地的路线，并且在车辆移动时适当地计算并提供到达目的地的预期到达时间的指导。

公开(公告)号：US5842147A

公开(公告)日：1998-11-24

申请号：US611884

申请日：1996-03-06

Applicant: Mitsuhiro Nimura ,  Kunihiro Yamada ,  Kazuteru Maekawa

Inventor： Mitsuhiro Nimura ,  Kunihiro Yamada ,  Kazuteru Maekawa

IPC: G01C21/36 ,  G08G1/0969 ,  G01C21/00

CPC classification number: G01C21/3632 ,  G01C21/3629 ,  G01C21/367 ,  G08G1/0969

Abstract: A goal direction mark and a distance to a goal are indicated when the car has approached the end point of route. When the car has deviated from the guide route to the goal or is running backwards on the guide route in a direction that is opposite to the direction of the goal, there is indicated a mark to inform the direction of progress to the goal on the guide route. When the car has deviated from the guide route and the guide route is not indicated on the map picture, there is indicated the direction to the goal or the direction to the guide route itself. When the start point of route is remote from the present position at the start of the guidance, a mark is indicated to inform the direction to the start point of route. The driver is enabled to easily determine relying upon the indicated mark in which direction he should proceed. When the map picture is scrolled, there is informed the goal direction, route direction or the direction of progress to the goal on the route. The user therefore is enabled to easily know the direction to the goal.

Abstract translation: 当车辆接近路线的终点时，指示目标方向标记和到目标的距离。 当汽车已经从引导路线偏离到目标位置或者沿着与目标方向相反的方向在导航路线上向后行进时，指示了用于向导通道方向的标记 路线。 当汽车偏离引导路线，并且导航路线未在地图上显示时，指示目标的方向或导向路线本身的方向。 当在引导开始的路线起点远离当前位置时，指示标记通知路线起点的方向。 驾驶员能够轻松地确定依赖于他应该在哪个方向进行的指示标记。 当地图图片滚动时，通知路线上的目标方向，路线方向或进度方向。 因此，用户可以轻松地了解目标的方向。

公开(公告)号：US5067082A

公开(公告)日：1991-11-19

申请号：US408504

申请日：1989-08-23

Applicant: Mitsuhiro Nimura ,  Akimasa Nanba ,  Shoji Yokoyama

Inventor： Mitsuhiro Nimura ,  Akimasa Nanba ,  Shoji Yokoyama

IPC: G01C21/26 ,  G01C21/34

CPC classification number: G01C21/30 ,  G01C21/26

Abstract: Navigation data (26) are generated by performing course exploration up to a destination using path data (26), which include information relating to intersections and road information, in response to input of the destination. Course guidance to the destination is provided while present-position pursuit (37) is performed. Course guidance at an end-point of a present-position road is outputted using guidance information for travel to a destination at every intersection obtained from the road network data (26) by course exploration. At an intersection, a road in a direction of travel is recognized by the present-position pursuit means (37), present position on this road is kept track of and the end-point intersection of the road is recognized. Recognition of the travelling direction is performed at the end-point intersection of a road between intersections, and guidance to the next end-point intersection is outputted with the road in the travelling direction serving as a present-position road, whereby course guidance is performed repeatedly at every intersection up to the destination. In course exploration, a road in the direction of travel leading to the destination is set with regard to each intersection. Therefore, if an intersection and the road in the travelling direction thereof are recognized, it is possible to provide course guidance from the end-point intersection of the road in the travelling direction to the destination.

公开(公告)号：US4937752A

公开(公告)日：1990-06-26

申请号：US290136

申请日：1988-12-27

Applicant: Akimasa Nanba ,  Mitsuhiro Nimura ,  Shoji Yokoyama

Inventor： Akimasa Nanba ,  Mitsuhiro Nimura ,  Shoji Yokoyama

IPC: G01C21/00 ,  G01C21/28 ,  G08G1/0969

CPC classification number: G01C21/28

Abstract: In a navigation system, during navigation between guidance intersections A and B, a next named intersection C is displayed along with the distance remaining until the named intersection B is reached. After the vehicle has entered the distance error correction range, illumination color of the display of the next named intersection C is changed into, for example, red. If a corresponding portion of the display screen is touched at the time of passage though the intersection, a distance error is corrected. The invention thus makes it possible to readily correct distance errors with accuracy. Even during navigation along a straight road, distance correction can be performed at specific intersections. The invention also makes it possible to track the present position with accuracy by increasing the frequency of distance error correction.