Position input system for vehicular navigation apparatus
    1.
    发明授权
    Position input system for vehicular navigation apparatus 失效
    用于车辆导航装置的位置输入系统

    公开(公告)号:US5115399A

    公开(公告)日:1992-05-19

    申请号:US618021

    申请日:1990-11-26

    CPC分类号: G01C21/36

    摘要: A position input system for a vehicular navigation apparatus includes an input unit for inputting a desired destination and a present position, a memory unit for storing desired destination information and map information, and a display unit for outputting the desired destination information and map information in response to input information from the input unit. The map information is indicative of intersections and a geographical point located between intersections and possessing useful guidance information. A desired destination and present position are capable of being inputted by setting the useful guidance information between a road leading to and a road leading from the geographical point. This makes it possible to enter position simply and accurately. Positions are precise since they are selected from pre-stored information relating to geographical locations. Vehicle direction can also be inputted in accurate fashion where parking lot exits and intersections are concerned.

    Navigation apparatus with non-volatile memory for return to initial
departure point
    2.
    发明授权
    Navigation apparatus with non-volatile memory for return to initial departure point 失效
    具有非易失性存储器的导航装置返回到初始出发点

    公开(公告)号:US5231584A

    公开(公告)日:1993-07-27

    申请号:US759610

    申请日:1991-09-16

    IPC分类号: G01C21/34

    CPC分类号: G01C21/3415 G01C21/34

    摘要: A navigation apparatus has an input unit (1), a CPU (2), a display unit (3) and a memory unit (4), the memory unit (4) being a memory such as a CD-ROM in which network data of geographical points, namely destinations and present locations, and information are stored in advance. Also stored are map data (10), an intersection list (11), a destination list (12), road data (13) and a region name list (14), etc. When a destination is designated by an input from the input means (1), the CPU (2) performs an exchange with a program, stored in a ROM (9a), in order to set information for travel to the destination by course exploration in accordance with each geographical point stored in the memory unit (4). This information is stored in a memory such as a RAM (9b). In an embodiment, the RAM (9b) is provided with a non-volatile area for storing departure-point data (east longitude, north latitude, etc.). When an input is made by a reset switch in entering a departure point, the data in this non-volatile area can be rewritten. Data written in are preserved until the reset switch is pressed again and a geographical point is entered. Data will not be erased even if an ignition switch is turned off.

    摘要翻译: 导航装置具有输入单元(1),CPU(2),显示单元(3)和存储单元(4),存储单元(4)是诸如CD-ROM的存储器,其中网络数据 的地理位置,即目的地和当前位置,并且预先存储信息。 还存储地图数据(10),交叉路口列表(11),目的地列表(12),道路数据(13)和区域名称列表(14)等。当通过输入的输入指定目的地时 (1)中,CPU(2)执行与存储在ROM(9a)中的程序的交换,以便根据存储在存储单元中的每个地理位置通过课程探索设置到目的地的旅行信息( 4)。 该信息存储在诸如RAM(9b)的存储器中。 在一个实施例中,RAM(9b)设置有用于存储起点数据(东经,北纬等)的非易失性区域。 当输入起点的复位开关进行输入时,可以重写该非易失性区域中的数据。 写入的数据将保留,直到再次按下复位开关并输入地理点。 即使点火开关关闭,数据也不会被擦除。

    Display system in navigation apparatus
    3.
    发明授权
    Display system in navigation apparatus 失效
    导航装置中的显示系统

    公开(公告)号:US5121326A

    公开(公告)日:1992-06-09

    申请号:US666485

    申请日:1991-03-06

    IPC分类号: G01C21/36

    摘要: A display system in a navigation apparatus according to the invention has course searching means (13) for searching out an optimum course based on position information, node data (21), intersection data (19) and road data (23), and scale ratio setting means (15), wherein the scale ratio of a displayed map is set in conformity with distance between a present position and a destination, and roads are selectively displayed on a display unit (31) in conformity with the scale ratio.Further, the invention has a data processing controller (46) for performing processing based on a departure intersection entered at an input unit (43), a display unit for displaying, based on the results of processing, an intersection diagram comprising the departure intersection, a peripheral road network and landmarks, and touch keys (35) such as a verification key for displaying direction of travel on the displayed intersection map, and a rotation instruction key for rotating and displaying the intersection diagram.In addition, the invention includes display means (48) for displaying an intersection diagram, in which direction of travel is pointed upward, and intersection landmark patterns, map data (53) stored as a relationship among roads, intersections and intersection landmarks, and as coordinated, and a data processing controller (46) for reading, from the map data (53), positional coordinates of an intersection landmark to be displayed, rotating and enlarging the positional coordinates and transforming them into coordinates of a display area set on the display means, and sending an output signal to the display means (48) in such a manner that the intersection landmark patterns are displayed on the transformed coordinates.

    Vehicular navigation apparatus with help function
    4.
    发明授权
    Vehicular navigation apparatus with help function 失效
    车载导航仪具有辅助功能

    公开(公告)号:US4992947A

    公开(公告)日:1991-02-12

    申请号:US290118

    申请日:1988-12-27

    CPC分类号: G01C21/3626

    摘要: A vehicular navigation apparatus, which is equipped with a help function, for outputting guidance information for travel to a desired destination includes an input unit having desired destination input means, present position input means and help function input means, a memory unit for storing desired destination information, and a display unit for outputting the guidance information in response to input information from the input unit, wherein the memory unit is provided with a non-volatile RAM, with necessary information being saved in an area of the non-volatile RAM when a help function is called by the help function input means. Help function items are provided for the following occasions: when the driver wishes to input or change a departure point and then depart from that point; when the driver wishes to change a desired destination while en route to a formerly set destination; when the driver strays off course while en route to a desired destination and cannot determine his present position without returning to the point at which the vehicle went off course; when a course cannot be travelled because of road construction or the like; when traffic becomes heavy and the driver wishes to change from one route to another to avoid congestion, and when the driver wishes to temporarily leave the course and then return to the course at the same point.

    Navigation apparatus based on present position calculating system
    5.
    发明授权
    Navigation apparatus based on present position calculating system 失效
    基于当前位置计算系统的导航设备

    公开(公告)号:US4943925A

    公开(公告)日:1990-07-24

    申请号:US260213

    申请日:1988-10-20

    IPC分类号: G01C21/26

    CPC分类号: G01C21/26

    摘要: A navigation apparatus having road system data 6 which represents information of connections and coordinates of intersections and roads between intersections, a travel distance sensor 2, steering angle sensor 3, a present position calculating module 4 for calculating the present position with a unit distance between an intersection and the terminal intersection of a going-out road selected at the former intersection. The apparatus is further provided with a module 15 for generating data on the direction of traveling to a destination point at respective intersections, and a guidance outputting module 5. Traveling direction data is made in response to inputting of the destination point, the present position is determined by selecting a going-out road with the present position calculating module with respect to each intersection, and guidance data on the traveling direction at the terminal intersection of the present road is thereafter output. When a present position is input, the present position is calculated from data on the corresponding road, the travel distance, and the steering angle. Similarly, at the terminal intersection of this road, another road extending in the traveling direction is selected from the road system data. The present position is also calculated with respect to this road.

    Navigation apparatus
    8.
    发明授权
    Navigation apparatus 失效
    导航装置

    公开(公告)号:US5067082A

    公开(公告)日:1991-11-19

    申请号:US408504

    申请日:1989-08-23

    IPC分类号: G01C21/26 G01C21/34

    CPC分类号: G01C21/30 G01C21/26

    摘要: 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.

    An apparatus for correcting distance error in a navigation system
    9.
    发明授权
    An apparatus for correcting distance error in a navigation system 失效
    一种用于校正导航系统中距离误差的装置

    公开(公告)号:US4937752A

    公开(公告)日:1990-06-26

    申请号:US290136

    申请日:1988-12-27

    CPC分类号: G01C21/28

    摘要: 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.

    Navigation apparatus
    10.
    发明授权
    Navigation apparatus 失效
    导航仪

    公开(公告)号:US4937751A

    公开(公告)日:1990-06-26

    申请号:US217530

    申请日:1988-07-11

    摘要: A navigation apparatus for navigating an automotive vehicle in accordance with a preset course while measuring distance travelled and steering angle is characterized by previously storing positions of charactering features along the course and guidance information relating to said characterizing features, correlating travelling distance and the positions of the characterizing features, and outputting guidance information relating to a particular characterizing feature on the condition that said characterizing feature has been approached. Guidance information relating to a particular characterizing feature is outputted when the vehicle has approached this characterizing feature. Thereof, by matching this guidance information with the circumstances along the course, the driver can verify during travel whether the course is correct or not. Accordingly, even if it is a long distance to the intersection at which the next turn is to be made, the driver is capable of verifying the course by the time this intersection is reached. this enables the driver to drive the vehicle without anxiety.

    摘要翻译: 用于在测量行驶距离和转向角度的同时根据预设路线导航机动车辆的导航装置的特征在于,预先存储沿着路线的特征特征的位置和与所述特征特征相关的引导信息,将行驶距离和位置相关联 表征特征,并且在已经接近所述特征特征的条件下输出与特定特征特征相关的引导信息。 当车辆接近该特征特征时,输出与特定特征特征相关的指导信息。 因此,通过将此指导信息与课程的情况进行匹配,司机可以在旅途中验证课程是否正确。 因此,即使与要进行下一回合的交叉路口距离很远,驾驶员也能够在到达该交点的时刻验证路线。 这使驾驶员无需焦虑地驾驶车辆。