Automotive navigation system
1 Assignment
0 Petitions
Accused Products
Abstract
An automotive navigation system wherein a memory included therein has not stored therein picture information of an actual map but instead has stored therein geographical names and the geographical positions thereof. When the geographical names of the departure point and the destination point are entered through an input unit, a control unit reads out from the memory the respective graphical names and the positional information thereof. A display device displays marks indicating the departure point, the destination point, and the current position of a vehicle on an adequately reduced scale on the display screen. Furthermore, a display control is carried out such that the mark indicating the current position of the vehicle does not extend beyond the display screen during the running of the vehicle.
-
Citations
7 Claims
- 1. An automotive navigation system comprising:
-
2. a running distance detecting means for detecting the running distance of a vehicle;
- a vehicle heading detecting means for detecting the heading of the vehicle;
a display means for enabling a planar display based on the two dimensional Cartesian coordinates system;
a storage means for storing information comprising a geographical name and the positional information thereof for each of a plurality of points; and
a control means for designating the geographical names of a departure point and a destination point, reading out the positional information from said storage means of the designated geographical names, receiving signals from said running distance sensor and said heading sensor, computing the current position of the vehicle on the basis of said signals, computing coordinates on said display means of marks indicative of said departure point, said destination point, and the current position of the vehicle on the basis of their mutual positional relationship and in a reduced scale determined by said departure point, destination point, and the current position of the vehicle so that said marks do not deviate from said display means while the vehicle is being driven, and causing said display means to display said marks indicative of said departure point, said destination point, and the current position of the vehicle in said reduced scale at said corresponding computed coordinates. - View Dependent Claims (4, 6)
- a vehicle heading detecting means for detecting the heading of the vehicle;
Specification