Boots – shoes – and leggings
Patent
1985-05-10
1987-06-30
Chin, Gary
Boots, shoes, and leggings
364571, 340988, 340995, 73178R, G06F 1550
Patent
active
046775625
ABSTRACT:
An automotive navigation system wherein a storage means included in the system has not stored therein picture information of an actual map, but instead has stored therein the geographical names and the geographical positions of points as well as the declination of the earth magnetism of the points. When the geographical names of a departure point and a destination point are entered through an input unit, a control circuit reads out from the storage means the respective positions of the points entered. The control circuit controls a display unit to display on a display screen marks respectively indicating the departure point, the destination point, and the current position of a vehicle on an adequately reduced scale determined by the positions of these points. A point nearest to the current position of the vehicle while the vehicle is being driven is determined and retrieved by the control circuit from the storage means. On the basis of the declination information of this retrieved point, the detected vehicle heading direction is corrected to make an accurate computation of the current position of the vehicle.
REFERENCES:
patent: 4470119 (1984-09-01), Hasebe et al.
patent: 4513377 (1985-04-01), Hasebe et al.
patent: 4535335 (1985-08-01), Tagami et al.
patent: 4543572 (1985-09-01), Tanaka et al.
patent: 4571684 (1986-02-01), Takanabe et al.
"Cathode-Ray Tube Information Center with Automotive Navigation" by M. W. Jarvis and R. C. Berry.
"On-Board Computer System for Navigation, Orientation, and Route Optimization" by P. Haeussermann.
Itoh Hisatsugu
Uota Kousaku
Chin Gary
Mitsubishi Denki & Kabushiki Kaisha
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