Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Patent
1997-10-22
1999-09-14
Zanelli, Michael J.
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
701209, 701211, 340995, G08G 10969
Patent
active
059516224
ABSTRACT:
A navigation system according to the present invention comprises a database apparatus provided with map display data constituted of data representing road positions and physical forms provided in separate sets to correspond to different scales and route search data constituted of data representing connection states of one road connecting with another road provided in separate sets to correspond to different scales; and a control apparatus that, when displaying recommended route data obtained by performing a search using the route search data at a specific first scale superimposed upon a roadmap that is displayed on a monitor based upon map display data at a second scale that is larger than the first scale, reads out physical form data of the recommended route data obtained by performing the search using the route search data at the first scale based upon the map display data at the second scale and displays the physical form data superimposed upon the roadmap on the monitor.
REFERENCES:
patent: 4689747 (1987-08-01), Kurose et al.
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patent: 5036471 (1991-07-01), Tamura et al.
patent: 5168452 (1992-12-01), Yamada et al.
patent: 5285391 (1994-02-01), Smith, Jr. et al.
patent: 5315298 (1994-05-01), Morita
patent: 5519619 (1996-05-01), Seda
Article entitled "Digital Road Map Data Base for Vehicle Navigation and Road Information Systems" by Shunichiro Kamijo et al., pp. 319-323; Sep. 11, 1989.
Proceedings of the Vehicle Navigation and Information Systems Conference, Toronto.
Xanavi Informatics Corporation
Zanelli Michael J.
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