About 23 results
https://drivepatents.com/patents/1084302 · 8 Sep 2004
A map display apparatus according to the present invention has a display device capable of displaying a road map in different map forms in a base screen region and a window screen region. A control circuit determines whether the window screen is provided o...
https://drivepatents.com/patents/1086529 · 16 Jun 2004
A map display apparatus according to the present invention has a control circuit which divides a display screen of a display device into a plurality of regions, and processes a bird's-eye view data for each region and convert them into map image data. The ...
https://drivepatents.com/patents/1086502 · 16 Jun 2004
A car navigation apparatus includes: a current position detection device that detects a current position of a vehicle; and a control device that detects a plurality of roads as candidates used formapmatching based upon roadmap information containing road d...
https://drivepatents.com/patents/1086749 · 9 Jun 2004
There is provided a map display device and a navigation device for displaying a three-dimensional map in which information which is originally hidden can be displayed on a display frame (screen). The map display device (navigation device) includes a map st...
https://drivepatents.com/patents/1086777 · 2 Jun 2004
In a data access method for accessing data in an on-vehicle information device (1) having an on-vehicle memory unit (17) that allows data stored therein to be read out and overwritten by an external apparatus (2) and an on-vehicle control unit (10) that ex...
https://drivepatents.com/patents/1091188 · 17 Dec 2003
A route searching apparatus comprises a processing device that searches a guided route along which a vehicle is to be guided from a current vehicle position to a destination and also searches a detour route for detouring a detour segment set over part of t...
https://drivepatents.com/patents/1092172 · 5 Nov 2003
A navigation device includes: a display device which displays a map; a route search device which searches a route based upon a departure location, an enroute location, and a destination location which have been inputted; an enroute location addition device...
https://drivepatents.com/patents/1096674 · 23 Apr 2003
A map database apparatus according to the present invention manages roads by expressing the roads as link strings. Each of the link strings is constituted by connecting a plurality of links, each of the links has nodes at a front end and a rear end respect...
https://drivepatents.com/patents/1098085 · 5 Mar 2003
A microprocessor 24 detects turn start and turn finish of a vehicle on the basis of outputs of various sensors 11, 12 and 13, and during this operation, the microprocessor 24 successively sets a current position to a middle point of a next link every time ...
https://drivepatents.com/patents/1105169 · 24 Apr 2002
A route search apparatus according to the present invention comprises: a storage device that stores link positional information of individual links and link connection information between the links, a minimum unit of road on a map being referred to as a li...