摘要:
An information display system including an input device that inputs a scheduled event, a schedule storage in which the schedule is stored, a display device that displays a map, a memory that stores map information and the scheduled event, and a controller that displays a schedule reminder message on the map at a specified time before the scheduled event is to occur.
摘要:
At the first data access by a navigation unit to a recording medium that records updating right information necessary for updating map data in a rewritable data area in which map data are recorded, the updating right information is read from the data area and is deleted from the data area, and a map updating due date created based on the read updating right information is written in a memory of the navigation unit together with the medium identification information read from a non-rewritable management area.
摘要:
A navigation device that is provided with reference databases that include search databases that are referenced when the navigation device performs a location search for a location on a map, that accepts provided update data, and that performs update processing for the reference databases is provided with a priority processing unit that, in a case where a command to perform the location search is input during the update processing for the reference databases, gives priority to performing the update processing for location data that are stored in the search databases, as well as with a search unit that, after the update processing for the location data is completed by the priority processing unit, is enabled to perform the location search using the updated location data.
摘要:
A navigation system for searching coordinates of a telephone number, displaying a map and setting a point, the navigation system comprising a memory for storing information on a subscriber inclusive of coordinates corresponding to a telephone number and map data, an input device for inputting a telephone number, and a control device for searching a subscriber and coordinates based on the input of the telephone number, setting specific coordinates based on the searched coordinates and displaying a map with the specific coordinates located at the center of the map on a condition that the searched subscriber is a specific classified subscriber, wherein a map with a vague point located at the center of the map is displayed while a private home is not directly displayed thereon when the subscriber is a private subscriber of the input telephone number.
摘要:
A CPU of a navigation apparatus stores public keys to which priorities are set and which are published by an information distribution center in a public key storage section. The CPU of the navigation apparatus extracts an electronic signature of distribution data which is distributed from the information distribution center and verifies the electronic signature by using only ‘valid’ public keys among the public keys in order of the priorities. The CPU of the navigation apparatus determines that the distribution data is valid information which is distributed from the information distribution center when the electronic signature passes verification.
摘要:
A map display device using an input unit for inputting a display scale, a memory for storing polygon map data, a drawing processing control unit for drawing a polygon map by loading polygon map data from the memory and a display unit for displaying an output from the drawing processing control unit, wherein the drawing processing control unit is provided with a function for determining a unit of a polygon map that should be drawn and drawing a polygon map of the determined unit.
摘要:
The invention provides a driver with notice of a certain traffic lane change on a road having many traffic lanes even if passing intersections exists within a predetermined distance before a guide intersection. Specifically, the invention concerns a vehicle navigation system for performing a route search on the basis of the input of a point, such as a destination and further performing route guidance along the searched route, which includes an information memory device for storing traffic lane information at intersections, a display for displaying the traffic lane information and a display controller for displaying traffic lane information at intersections on the display on the basis of the traffic lane data stored on the display. The display controller determines whether a passing intersection exists within a predetermined distance before the guidance intersection and controls so as to display lane information of the passing intersections and guidance intersection when the passing intersections exists.