Input device for navigation systems
First Claim
1. An input device for a vehicle navigation system for use with a printed map, comprising:
- map data memory means for storing discrimination information for identification of any one of plural map sections, said discrimination information including plural sets of geographic coordinates correlated with at least one representative point for each of the respective plural map sections;
discrimination information input means for inputting information identifying a selected map section from information provided on the printed map;
geographic coordinates acquisition means for obtaining, from said map data memory means, geographic coordinates of at least said one representative point of the section corresponding to the identifying information input by said discrimination information input means;
a transparent tablet for superimposing on the selected map section to output positional information for a point designated on said transparent tablet;
geographic coordinate calculating means for calculating geographic coordinates of the designated point based upon the geographic coordinates of at least said one representative point of the section, the positional relationship between said one representative point and said transparent tablet, and said positional information output from said transparent tablet; and
output means for outputting the geographic coordinates calculated by said geographic coordinate calculating means to the vehicle navigation system.
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Accused Products
Abstract
An input unit for navigation systems which easily inputs positional information for a destination point and so on. When discrimination information for a designated section of a map is input by an input device and representative points of the section and a certain point within the section are designated by using a transparent tablet overlaid on the map, a CPU, by reference to a map data base, calculates the geographic coordinates of the designated point within the designated section, based on the geographic coordinates of the representative point(s) of the section, and based on all positional information which is output from the transparent tablet and which corresponds to the representative point(s) of the section and the designated point within the section, and transmits the geographic coordinates of the designated point to a navigation device ECU.
48 Citations
16 Claims
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1. An input device for a vehicle navigation system for use with a printed map, comprising:
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map data memory means for storing discrimination information for identification of any one of plural map sections, said discrimination information including plural sets of geographic coordinates correlated with at least one representative point for each of the respective plural map sections; discrimination information input means for inputting information identifying a selected map section from information provided on the printed map; geographic coordinates acquisition means for obtaining, from said map data memory means, geographic coordinates of at least said one representative point of the section corresponding to the identifying information input by said discrimination information input means; a transparent tablet for superimposing on the selected map section to output positional information for a point designated on said transparent tablet; geographic coordinate calculating means for calculating geographic coordinates of the designated point based upon the geographic coordinates of at least said one representative point of the section, the positional relationship between said one representative point and said transparent tablet, and said positional information output from said transparent tablet; and output means for outputting the geographic coordinates calculated by said geographic coordinate calculating means to the vehicle navigation system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification