Motor vehicle map display system
First Claim
1. A micro highway map projection system for displaying on a viewing screen in an automobile a greatly enlarged image of a minute area of a map, means for continuously moving the map to follow a highway across the entire map, manually operable means for storing data respecting an initial location of said automobile with respect to said map, and means for continuously computing and displaying the distance from said initial location to another location on said map displayed on said viewing screen.
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Accused Products
Abstract
A map display system for an automobile, in which a map is projected on a screen by optical magnification of a portion of a map disposed on a movable slide. A portion of the slide contains a list of locations such as cities, governmental institutions and points of interest, with an optical positioning code adjacent to each item of the list. Means is provided for automatically positioning the slide to display a selected location on the list, and for showing successive locations on the display in accordance with a prearranged itinerary as the automobile traverses the locations.
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Citations
26 Claims
- 1. A micro highway map projection system for displaying on a viewing screen in an automobile a greatly enlarged image of a minute area of a map, means for continuously moving the map to follow a highway across the entire map, manually operable means for storing data respecting an initial location of said automobile with respect to said map, and means for continuously computing and displaying the distance from said initial location to another location on said map displayed on said viewing screen.
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13. In combination, a micro road map transparency including X, Y coordinate disignating machine readable code symbols corresponding to the positions of the centers of minute areas located thereon, means for displaying names associated with said symbols and said positions, and means responsive to said code symbols for projecting said minute areas onto a screen so that the centers of said minute areas lie on the optical axis of projection.
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14. A micro road map projection system for displaying on an automobile viewing screen a greatly enlarged image of a minute area of a map by reference to an arbitrary coordinate index, including control panel positioning means for centering any city located in the area projected onto the screen from the map, and means coupled to said map for simultaneously displaying the name of said city, and for digitally displaying the coordinates corresponding to said city.
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15. A map display system, comprising a slide holder into which a translucent slide may be removably inserted;
- a slide for mounting in said holder, said slide comprising a greatly reduced translucent microhighway or microstreet map encompassing a large area;
control means for positioning and centering any minute region of the map and for continuously moving the map in order to display highway and street details traversing adjacent regions thereof;
a display screen;
optical projection means for displaying a greatly magnified image of said minute region on said screen, manually operable means for storing data respecting an initial location of said automobile with respect to said map, and means for continuously computing and displaying the distance from said initial location to another location on said map displayed on said viewing screen.
- a slide for mounting in said holder, said slide comprising a greatly reduced translucent microhighway or microstreet map encompassing a large area;
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16. A map display system for a motor vehicle, comprising:
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a slide holder for a slide having (i) a map portion comprising a projectable highway map and (ii) an index portion comprising a projectable list of locations and an optical coordinate position code corresponding to each location of said list; coordinate control servomechanism means for positioning said slide holder in accordance with X-position and Y-position coordinate control signals; optical map projection means for displaying on a first screen a magnified image of a selected part of the map portion of said slide; optical index projection means mounted on said slide holder for displaying on a second screen a magnified image of at least one selected item of said list of locations; index decoding means optically coupled to said index portion of said slide and responsive to said coordinate position code for generating X-position and Y-position coordinate designation signals cooresponding to said selected item; an index register for storing said coordinate designation signals; and means coupled to said index register and operative in a location display mode of said system for generating said coordinate control signals to cause said slide holder to move to a position in which a location corresponding to said selected item of said list is displayed on said screen. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A map display system for a motor vehicle, comprising:
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a slide holder for a slide having (i) a map portion comprising a projectable highway map and (ii) an index portion comprising a list of locations and a coordinate position code corresponding to each location of said list; optical map projection means for displaying a magnified image of a selected part of the map portion of said slide; coordinate control servomechanism means for positioning said slide holder an optical map projection means with relation to each other in accordance with X-position and Y-position coordinate control signals; index designating means for designating at least one selected item of said list of locations; index decoding means coupled to said index portion of said slide and responsive to said coordinate position code for generating X-position and Y-position coordinate designation signals cooresponding to said selected item; an index register for storing said coordinate designation signals; and means coupled to said index register and operative in a location display mode of said system for generating said coordinate control signals to cause said slide holder to move to a position in which a location corresponding to said selected item of said list is displayed on said screen.
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Specification