Communications: electrical – Vehicle position indication – Map display
Patent
1990-10-01
1992-05-12
Ng, Jin F.
Communications: electrical
Vehicle position indication
Map display
340990, 364449, G08G 1123
Patent
active
051131854
ABSTRACT:
A current location indicating apparatus for use in an automotive vehicle. The apparatus comprises a current travel distance detection unit adapted to detect a current cumulated travel distance of the vehicle. A bearing detection unit is adapted to detect a current bearing in accordance with current travel. A signal processing unit is adapted to obtain a current locational point in terms of two-dimensional coordinates of the moving vehicle in accordance with the outputs from each of the detection units. A path of travel store unit is adapted to sequentially store the locational data in terms of the two-dimensional coordinates varying from time to time as obtained by the signal processing unit and hold the contents thereof as current continuous locational information on the moving vehicle. Also provided is a microfilm including a series of photographic images of area maps which are prepared in advance for display use, an image pick-up unit adapted to electrically read desired information on an area map from the microfilm, a display unit adapted to visually indicate a map in accordance with the current read-out map information and display with a marking showing the state of travel motion on the same display screen in accordance with the locational data stored in the path of travel store unit, and a manual operating unit adapted to selectively specify an area map desired to be shown on the display screen and properly initialize the marking of indication on the display.
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Burt Pamela S.
Carrier Joseph P.
Honda Giken Kogyo Kabushiki Kaisha
Ng Jin F.
Swarthout Brent A.
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