System and method for tracking a pedestrian
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United States of America Patent
Stats
-
Nov 28, 1995
Grant Date -
N/A
app pub date -
Mar 17, 1994
filing date -
Mar 17, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention is a global positioning system that helps a blind pedestrian navigate through a city. This system uses the Department of Defense Global Positioning System (GPS) and a Differential GPS receiver to determine a pedestrian's longitude and latitude. Once these coordinates have been determined, they are correlated with a computerized map database. The map database holds the names and coordinates of specific locations, such as intersections, in a particular region. The system of the present invention retrieves the names of locations from the map database that are near the pedestrian. These names are then output to a voice synthesizer.
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Cited Art Landscape
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