Education and demonstration – Communication aids for the handicapped
Patent
1994-03-17
1995-11-28
Cheng, Joe H.
Education and demonstration
Communication aids for the handicapped
434116, 434365, 34082519, 34082549, 364449, G09B 2100
Patent
active
054702330
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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Fruchterman James R.
LaPierre Charles
Merritt Bruce W.
Schwegler William C.
Arkenstone, Inc.
Cheng Joe H.
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