发明名称 |
System and method for tracking a pedestrian |
摘要 |
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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申请公布号 |
US5470233(A) |
申请公布日期 |
1995.11.28 |
申请号 |
US19940210239 |
申请日期 |
1994.03.17 |
申请人 |
ARKENSTONE, INC. |
发明人 |
FRUCHTERMAN, JAMES R.;SCHWEGLER, WILLIAM C.;MERRITT, BRUCE W.;LAPIERRE, CHARLES |
分类号 |
G01C21/00;G01S1/00;G01S5/14;G01S19/14;G01S19/34;G08G1/005;G08G1/0968;G09B21/00;G09B29/00;G09B29/10;(IPC1-7):G09B21/00 |
主分类号 |
G01C21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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