Wireless handheld portabel navigation system and method for visually impaired pedestrians

This invention relates to a system for orienting and guiding visually impaired pedestrians. The system combines a Global Positioning System (GPS) receiver to a dead reckoning unit that compensates for GPS imprecision and loss of signal. The system is highly portable: it is based on a handheld portab...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAMEL PIERRE, PEPIN GILLES, GAUDET MANON
Format: Patent
Sprache:eng
Schlagworte:
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