Thursday, February 17, 2005
“The system, dubbed Navigational Assistance for the Visually Impaired (NAVI), can provide location information for the visually impaired and for other kinds of navigational assistance applications like self-guided tours.
The system includes a set of permanently mounted passive transponders and a reader/playback device carried by the user. Rather than tipping off an inventory system when a specific item is near, a transponder trips a particular CD track when a playback device comes within range.
The system could be a low-cost alternative to global positioning system-based schemes for providing location-specific information and pedestrian navigational assistance.”