Additionally, controls on the cane itself to select which, of several possible pieces of information, are brought to the attention of the cane user, with the information perhaps being translated into auditory form and listened to through an earpiece plugged into the cane. Map grid references might be one such piece of information, descriptions of traffic features might be another. For instance, the chips could supplement the textured pavement surfaces now commonly used to guide the blind by providing information about proximity to a road, a flight of steps, the pavement edge, or other hazard. Additional features might include information storage in the cane indicating the particular locations visited (touched) by the cane tip.
Contributors: Mark R. Diamond