Preliminary Results W. Crandall, Ph.D, B. Bentzen, Ph.D, L. Myers, M.Ed. People who are print disabled, are blind, or have other visual impairments are at a disadvantage for the lack of labels and signs. The Talking Signs system is comprised of infrared transmitters which convey speech messages to small receivers carried by blind travelers.
Infrared transmission is directional.
This means that when blind Talking Signs users pick up a message, they can also tell where it comes from. The message is coming from the direction in which they are pointing when they hear the message clearly. Travelers who are blind can get to the destination by walking in the direction from which they receive a clear message. They do not need to remember directions. They just travel toward the sign they hear, in the same way that sighted people travel toward a sign or landmark they see.