Sonar device Helps Blind Navigate

Anonymous Coward writes "The Courier-Journal in Louisville is running a story today about a new handheld sonar device that lets blind people "see" by hearing. It gives audio feedback that changes in pitch according to the distance of objects. The story begins... "Fred Gissoni, who has been blind since birth, was using a hand-held sonar device to examine his back yard when a bird landed on a wire. The device began emitting tones, and Gissoni could tell where the bird was and how it moved. He even noticed the quivering of the wire.""

Comments

This has potential

[Anonymous Coward]

Probably this device could be adopted so that the blind editors can stop posting dupes. Another FP from mode-n. lol

Prior Art?

[polyp2000]

Bats have been using this method of navigation for thousands of years!