laman (10/07/82)
I am sighted, so I don't know how smart this sounds, but it seems to me that a blind person would not want a reciever for both ears since I believe that they "see" (if you will) the most with their ears! A one ear reciever at most! Mike sdcsvax!laman
knutsen@sri-unix (10/21/82)
#R:rabbit:-80300:sri-unix:7300002:000:572 sri-unix!knutsen Oct 20 17:04:00 1982 I saw a real device on TV a year or two ago that was worn like glasses and sent out ultrasonic signals. The wearer was fed a tone proportional in frequency to the frequency shift of the received signal (the echo). I think it was also proportional in amplitude to the amplitude of the echo. (This is similar to the doppler radar the military uses.) It was done in stereo, and the result was an ability to locate objects and tell their speed. They showed someone (blind) walking down a pretty crowded street with one on. Havent heard of it since tho. Andrew Knutsen