TALKING SIGNS

Simulator technology developed by Mitsubishi Precision is making the world a safer and more convenient place for people who can't see. The company, Japan's leader in flight simulators, steers vision impaired people to destinations by means of infrared signals.

Infrared connections are better suited to the system than radio links, partly because they don't produce electronic interference. Another advantage of infrared signals is that they allow for zeroing in on objectives: the signal becomes stronger as the user points the receiver toward the source of the signal. The new system for vision impaired people incorporates technology that Mitsubishi Precision uses in connection with infrared guidance systems for aircraft and other applications. And working with U.S. company Talking Signs helped speed up development.

Variations on the system include a programmable personal transmitter. It lets users record the route back to a train seat, a hotel room, or any other destination. Mitsubishi Precision has plans for a museum version that will convey information about paintings and other artworks on display. And the company is developing a model that will store information in compact flash memory. That will eliminate the need for the users to be in front of the transmitter during replay. The memory junction will allow for recording multi language transmissions and playing back information in the user's language of choice.

Several potential customers have expressed interest in Mitsubishi Precision's system. Some will do more than simply install transmitters; they will lend receivers to visitors to use on the premises. Mitsubishi Precision, meanwhile, is working with counterparts worldwide to develop an international technical standard. That will ensure global compatibility and support increased mobility for people regardless of sight.