Samsung Releasing Smartphone-Paired Technologies for Blind People

Today’s smartphones have a surprising amount of technology built into them to help people do all sorts of things that were otherwise impossible not so long ago. Their brilliant screens are one of their greatest draws, but somewhat surprisingly at first, the technology within can be harnessed and expanded to help blind people navigate, “see” their environment in a new way, andcommunicate with others. Now Samsung is pushing the boundaries of what smartphones can do for blind people by releasing three new assistive devices that work with their Galaxy Core Advance phones.
The most exciting is perhaps the Ultrasonic Cover that works like a virtual white cane to spot objects ahead of the user. It will vibrate or use text-to-speech (TTS) to notify the user when something is within a couple meters of the cover. 
Link