Wearable navigation assistance for the vision-impaired

Z Zhu, T Ro, L Ai, W Khoo, E Molina… - US Patent App. 14 …, 2014 - Google Patents
BACKGROUND 0004 Blindness is a disability that affects millions of people throughout the
world. According to the World Health Organization, there are 285 million people who are …

WEARABLE NAVIGATION ASSISTANCE FOR THE VISION-IMPAIRED

Z Zhu, T Ro, L Ai, W Khoo, E Molina… - US Patent App. 14 …, 2014 - freepatentsonline.com
An assistive device includes a sensor that detects information using a first modality; an
actuator that conveys information using a second, different modality; and a controller that …