238617 ⎘
Tent, canopy, umbrella, or cane Cane for the blind
Method and apparatus for tactile haptic device to guide user in real-time obstacle avoidance
#2APPARATUS AND METHOD FOR SENSING OF THREE-DIMENSIONAL ENVIRONMENTAL INFORMATION
#3Apparatus and method for sensing of three-dimensional environmental information
#4Location, orientation, product and color identification system for the blind or visually impaired