FB-Finger: Development of a Novel Electric Travel Aid with a Unique Haptic Interface. - Kiyohide Ito; Yoshiharu Fujimoto; Ryoko Otsuki; Yuka Niiyama; Akihiro Masatani; Takanori Komatsu; Junichi Akita; Tetsuo Ono; Makoto Okamoto (ICCHP (2), 2014)