Accurate Indoor Positioning System Using Near-Ultrasonic Sound from a Smartphone. - Shotaro Murata; Chokatsu Yara; Kazumasa Kaneta; Shigenori Ioroi; Hiroshi Tanaka (NGMAST, 2014)

Tracking Positions of Human Body Parts Based on Distance Measurement with Sound Wave. - Masatoshi Matsumoto; Kazumasa Kaneta; Miyabi Naruoka; Hiroshi Tanaka; Kosuke Takano (AINA Workshops, 2017)