Kajiro Watanabe, Yosuke Kurihara, Ko Watanabe, Toshihiro Azami, Shoko Nukaya, Hiroshi Tanaka. Biosignals Sensing by Novel Use of Bidirectional Microphones in a Mobile Phone for Ubiquitous Healthcare Monitoring. IEEE T. Human-Machine Systems, 44(4):545-550, 2014. [doi]
Abstract is missing.