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Design of a Low-Frequency Microphone for Mobile Phones and Its Application to Ubiquitous Medical and Healthcare Monitoring

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4 Author(s)
Kajiro Watanabe ; System Control Engineering Department, Faculty of Engineering, Hosei University, Tokyo, Japan ; Yosuke Kurihara ; Tetsuo Nakamura ; Hiroshi Tanaka

This paper describes a novel strategy for providing ubiquitous medical and healthcare monitoring through the use of a mobile phone equipped with a low-frequency microphone sensitive to pressure waves in the frequency range of 0.1 Hz to 10 kHz. The mobile phone is placed in a sealed air cushion under the pillow or mattress of the subject's bed. The low-frequency microphone in the mobile phone picks up the signals from the subject's heartbeat, respiration, body movement and snoring and transmits them to a healthcare center where an auto-diagnosing system or specialist monitors the subject's health condition.

Published in:

IEEE Sensors Journal  (Volume:10 ,  Issue: 5 )