David Albert,Bruce Richard Satchwell,Kim Norman Barnett
申请号:
US13420520
公开号:
US08301232B2
申请日:
2012.03.14
申请国别(地区):
US
年份:
2012
代理人:
摘要:
A personal monitoring device has a sensor assembly configured to sense physiological signals upon contact with a users skin. The sensor assembly produces electrical signals representing the sensed physiological signals. A converter assembly, integrated with, and electrically connected to the sensor assembly, converts the electrical signals generated by the sensor assembly to a frequency modulated inaudible ultrasonic sound signal. The ultrasonic signal is demodulated from an aliased signal produced by undersampling.