Christian Leth Petersen,John Mark Ansermino,Guy Dumont
申请号：
US14234986
公开号：
US20140155708A1
申请日:
2013.05.13
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Methods, systems and related apparatus are provided for controlling an electronic device to operate an external sensor connectable to an audio interface of the electronic device by applying a first harmonic driving signal to a first contact and a second harmonic driving signal to a second contact of the audio interface for driving the external sensor, receiving a response signal at a third contact of the audio interface, adjusting at least one of the first and second harmonic driving signals, determining one or more physiological parameters based on characteristics of the first and second harmonic driving signals and the response signal, and outputting the determined one or more physiological parameters.
