Michael Edward Smith Luna,Sidney Primas,John M. Stivoric,Chris Singleton,Piyush Savalia,Prasad Panchalan,Sheila Nabanja,Sylvia Hou-Yan Cheng,Ilyas Mohammad,Sumit Sharma
申请号：
US14121939
公开号：
US20150297145A1
申请日:
2014.11.04
申请国别(地区):
US
年份:
2015
代理人:
摘要：
Embodiments relate generally to a wearable device implementing a touch-sensitive interface in a metal pod cover and/or bioimpedance sensing to determine physiological characteristics, such as heart rate. According to an embodiment, a wearable device and method includes determining a drive current signal magnitude for a bioimpedance signal to capture data representing a physiological-related component, and selecting the drive current signal magnitude as a function of an impedance of a tissue. Further, the method can include driving the bioimpedance signal to that are configured to convey the bioimpedance signal to the tissue. Also, the method can receive the sensor signal from the tissue, adjust a gain for an amplifier, and apply the gain to data representing the physiological-related component. The method can include generating an amplified signal to include a portion of the physiological-related signal component that includes data representing a physiological characteristic.
