Patent ID: 9724003
Date: 2017-08-08
CPC Classifications: A61B

Claim:
1. An apparatus comprising: a piezoelectric film to generate an excitation signal in response to pressure variations on a surface of the piezoelectric film; an analog front end coupled to the piezoelectric film, the analog front end to generate a first measurement signal based on the excitation signal; a heart rate monitor coupled to the analog front end, the heart rate monitor to generate a continuous heart rate measurement based on the first measurement signal; an optical module, implemented at least partly in one or more of configurable logic or fixed functionality logic hardware, coupled to the heart rate monitor; and an activity level monitor coupled to the optical module, the activity level monitor to activate the optical module in response to a physical activity condition being met and deactivate the optical module in response to the physical activity condition not being met, wherein the optical module is to generate a second measurement signal when the optical module is activated, and wherein the heart rate monitor is to generate the continuous heart rate measurement based on the second measurement signal when the second measurement signal is received from the optical module.