Shelten Yuen,Subramaniam Venkatraman,Eric Van Albert,James Park
申请号：
US14156381
公开号：
US08827906B2
申请日:
2014.01.15
申请国别(地区):
US
年份:
2014
代理人:
摘要：
A system and method of tracking activity includes a motion sensor, a light source and a light detector. The light detector is configured to capture an amount of the light that is reflected back to the light detector, at least a first portion of the light reflected back to the light detector is reflected from a blood vessel disposed under a skin of a user when the user places the skin over the heart rate monitor location on the housing. A processor is in communication with the motion sensor and the light detector and can process the reflected light to identify heart beats of the user and produce an indication of a heart rate. The indication of the heart rate can be displayed on the display screen as an option, in addition to the metrics that quantify the motion data.
