发明名称 |
WEARABLE HEART RATE MONITOR |
摘要 |
Some embodiments provide a wearable fitness monitoring device including a motion sensor and a photoplethysmographic (PPG) sensor. The PPG sensor includes (i) a periodic light source, (ii) a photo detector, and (iii) circuitry determining a user's heart rate from an output of the photo detector. Some embodiments provide methods for operating a heart rate monitor of a wearable fitness monitoring device to measure one or more characteristics of a heartbeat waveform. Some embodiments provide methods for operating the wearable fitness monitoring device in a low power state when the device determines that the device is not worn by a user. Some embodiments provide methods for operating the wearable fitness monitoring device in a normal power state when the device determines that the device is worn by a user. |
申请公布号 |
US2014275852(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201414292669 |
申请日期 |
2014.05.30 |
申请人 |
Fitbit, Inc. |
发明人 |
Hong Jung Ook;Yuen Shelten Gee Jao |
分类号 |
A61B5/024;A61B5/11;A61B5/0205 |
主分类号 |
A61B5/024 |
代理机构 |
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代理人 |
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主权项 |
1. A method of operating a heart rate monitor of a wearable fitness monitoring device comprising a plurality of sensors including the heart rate monitor, the method comprising:
(a) operating the heart rate monitor in a first mode while also operating in a second mode configured to detect near proximity of the wearable fitness monitoring device to a user's skin, wherein the first mode is configured to determine one or more characteristics of a user's heartbeat waveform when the wearable fitness monitoring device is in near proximity to the user; (b) from information collected in the second mode, determining that the heart rate monitor is not proximate to the user's skin; and (c) in response to determining that the heart rate monitor is not proximate to the user's skin, ending operating the heart rate monitor in the first mode. |
地址 |
San Francisco CA US |