Multimode sensor devices
AssigneeFitbit, Inc.
InventorsJung Ook Hong, Andrew Larsen Axley, Shelten Gee Jao Yuen
Life of this patent
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Abstract
The disclosure provides BMDs that have multiple device modes depending on operational conditions of the devices, e.g., motion intensity, device placement, and/or activity type. The device modes are associated with various data processing algorithms. In some embodiments, the BMD is implemented as a wrist-worn or arm-worn device. In some embodiments, methods for tracking physiological metrics using the BMDs are provided. In some embodiments, the process or the BMD applies a time domain analysis on data provided by a sensor of the BMD for a first activity, and applies a frequency domain analysis on the data for a second activity, which contributes to improved accuracy and speed of biometric data.
Claims14
A wearable device, comprising:
- one or more sensors providing sensor output data comprising information about a user's physiological activity when the wearable device is worn by the user;
- a display device;
- and
- one or more processors configured to:
- (a) operate the one or more sensors to provide the sensor output data when the wearable device is worn by the user;
- (b) determine that a first portion of the sensor output data includes data indicative of the user being engaged in a first exercise activity;
- (c) determine that a signal power of the first portion of the sensor output data is lower than a threshold;
- (d) select, based on determining that the signal power is lower than the threshold, a first measure of a first periodic component of the first portion of the sensor output;
- (e) update, responsive to the determination of (d), a physiological metric using information obtained from a frequency domain analysis of the first portion of the sensor output data;
- (f) determine that a second portion of the sensor output data includes data indicative of the user being engaged in a second exercise activity;
- (g) determine that a signal power of the second portion of the sensor output data is greater than a threshold;
- (h) select, based on determining that the signal power of the second portion is greater than the threshold, a second measure of a second periodic component of the second portion of the sensor output;
- (i) update the physiological metric using information obtained from a time domain analysis of the second portion of the sensor output data;
- and
- (j) cause the display device to display the physiological metric.
Dependencies are inferred from the claim text.