Using sounds for determining a worn state of a wearable computing device
First Claim
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1. A method, comprising:
- transmitting, by one or more audio sources, an audio signal;
receiving, at one or more sensors coupled to a wearable computing device, an airborne version of the audio signal, modified by an environment of the wearable computing device;
processing the airborne version of the audio signal to obtain an impulse response parameter and a power spectrum parameter;
comparing the obtained impulse response and power spectrum parameters with at least one classifier of a support vector machine (SVM) model, wherein the at least one classifier is associated with one or more worn states of the wearable computing device, and wherein the SVM model correlates an impulse response parameter and a power spectrum parameter of one or more reference signals; and
based on the comparison of the obtained impulse response and power spectrum parameters with the at least one classifier of the SVM model, determining, from the one or more worn states, a worn state of the wearable computing device.
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Abstract
Methods, apparatus, and computer-readable media are described herein related to using self-generated sounds for determining a worn state of a wearable computing device. A wearable computing device can transmit an audio signal. One or more sensors coupled to the wearable computing device may then receive a modified version of the audio signal. A comparison may be made between the modified version of the audio signal and at least one reference signal, where the at least one reference signal is based on the audio signal that is transmitted. Based on an output of the comparison, a determination can be made of whether the wearable computing device is being worn.
19 Citations
20 Claims
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1. A method, comprising:
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transmitting, by one or more audio sources, an audio signal; receiving, at one or more sensors coupled to a wearable computing device, an airborne version of the audio signal, modified by an environment of the wearable computing device; processing the airborne version of the audio signal to obtain an impulse response parameter and a power spectrum parameter; comparing the obtained impulse response and power spectrum parameters with at least one classifier of a support vector machine (SVM) model, wherein the at least one classifier is associated with one or more worn states of the wearable computing device, and wherein the SVM model correlates an impulse response parameter and a power spectrum parameter of one or more reference signals; and based on the comparison of the obtained impulse response and power spectrum parameters with the at least one classifier of the SVM model, determining, from the one or more worn states, a worn state of the wearable computing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory computer readable medium having stored thereon instructions that, upon execution by a wearable computing device, cause the wearable computing device to perform functions comprising:
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transmitting, by one or more audio sources, an audio signal; receiving, at one or more sensors coupled to the wearable computing device, an airborne version of the audio signal, modified by an environment of the wearable computing device; processing the airborne version of the audio signal to obtain an impulse response parameter and a power spectrum parameter; comparing the obtained impulse response and power spectrum parameters with at least one classifier of a support vector machine (SVM) model, wherein the at least one classifier is associated with one or more worn states of the wearable computing device, and wherein the SVM model correlates an impulse response parameter and a power spectrum parameter of one or more reference signals; and based on the comparison of the obtained impulse response and power spectrum parameters with the at least one classifier of the SVM model, determining, from the one or more worn states, a worn state of the wearable computing device. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system, comprising:
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a head-mountable computing device (HMD); one or more audio sources; one or more sensors coupled to the HMD; at least one processor coupled to the HMD; and data storage comprising instructions executable by the at least one processor to cause the system to perform functions comprising; transmitting, by the one or more audio sources, an audio signal; receiving, at the one or more sensors, an airborne version of the audio signal, modified by an environment of the HMD; processing the airborne version of the audio signal to obtain an impulse response parameter and a power spectrum parameter; comparing the obtained impulse response and power spectrum parameters with at least one classifier of a support vector machine (SVM) model, wherein the at least one classifier is associated with one or more worn states of the HMD, and wherein the SVM model correlates an impulse response parameter and a power spectrum parameter of one or more reference signals; and based on the comparison of the obtained impulse response and power spectrum parameters with the at least one classifier of the SVM model, determining, from the one or more worn states, a worn state of the HMD. - View Dependent Claims (17, 18, 19, 20)
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Specification