Using sounds for determining a worn state of a wearable computing device
First Claim
Patent Images
1. A method, comprising:
- transmitting, by one or more audio sources coupled to a wearable computing device, an audio signal;
receiving a modified version of the audio signal at one or more sensors coupled to the wearable computing device;
processing the modified version of the audio signal to obtain at least one impulse response parameter and at least one power spectrum parameter of the modified version of the audio signal;
determining an excess kurtosis measurement based on the parameters of the modified version of the audio signal;
comparing the excess kurtosis measurement with reference signal data associated with one or more worn states of the wearable computing device; and
based on the comparison, determining whether or not the wearable computing device is being worn.
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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.
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Citations
19 Claims
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1. A method, comprising:
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transmitting, by one or more audio sources coupled to a wearable computing device, an audio signal; receiving a modified version of the audio signal at one or more sensors coupled to the wearable computing device; processing the modified version of the audio signal to obtain at least one impulse response parameter and at least one power spectrum parameter of the modified version of the audio signal; determining an excess kurtosis measurement based on the parameters of the modified version of the audio signal; comparing the excess kurtosis measurement with reference signal data associated with one or more worn states of the wearable computing device; and based on the comparison, determining whether or not the wearable computing device is being worn. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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 coupled to the wearable computing device, an audio signal; receiving a modified version of the audio signal at one or more sensors coupled to the wearable computing device; processing the modified version of the audio signal to obtain at least one impulse response parameter and at least one power spectrum parameter of the modified version of the audio signal; determining an excess kurtosis measurement based on the parameters of the modified version of the audio signal; comparing the excess kurtosis measurement with reference signal data associated with one or more worn states of the wearable computing device; and based on the comparison, determining whether or not the wearable computing device is being worn. - View Dependent Claims (11, 12, 13)
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14. A system, comprising:
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a head-mountable computing device (HMD); one or more audio sources coupled to the HMD; 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; causing the one or more audio sources to transmit an audio signal; receiving a modified version of the audio signal at the one or more sensors; processing the modified version of the audio signal to obtain at least one impulse response parameter and at least one power spectrum parameter of the modified version of the audio signal; determining an excess kurtosis measurement based on the parameters of the modified version of the audio signal; comparing the excess kurtosis measurement with reference signal data associated with one or more worn states of the HMD; and based on the comparison, determining whether or not the HMD is being worn. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification