Patent ID: 9324313
Filing Date: 2016-04-26
CPC Classification: G10K,H04R

Claim Text:
1. A method, comprising: transmitting, via an output transducer of a wearable computing device, a first pure tone signal to a first ear, wherein the transmitting provides an air-conducted pure tone to the first ear; transmitting a second pure tone signal to cause vibration of at least one bone conduction transducer (BCT) of the wearable computing device, wherein the vibration provides a first portion of a bone-conducted pure tone to the first ear and a second portion of the bone-conducted pure tone to a second ear; transmitting, via another output transducer of the wearable computing device, a noise signal to the second ear, wherein the transmitting provides a noise to the second ear and substantially masks sound at the second ear; based on wearer-specific parameters, receiving an adjustment of the first pure tone signal such that the adjusted first pure tone signal, when transmitted, provides the air-conducted pure tone and substantially masks the bone-conducted pure tone; determining a transform based at least in part on the adjustment; receiving, by at least one input transducer of the wearable computing device, a first audio signal associated with ambient sound from an environment of the wearable computing device; processing the first audio signal so as to determine a second audio signal that is out of phase with the first audio signal and effective to substantially cancel at least a portion of the first audio signal; multiplying a superposition of the second audio signal and a third audio signal by the transform to generate a noise-cancelling audio signal, wherein the third audio signal is representative of a sound to be provided by the wearable computing device; and based on the noise-cancelling audio signal, causing a given BCT of the at least one BCT to vibrate so as to provide, to an ear of the first and second ears, a noise-cancelling sound representative of the noise-cancelling audio signal and effective to substantially cancel at least a portion of the ambient sound.