Patent ID: 9043211
Filing Date: 2015-05-26
Classification: G06F,G10L

Abstract:
1. A voice activated device, comprising: a voice trigger circuit, an automatic speech recognition circuit; a controller; a set of detectors; wherein the voice trigger circuit is arranged to receive first detection signals from a first sensor of the set of detectors and to trigger an activation of the automatic speech recognition circuit in response to a detection of a voice trigger, while the automatic speech recognition device is in a first power mode; wherein the automatic speech recognition circuit is arranged to detect, while operating in a second power mode, an audio activation command; wherein a power consumption of the automatic speech recognition circuit when operating in the second power mode exceeds a power consumption of the automatic speech recognition when operating in the first power mode; wherein the first sensor is a bone conduction sensor or a vibration sensor; and wherein the controller is arranged to determine which sub-set of detectors to activate when the automatic speech recognition device is in the first power mode, in response to previous voice trigger detections and automatic speech recognition detections; wherein the sub-set of detectors belongs to the set of detectors.