Patent ID: 9147397
Filing Date: 2015-09-29
Classification: G10L,H04R,H04W

Abstract:
1. A method, comprising: at a processing device, receiving a first signal from a first microphone and a second signal from a second microphone, the first signal affirmatively and without further processing indicating whether a voice signal has been determined by a first VAD module at the first microphone, and the second signal affirmatively and without further processing indicating whether a voice signal has been determined by a second VAD module at the second microphone, the processing device being physically separate and distinct from the first microphone and the second microphone; when the first signal indicates potential voice activity or the second signal indicates potential voice activity, activating the processing device to receive data and subsequently examining the data for a trigger word and when the trigger word is found, sending a first control signal to an application processor that is physically separate and distinct from the processing device, the first microphone, and the second microphone to activate the application processor to further process information from one or more of the first microphone and the second microphone; when no trigger word is found, resetting the processing device to deactivate data input and sending a second control signal from the processing device to the first microphone and the second microphone causing the first microphone and the second microphone to enter or maintain an event detection mode of operation where no data is being output from the first microphone or the second microphone.