VAD detection apparatus and method of operating the same

US9147397B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9147397-B2
Application numberUS-201414525413-A
CountryUS
Kind codeB2
Filing dateOct 28, 2014
Priority dateOct 29, 2013
Publication dateSep 29, 2015
Grant dateSep 29, 2015

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Abstract

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At a processing device, a first signal from a first microphone and a second signal from a second microphone are received. The first signal indicates whether a voice signal has been determined at the first microphone, and the second signal indicates whether a voice signal has been determined at the second microphone. When the first signal indicates potential voice activity or the second signal indicates potential voice activity, the processing device is activated to receive data and the data is examined for a trigger word. When the trigger word is found, a signal is sent to an application processor to further process information from one or more of the first microphone and the second microphone. When no trigger word is found, the processing device is reset to deactivate data input and allowing the first microphone and the second microphone to enter or maintain an event detection mode of operation.

First claim

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What is claimed is: 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…

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What does patent US9147397B2 cover?
At a processing device, a first signal from a first microphone and a second signal from a second microphone are received. The first signal indicates whether a voice signal has been determined at the first microphone, and the second signal indicates whether a voice signal has been determined at the second microphone. When the first signal indicates potential voice activity or the second signal i…
Who is the assignee on this patent?
Knowles Electronics Llc
What technology area does this patent fall under?
Primary CPC classification G10L15/22. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Sep 29 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).