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Low power activation of voice activated device

A voice activation, device technology, applied in speech analysis, speech recognition, input/output process of data processing, etc., can solve problems such as excessive power consumption

Active Publication Date: 2014-11-12
DSP GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when used in a noisy environment, the use of the microphone circuit caused many spurious triggers of the speech recognition process, resulting in excessive use of power consumption

Method used

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  • Low power activation of voice activated device
  • Low power activation of voice activated device
  • Low power activation of voice activated device

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Embodiment Construction

[0050] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.

[0051] The subject matter which is regarded as the invention is particularly pointed out and distinctly claimed in the concluding portion of the specification. However, the invention, as well as its organization and method of operation, together with its objects, features and advantages, may be better understood by referring to the following detailed description when read in conjunction with the accompanying drawings.

[0052] It is to be understood that, for simplicity of illustration and clarity of illustration, elements shown in the figures h...

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Abstract

In a mobile device, a bone conduction or vibration sensor is used to detect the user's speech and the resulting output is used as the source for a low power Voice Trigger (VT) circuit that can activate the Automatic Speech Recognition (ASR) of the host device. This invention is applicable to mobile devices such as wearable computers with head mounted display, mobile phones and wireless headsets and headphones which use speech recognition for the entering of input commands and control. The speech sensor can be a bone conduction microphone used to detect sound vibrations in the skull, or a vibration sensor, used to detect sound pressure vibrations from the user's speech. This VT circuit can be independent of any audio components of the host device and can therefore be designed to consume ultra-low power. Hence, this VT circuit can be active when the host device is in a sleeping state and can be used to wake the host device on detection of speech from the user. This VT circuit will be resistant to outside noise and react solely to the user's voice.

Description

[0001] related application [0002] This application claims the benefit of US Provisional Patent Serial No. 61 / 821,244, filed May 9, 2013, which is incorporated herein by reference. technical field [0003] The present invention relates to the field of Voice Triggering (VT) used in many mobile electronic devices that provide voice input commands and controls through the use of Automatic Speech Recognition (ASR). Background technique [0004] Many electronic voice-activated devices use automatic speech recognition (ASR) technology as a means of entering voice commands and control phrases. For example, a user can operate an Internet browser on their mobile device by speaking audio commands. Voice activation includes a voice trigger (VT) detection process and an ASR process. [0005] Voice triggers are used to detect that a specific audio command may have been issued, and the speech is then processed using ASR. [0006] In order to respond to user commands or user requests, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00
CPCG10L15/28G06F1/3265G06F3/167G10L15/20G10L25/78
Inventor 摩西·海伊特阿里·海曼乌里·耶胡达
Owner DSP GROUP
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