Controlling a speech recognition process of a computing device
First Claim
1. A method of controlling a speech recognition process of a computing device, comprising:
- receiving audio signals from a microphone;
receiving head muscle activity signals from a muscle movement detector configured and positioned to measure head muscle activity of a user of the computing device contemporaneously with receiving audio signals from the microphone;
determining whether the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device, wherein the audio characteristic criterion comprises a first root mean square (RMS) threshold level indicative of the user directing audio commands to the computing device;
determining whether the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking;
processing the audio signals through a voice recognition algorithm in response to determining both that the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device and that the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals satisfy the audio characteristic criterion when an RMS level of the audio signals does not exceed the first RMS threshold level; and
not processing the audio signals through the voice recognition algorithm while either the audio signals do not satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device or the head muscle activity signals do not satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals do not satisfy the audio characteristic criterion when the RMS level of the audio signals exceeds the first RMS threshold level.
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Accused Products
Abstract
Methods, systems and devices are provided for controlling a speech recognition process on a computing device. A computing device may receive audio signals from a microphone and muscle movement signals from a muscle movement detector, such as an electromyography sensor. The computing device may determine whether the audio signals satisfy an audio characteristic criterion indicative of speech and whether the head muscle activity signals satisfy a muscle movement criterion indicative of the user speaking. The computing device may perform voice recognition processing on the audio signals through a voice recognition algorithm in response to determining that both the audio signals and the head muscle activity signals satisfy their respective criterion indicative of the user speaking, and not perform voice recognition processing of audio signals while either audio signals or head muscle activity signals do not satisfy their respective criterion indicative of the user speaking.
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Citations
20 Claims
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1. A method of controlling a speech recognition process of a computing device, comprising:
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receiving audio signals from a microphone; receiving head muscle activity signals from a muscle movement detector configured and positioned to measure head muscle activity of a user of the computing device contemporaneously with receiving audio signals from the microphone; determining whether the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device, wherein the audio characteristic criterion comprises a first root mean square (RMS) threshold level indicative of the user directing audio commands to the computing device; determining whether the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking; processing the audio signals through a voice recognition algorithm in response to determining both that the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device and that the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals satisfy the audio characteristic criterion when an RMS level of the audio signals does not exceed the first RMS threshold level; and not processing the audio signals through the voice recognition algorithm while either the audio signals do not satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device or the head muscle activity signals do not satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals do not satisfy the audio characteristic criterion when the RMS level of the audio signals exceeds the first RMS threshold level. - View Dependent Claims (2, 3, 4, 5)
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6. A computing device, comprising:
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a memory; a microphone; a muscle movement detector; and a processor coupled to the memory, the microphone, and the muscle movement detector, wherein the processor is configured with processor-executable instructions to perform operations comprising; receiving audio signals from the microphone; receiving head muscle activity signals from the muscle movement detector configured and positioned to measure head muscle activity of a user of the computing device contemporaneously with receiving audio signals from the microphone; determining whether the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device, wherein the audio characteristic criterion comprises a first root mean square (RMS) threshold level indicative of the user directing audio commands to the computing device; determining whether the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking; processing the audio signals through a voice recognition algorithm in response to determining both that the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device and that the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals satisfy the audio characteristic criterion when an RMS level of the audio signals does not exceed the first RMS threshold level; and not processing the audio signals through the voice recognition algorithm while either the audio signals do not satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device or the head muscle activity signals do not satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals do not satisfy the audio characteristic criterion when the RMS level of the audio signals exceeds the first RMS threshold level. - View Dependent Claims (7, 8, 9, 10)
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11. A computing device, comprising:
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means for receiving audio signals from a microphone; means for receiving head muscle activity signals from a muscle movement detector configured and positioned to measure head muscle activity of a user of the computing device contemporaneously with receiving audio signals from the microphone; means for determining whether the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device, wherein the audio characteristic criterion comprises a first root mean square (RMS) threshold level indicative of the user directing audio commands to the computing device; means for determining whether the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking; means for processing the audio signals through a voice recognition algorithm in response to determining both that the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device and that the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals satisfy the audio characteristic criterion when an RMS level of the audio signals does not exceed the first RMS threshold level; and means for not processing the audio signals through the voice recognition algorithm while either the audio signals do not satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device or the head muscle activity signals do not satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals do not satisfy the audio characteristic criterion when the RMS level of the audio signals exceeds the first RMS threshold level. - View Dependent Claims (12, 13, 14, 15)
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16. A non-transitory processor-readable medium having stored thereon processor-executable instructions configured to cause a processor of a computing device to perform operations comprising:
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receiving audio signals from a microphone; receiving head muscle activity signals from a muscle movement detector configured and positioned to measure head muscle activity of a user of the computing device contemporaneously with receiving audio signals from the microphone; determining whether the audio signals satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device, wherein the audio characteristic criterion comprises a first root mean square (RMS) threshold level indicative of the user directing audio commands to the computing device; determining whether the head muscle activity signals satisfy a muscle movement criterion indicative of the user of the computing device speaking; processing the audio signals through a voice recognition algorithm in response to determining both that the audio signals satisfy an audio characteristic criterion indicative of the user of the computing device speaking and that the head muscle activity signals satisfy a muscle movement criterion indicative of the user directing audio commands to the computing device, wherein the audio signals satisfy the audio characteristic criterion when an RMS level of the audio signals does not exceed the first RMS threshold level; and not processing the audio signals through the voice recognition algorithm while either the audio signals do not satisfy an audio characteristic criterion indicative of the user directing audio commands to the computing device or the head muscle activity signals do not satisfy a muscle movement criterion indicative of the user of the computing device speaking, wherein the audio signals do not satisfy the audio characteristic criterion when the RMS level of the audio signals exceeds the first RMS threshold level. - View Dependent Claims (17, 18, 19, 20)
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Specification