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US 12,591,290 B2Granted
Techniques for power savings, improved security, and enhanced user perceptual audio
AssigneeAdvanced Micro Devices, Inc.
InventorEswar Chandra Saranu
Life of this patent
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Abstract
A technique for operating a device is disclosed. The technique includes attempting to detect presence of a user based on emitted and reflected audio signals; and controlling power state of the device based on the attempting.
Claims20
A method for operating a device, the method comprising:
- setting a time threshold and correlation amplitude threshold for user detection based on a security sensitivity that indicates a level of security of a surrounding environment;
- emitting audio from a speaker of the device and receiving, with a microphone of the device, audio signals reflected based on the emitted audio from one or more objects in an environment of the device;
- analyzing for presence of a user based on the reflected audio signals, the analyzing comprising determining whether a time of threshold correlation between the audio emitted from the speaker and the audio signals reflected from the one or more objects in the environment is below the time threshold, wherein the time of threshold correlation comprises a time at which the audio emitted from the speaker and the audio signals reflected from the one or more objects is above the correlation amplitude threshold;
- and
- controlling power state of the device based on the analyzing.
2 more elements
A device comprising:
- a microphone;
- a speaker;
- and
- a sound processing controller, configured to:
- set a time threshold and correlation amplitude threshold for user detection based on a security sensitivity that indicates a level of security of a surrounding environment;
- emit audio from the speaker and receiving, with the microphone, audio signals reflected based on the emitted audio from one or more objects in an environment of the device;
- analyze for presence of a user based on the reflected audio signals, the analyzing comprising determining whether a time of threshold correlation between the audio emitted from the speaker and the audio signals reflected from the one or more objects in the environment is below the time threshold, wherein the time of threshold correlation comprises a time at which the audio emitted from the speaker and the audio signals reflected from the one or more objects is above the correlation amplitude threshold;
- and
- control power state of the device based on the analyzing.
6 more elements
A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations comprising:
- setting a time threshold and correlation amplitude threshold for user detection based on a security sensitivity that indicates a level of security of a surrounding environment;
- emitting audio from a speaker of the device and receiving, with a microphone of the device, audio signals reflected based on the emitted audio from one or more objects in an environment of the device;
- analyzing for presence of a user based on the reflected audio signals, the analyzing comprising determining whether a time of threshold correlation between the audio emitted from the speaker and the audio signals reflected from the one or more objects in the environment is below the time threshold, wherein the time of threshold correlation comprises a time at which the audio emitted from the speaker and the audio signals reflected from the one or more objects is above the correlation amplitude threshold;
- and
- control power state of the device based on the analyzing.
2 more elements
Dependencies are inferred from the claim text.