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US 11,146,909 B1Granted
Audio-based presence detection
AssigneeApple Inc.
InventorsStephen E. Pinto, Chad Himeda
Life of this patent
Estimating the term…
Abstract
A device can receive an audio signal and determine a measure of correlation between the audio signal and a microphone signal. The audio signal can be attenuated based on the measure of correlation. The audio signal can be used to drive one or more speakers of the device. Other aspects are described and claimed.
Claims22
A method for processing audio for a device, comprising
- receiving an audio signal that is used to drive one or more speakers of the device;
- determining a measure of correlation between a microphone signal and the audio signal;
- and
- attenuating the audio signal based on the measure of correlation between the microphone signal and the audio signal.
1 more element
A system, including:
- a processor;
- one or more speakers of a headworn device;
- a microphone that senses sound in a user environment and generates a microphone signal;
- and
- non-transitory computer-readable memory having stored therein instructions that when executed by the processor cause the processor to perform the following:
- receiving an audio signal that is used to drive the one or more speakers of the headworn device;
- determining a measure of correlation between the microphone signal, and the audio signal;
- and
- attenuating the audio signal based on the measure of correlation between the microphone signal and the audio signal.
6 more elements
A non-transitory computer-readable storage medium storing executable program instructions that when executed by a processor cause the processor to perform the following:
- receiving an audio signal that is used to drive one or more speakers of a device;
- determining a measure of correlation between a microphone signal, and the audio signal;
- and
- attenuating the audio signal based on the measure of correlation between the microphone signal and the audio signal.
1 more element
Dependencies are inferred from the claim text.