Systems and methods for noise cancellation and power management in a wireless headset
First Claim
1. A method comprising:
- receiving an audio signal;
determining an amount of ambient noise present in the audio signal;
comparing the amount of ambient noise to a cutoff value; and
operating a noise cancellation system for a wireless headset based on the comparison of the amount of ambient noise to the cutoff value.
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Accused Products
Abstract
This includes systems and methods for noise cancellation and power management in a wireless headset. The wireless headset can perform noise cancellation by using two or more omni-directional microphones to generate a noise canceling “cone.” Audio signals received outside of the cone can be filtered out. An accelerometer can be used to determine the location of the wireless headset and the system can then properly position the cone to face the user'"'"'s voice and filter out other audio signals. Additionally, by monitoring the ambient noise, the system can save power by turning off the noise cancellation system when the amount of ambient noise is below a threshold value.
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Citations
26 Claims
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1. A method comprising:
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receiving an audio signal; determining an amount of ambient noise present in the audio signal; comparing the amount of ambient noise to a cutoff value; and operating a noise cancellation system for a wireless headset based on the comparison of the amount of ambient noise to the cutoff value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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receiving an audio signal in a wireless headset; transmitting the audio signal from the wireless headset to a device in communication with the wireless headset; processing the audio signal in the device; and controlling a noise cancellation system for the wireless headset based on the processed audio signal. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A system comprising:
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a wireless headset comprising an input device configured to receive an audio signal; and a processor that is configured to; determine an amount of ambient noise present in the audio signal; compare the amount of ambient noise to a cutoff value; and operate a noise cancellation system for the wireless headset based on the comparison of the amount of ambient noise to the cutoff value. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A system comprising:
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a wireless headset that is configured to; receive an audio signal; transmit the audio signal from the wireless headset; and a device in communication with the wireless headset that is configured to; receive the transmitted audio signal; process the audio signal; and control a noise cancellation system for the wireless headset based on the processed audio signal. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification