Voice sensing using multiple microphones
AssigneeBose Corporation
InventorsDaniel M. Gauger, Jr., Jahn Dmitri Eichfeld, Steven H. Isabelle, John Allen Rule
Life of this patent
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Abstract
A noise cancelling headset includes an earpiece, the earpiece including a feedback microphone, a feed-forward microphone, and an output driver. A first feedback filter receives an input from at least the first feedback microphone and produces a first filtered feedback signal. A first feed-forward filter receives an input from at least the first feed-forward microphone and produces a first filtered feed-forward signal. A first summer combines the first filtered feedback signal and the first filtered feed-forward signal and produces a first output signal. An output interface provides the first output signal as an output from the headset.
Claims20
A noise cancelling headset comprising:
- a first feed-forward microphone;
- a second feed-forward microphone;
- a first feedback microphone;
- a second feedback microphone;
- a first output driver configured to receive a first antinoise signal based on a combination of input from the first feed-forward microphone and the first feedback microphone;
- and
- a second output driver configured to receive a second antinoise signal based on a combination of input from the second feed-forward microphone and the second feedback microphone;
- wherein a voice signal of a user of the headset is generated using input from the first feedback microphone, the second feedback microphone, the first feed-forward microphone, and the second feed-forward microphone.
A method of generating a voice signal of a user of a noise cancelling headset that includes a first feed-forward microphone, a second feed-forward microphone, a first feedback microphone, and a second feedback microphone, the method comprising:
- receiving, at a first output driver, a first antinoise signal based on a combination of input from the first feed-forward microphone and the first feedback microphone;
- and
- receiving, at a second output driver, a second antinoise signal based on a combination of input from the second feed-forward microphone and the second feedback microphone;
- generating a voice signal of a user of the headset using input from the first feedback microphone, the second feedback microphone, the first feed-forward microphone, and the second feed-forward microphone.
Dependencies are inferred from the claim text.