Noise Mitigating Microphone System and Method
First Claim
1. A microphone system comprising:
- a base;
a first microphone apparatus coupled to the base, the first microphone apparatus capable of producing a first output signal having a noise component, the first microphone apparatus having a first back-side cavity;
a second microphone apparatus coupled to the base, the second microphone apparatus capable of producing a second output signal, the second microphone apparatus having a second back-side cavity, the first and second back-side cavities being fluidly unconnected; and
combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus, the combining logic using the second output signal to remove at least a portion of the noise component from the first output signal.
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Accused Products
Abstract
A microphone system has a base coupled with first and second microphone apparatuses. The first microphone apparatus is capable of producing a first output signal having a noise component, while the second microphone apparatus is capable of producing a second output signal. The first microphone apparatus may have a first back-side cavity and the second microphone may have a second back-side cavity. The first and second back-side cavities may be fluidly unconnected. The system also has combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus. The combining logic uses the second output signal to remove at least a portion of the noise component from the first output signal.
79 Citations
20 Claims
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1. A microphone system comprising:
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a base; a first microphone apparatus coupled to the base, the first microphone apparatus capable of producing a first output signal having a noise component, the first microphone apparatus having a first back-side cavity; a second microphone apparatus coupled to the base, the second microphone apparatus capable of producing a second output signal, the second microphone apparatus having a second back-side cavity, the first and second back-side cavities being fluidly unconnected; and combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus, the combining logic using the second output signal to remove at least a portion of the noise component from the first output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A microphone system comprising:
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a base; a first microphone apparatus coupled with the base and capable of producing a first output signal, the first microphone apparatus including a first microphone having a first mechanical response and a first back-side cavity; a second microphone apparatus coupled with the base and capable of producing a second output signal, the second microphone apparatus including a second microphone having a second mechanical response and a second back-side cavity, and the first and second back-side cavities being fluidly unconnected; and combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus, the combining logic combining the first and second output signals to produce an output audio signal, the first and second mechanical responses being effectively the same. - View Dependent Claims (11, 12, 13, 14)
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15. A method of producing an output audio signal from a microphone system, the method comprising:
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providing a base having a first microphone for generating a first microphone output signal in response to an input audio signal and a mechanical signal, the first microphone output signal having an audio component and a mechanical component, the base also having a second microphone for generating a second microphone output signal in response to the mechanical signal, the first and second microphones having back-side cavities that are fluidly unconnected to one another; and using information from the second microphone output signal to remove at least a portion of the mechanical component from the first microphone output signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification