Forward speaker noise cancellation in a vehicle
First Claim
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1. An apparatus, comprising:
- a first speaker positioned forward of a steering wheel of a vehicle;
a second speaker positioned forward of the steering wheel, wherein the first speaker and the second speaker generate a plurality of noise cancellation signals to acoustically cancel noise produced by operation of the vehicle;
a first controller configured to execute active noise cancellation to affect operation of the first speaker;
a second controller configured to execute active noise cancellation to affect operation of the second speaker; and
a master controller configured to adjust a signal calculation of at least one of the first controller and the second controller.
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Abstract
Systems and methods to cancel noise in a vehicle are disclosed. A first speaker is positioned forward of a steering wheel of a vehicle. The first speaker generates a first signal configured to acoustically cancel noise produced by operation of the vehicle. A second speaker is positioned forward of the steering wheel. The second speaker generates a second signal to acoustically cancel the noise produced by the operation of the vehicle. The first and the second speakers are capable of generating the first and the second signals independently of one another.
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Citations
20 Claims
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1. An apparatus, comprising:
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a first speaker positioned forward of a steering wheel of a vehicle; a second speaker positioned forward of the steering wheel, wherein the first speaker and the second speaker generate a plurality of noise cancellation signals to acoustically cancel noise produced by operation of the vehicle; a first controller configured to execute active noise cancellation to affect operation of the first speaker; a second controller configured to execute active noise cancellation to affect operation of the second speaker; and a master controller configured to adjust a signal calculation of at least one of the first controller and the second controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20)
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12. An apparatus, comprising:
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a speaker positioned forward of a steering wheel of a vehicle, the speaker configured, in response to a control signal, to generate a noise cancelling signal to acoustically cancel noise produced by operation of the vehicle; a plurality of microphones, each of the plurality of microphones configured to convert sensed sound into one of a plurality of signals; and a first controller in communication with the speaker and the plurality of microphones, the first controller configured to receive the plurality of signals and to execute active noise cancellation to generate the control signal; and a master controller configured to adjust a signal calculation of the first controller.
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13. A method of cancelling noise in a vehicle, the method comprising:
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positioning a first speaker forward of a steering wheel of a vehicle; positioning a second speaker forward of the steering wheel, wherein the first speaker and the second speaker generate a plurality of noise cancellation signals to acoustically cancel noise produced by operation of the vehicle; using a first controller to execute active noise cancellation to affect operation of the first speaker; using a second controller to execute active noise cancellation to affect operation of the second speaker; and using a master controller to adjust a signal calculation of at least one of the first controller and the second controller. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification