Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Reexamination Certificate
2007-03-27
2007-03-27
Pendleton, Brian T. (Department: 2615)
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
Counterwave generation control path
C381S071120, C244S00100R
Reexamination Certificate
active
10083774
ABSTRACT:
A system and method reduces undesired noise or vibration in a vehicle. The ambient vibration is measured and command signals are generated over time. The command signals are generated based upon the measured vibration and based upon a control weighting. By varying the control weighting over time, the maximum possible performance is always obtained subject to the saturation constraints.
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Fuller James W.
Goodman Robert K.
MacMartin Douglas G.
Millott Thomas A.
Carlson & Gaskey & Olds
Pendleton Brian T.
Sikorsky Aircraft Corporation
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