Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within cabin or compartment of vehicle
Reexamination Certificate
2006-09-12
2006-09-12
Grier, Laura A. (Department: 2615)
Electrical audio signal processing systems and devices
Acoustical noise or sound cancellation
Within cabin or compartment of vehicle
C381S086000, C381S071110, C381S071120
Reexamination Certificate
active
07106866
ABSTRACT:
The method of noise attenuation comprises the steps of generating a noise canceling signal, sensing for an system condition, and ceasing the generation of the noise canceling based upon the system condition. This method is embodied in a system that includes an air induction body, a speaker in proximity to the air induction body, a sensor for sensing a system condition, and a control unit with a noise cancellation feature. The control unit is in communication with both the speaker and the sensor. Based upon the sensed system condition, the control unit may disable the noise cancellation feature.
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EP Search Report, Application No. EP01108288, date of completion Sep. 8, 2004.
Astorino John F.
Laak Trevor
McLean Ian R.
Grier Laura A.
Siemens VDo Automotive, Inc.
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