Active noise cancellation stability solution
AssigneeSiemens VDO Automotive Corporation
InventorsJohn F. Astorino, Ian R. McLean, Trevor Laack
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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.
Claims20
A method of noise attenuation comprising the steps of:
- generating a noise canceling signal;
- sensing for a system condition;
- and
- ceasing the generation of the noise canceling signal based upon the system condition.
A method of noise attenuation comprising the steps of:
- generating a noise canceling signal;
- sensing for an system condition;
- and
- ceasing the generation of the noise canceling signal based upon the system condition wherein the system condition relates to the relationship between engine noise and background sound.
An air induction system comprising:
- an air induction body;
- a speaker in proximity to said air induction body;
- at least one sensor for sensing an system condition;
- and
- a control unit with a noise cancellation feature in communication with said speaker and said sensor wherein said control unit disables said noise cancellation feature based upon said system condition.
Dependencies are inferred from the claim text.