Invention Grant
- Patent Title: Active noise control system and method
- Patent Title (中): 主动噪声控制系统及方法
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Application No.: US13763207Application Date: 2013-02-08
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Publication No.: US09240176B2Publication Date: 2016-01-19
- Inventor: Eli Tzirkel-Hancock , Igal Bilik , Moshe Laifenfeld , Scott M. Reilly
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: G10K11/00
- IPC: G10K11/00 ; G10K11/178

Abstract:
Methods and systems are provided for active noise control in a vehicle. The system includes a position sensor for sensing an occupant position. A microphone receives audible noise and generates an error signal corresponding to the audible noise. A first controller is configured to receive the error signal from the microphone and generate a modified error signal by modifying the error signal based on the occupant position with respect to the microphone. A second controller is in communication with the first controller and configured to generate an anti-noise signal based at least in part on the modified error signal. The system also includes a loudspeaker in communication with the second controller for receiving the anti-noise signal from the second controller and producing sound corresponding to the anti-noise signal to negate at least some of the audible noise.
Public/Granted literature
- US20140226831A1 ACTIVE NOISE CONTROL SYSTEM AND METHOD Public/Granted day:2014-08-14
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