发明申请
- 专利标题: Microphone calibration for active noise control system
- 专利标题(中): 主动噪声控制系统的麦克风校准
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申请号: US10406964申请日: 2003-04-04
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公开(公告)号: US20030198354A1公开(公告)日: 2003-10-23
- 发明人: Philip Edward Arthur Stuart
- 申请人: Siemens VDO Automotive, Inc.
- 申请人地址: null
- 专利权人: Siemens VDO Automotive, Inc.
- 当前专利权人: Siemens VDO Automotive, Inc.
- 当前专利权人地址: null
- 主分类号: A61F011/06
- IPC分类号: A61F011/06 ; G10K011/16 ; H03B029/00
摘要:
An active noise control system (100) and method compensates for changes in a microphone output to maintain accurate noise control. A calibration signal reflecting a desired microphone output is generated and stored in an active noise control module (106). During operation, the active noise control module (106) compares an actual microphone output signal with the calibration signal and compensates for any changes in the actual output signal before any noise compensation or cancellation function occurs.
公开/授权文献
- US07139400B2 Microphone calibration for active noise control system 公开/授权日:2006-11-21
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