- 专利标题: Noise cancellation system
-
申请号: US14148533申请日: 2014-01-06
-
公开(公告)号: US09741333B2公开(公告)日: 2017-08-22
- 发明人: Amit Kumar , Wai Lang Lee , Jianping Wen
- 申请人: Avnera Corporation
- 申请人地址: US OR Beaverton
- 专利权人: AVNERA CORPORATION
- 当前专利权人: AVNERA CORPORATION
- 当前专利权人地址: US OR Beaverton
- 代理商 Marger Johnson
- 主分类号: G10K11/16
- IPC分类号: G10K11/16 ; G10K11/178
摘要:
A programmable Active Noise Compensation (ANC) system for an audio input includes a parameter store structured to store a number of various filter parameters. A mode of operation is selected that represents the type of environment the ANC system is operating in—feed-forward, feed-back, or combined feed-forward and feedback. Different filter parameters are retrieved from the parameter store based on the selected mode and desired operation. Audio inputs are sampled at a relatively high sample rate that matches inputs from a feed-forward and feedback microphone that may be present in the system. Parameters and instructions may be changed in the system responsive to changing conditions of the compensation system.
公开/授权文献
- US20150195646A1 NOISE CANCELLATION SYSTEM 公开/授权日:2015-07-09
信息查询