Invention Grant
- Patent Title: Noise cancellation system
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Application No.: US14148533Application Date: 2014-01-06
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Publication No.: US09741333B2Publication Date: 2017-08-22
- Inventor: Amit Kumar , Wai Lang Lee , Jianping Wen
- Applicant: Avnera Corporation
- Applicant Address: US OR Beaverton
- Assignee: AVNERA CORPORATION
- Current Assignee: AVNERA CORPORATION
- Current Assignee Address: US OR Beaverton
- Agent Marger Johnson
- Main IPC: G10K11/16
- IPC: G10K11/16 ; G10K11/178

Abstract:
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.
Public/Granted literature
- US20150195646A1 NOISE CANCELLATION SYSTEM Public/Granted day:2015-07-09
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