Title:
固定応答フィルタによって部分的に提供されるフィードバック応答を有するフィードバック適応雑音消去（ＡＮＣ）コントローラおよび方法
Document Type and Number:
Japanese Patent JP6964581
Kind Code:
B2
Abstract:
A controller for an adaptive noise canceling (ANC) system simplifies the design of a stable control response by making the ANC gain of the system independent of a secondary path extending from a transducer of the ANC system to a sensor of the ANC system that measures the ambient noise. The controller includes a fixed filter having a predetermined fixed response, and a variable filter coupled together. The variable response filter compensates for variations of a transfer function of a secondary path that includes at least a path from a transducer of the ANC system to a sensor of the ANC system, so that the ANC gain is independent of the variations in the transfer function of the secondary path.
Inventors:
Lou, Yang
Hermann, Ryan A.
Jou, Dayon
Hermann, Ryan A.
Jou, Dayon
Application Number:
JP2018508706A
Publication Date:
November 10, 2021
Filing Date:
August 19, 2016
Export Citation:
Assignee:
Cirrus Logic International Semiconductor Limited
International Classes:
H03H17/02; G10K11/178; H03H17/00; H03H21/00; H04R3/00
Domestic Patent References:
| JP2010500880A |
Foreign References:
| US20100034398 | ||||
| US20140307887 | ||||
| US20100150369 | ||||
| US20100310086 |
Attorney, Agent or Firm:
Takeshi Oshio