Title:
能動ノイズ制御システムの自動較正
Document Type and Number:
Japanese Patent JP7119210
Kind Code:
B2
Abstract:
A method of calibrating a feedback-based noise cancellation system of an ear device may involve obtaining a measured plant response of the ear device, obtaining a reference plant response value and determining a plant response variation between the reference plant response value and a value corresponding to the measured plant response. The method may involve obtaining a measured a coupler response of the ear device, obtaining a reference coupler response value and determining a coupler response variation between the reference coupler response value and a value corresponding to the measured coupler response. The method may involve determining, based at least in part on the plant response variation and the coupler response variation, a microphone signal gain correction factor and applying the microphone signal gain correction factor to ear device microphone signals that are input to a feedback loop of the feedback-based noise cancellation system.
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Inventors:
Ferrers, matthew
Fielder, Lewis Dee.
Hansen, Douglas Walter
Landor, Joshua Brandon
Brown, Sea. Philip
Wilson, ronda
Fielder, Lewis Dee.
Hansen, Douglas Walter
Landor, Joshua Brandon
Brown, Sea. Philip
Wilson, ronda
Application Number:
JP2021505228A
Publication Date:
August 16, 2022
Filing Date:
July 29, 2019
Export Citation:
Assignee:
Dolby Laboratories Licensing Corporation
International Classes:
G10K11/178; H04R1/10
Domestic Patent References:
| JP2013523014A | ||||
| JP6503897A |
Foreign References:
| WO2017129951A1 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki