Title:
ACTIVE NOISE CANCELLING METHOD AND ACTIVE NOISE CANCELLING EARPIECE
Document Type and Number:
WIPO Patent Application WO/2024/060458
Kind Code:
A1
Abstract:
An active noise cancelling method and an active noise cancelling earpiece, capable of improving the noise cancelling effect of the active noise cancelling earpiece. The active noise cancelling earpiece comprises: an in-ear microphone, an out-ear microphone, a loudspeaker and a filter. The method comprises: when the loudspeaker is playing audio data, determining a first primary path transfer function according to first out-ear data collected by the out-ear microphone and first in-ear data collected by the in-ear microphone; according to the first in-ear data, the first out-ear data and the first primary path transfer function, determining audio data received by the in-ear microphone; according to the audio data played by the loudspeaker and the audio data received by the in-ear microphone, determining a first secondary path transfer function; and, according to the first primary path transfer function and/or the first secondary path transfer function, updating the working coefficient of the filter into a first working coefficient.
Inventors:
LI GUOLIANG (CN)
WANG LELIN (CN)
WANG LELIN (CN)
Application Number:
PCT/CN2022/142987
Publication Date:
March 28, 2024
Filing Date:
December 28, 2022
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
H04R1/10
Foreign References:
| CN115396774A | 2022-11-25 | |||
| CN114040285A | 2022-02-11 | |||
| CN114666702A | 2022-06-24 | |||
| CN114944143A | 2022-08-26 | |||
| US20210400398A1 | 2021-12-23 | |||
| CN202211153118A | 2022-09-21 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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