US 12,262,184 B2
Active noise cancellation method and apparatus
Xiaowei Yu, Shenzhen (CN); Yulong Li, Shenzhen (CN); Fan Fan, Shenzhen (CN); JingFan Qin, Shenzhen (CN); Xiaohong Yang, Shenzhen (CN); Yangshan Ou, Shenzhen (CN); and Yuhao Sun, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Nov. 14, 2022, as Appl. No. 17/986,549.
Application 17/986,549 is a continuation of application No. PCT/CN2021/084775, filed on Mar. 31, 2021.
Claims priority of application No. 202010407692.7 (CN), filed on May 14, 2020; and application No. 202011120314.7 (CN), filed on Oct. 19, 2020.
Prior Publication US 2023/0080298 A1, Mar. 16, 2023
Int. Cl. H04R 3/04 (2006.01); H04R 1/10 (2006.01)
CPC H04R 3/04 (2013.01) [H04R 1/1083 (2013.01); H04R 2420/07 (2013.01); H04R 2460/01 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method implemented by a headset having an active noise cancellation (ANC) function, wherein the method comprises:
identifying that the headset is in an ANC working mode;
receiving an instruction instructing the headset to obtain a first group of filtering parameters, wherein the first group of filtering parameters is different from a filtering parameter used by the headset before receiving the instruction;
obtaining the first group of filtering parameters, wherein the first group of filtering parameters is one of N1 groups of filtering parameters prestored in the headset, wherein the N1 groups of filtering parameters are configured to perform noise cancellation on ambient sound in N1 leakage states, wherein the N1 leakage states are formed by the headset and N1 different ear canal environments, wherein, in a current wearing state of the headset, for a same ambient noise, a first noise cancellation effect obtained when the first group of filtering parameters is applied to the headset is better than a second noise cancellation effect obtained when a second filtering parameter in the N1 groups of filtering parameters is applied to the headset, and wherein N1 is a positive integer greater than or equal to 2; and
performing noise cancellation using the first group of filtering parameters.