Active noise cancellation method and apparatus
US12262184B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Nov 14, 2022 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Apr 13, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An active noise cancellation (ANC) method applied to a headset includes obtaining a first group of filtering parameters, and performing noise cancellation using the first group of filtering parameters. The first group of filtering parameters is one of N1 groups of filtering parameters prestored in the headset. The N1 groups of filtering parameters are respectively used to perform noise cancellation on ambient sound in N1 leakage states. The N1 leakage states are formed by the headset and N1 different ear canal environments. N1 is a positive integer greater than or equal to two.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.