Noise control system
US11468874B2 · kind B2 · utility
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18Claims
0Family size
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Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Dec 16, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/11
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A hybrid ANC system that can allow a feedback microphone to receive the same external noise as a feedforward microphone. A processor can generate an anti-noise signal based on what both microphones received to cancel a broader range of frequencies of the external noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.