System for filtering mechanical coupling from a microphone signal
US11462230B1 · kind B1 · utility
3Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 8, 2021 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Feb 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S7/304
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An audio system that includes an IMU or accelerometer in physical proximity to a microphone and a driver. The signal generated by the IMU or accelerometer may be used to filter the audio signal generated by the microphone with respect to mechanically coupling between the driver outputting sound and the microphone via a shared structure. In some cases, an accelerometer may be incorporated into a package of the microphone to provide analog-based filtering prior to converting the audio signal of the microphone to a digital format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.