Inductive excursion sensing for audio transducers
US11877126B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 13, 2021 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Feb 23, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R3/007
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques, methods, systems, and other mechanisms for measuring the excursion of a speaker while being actively driven. Measuring excursion can involve attaching a flexible printed coil (FPC), including a sense coil, to the speaker, and monitoring an induced current as produced though the sense coil, and further detecting that violation of an excursion limit for the speaker may likely occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.