Protection of a speaker using temperature calibration
US9729986B2 · kind B2 · utility
25Cited by
15References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 7, 2013 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Feb 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R29/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one general aspect, a method can include calculating, at a calibration temperature of a speaker, a calibration parameter through a coil of the speaker in response to a first test signal, and can include sending a second test signal through the coil of the speaker. The method can also include measuring a parameter through the coil of the speaker based on the second test signal, and calculating a temperature change of the coil of the speaker based on the parameter and based on the calibration parameter at the calibration temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.