Audio speaker protection system and method
US10021482B2 · kind B2 · utility
1Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2017 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | May 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audio device includes an audio amplifier configured to receive an input signal and generate a differential output signal. A first signal combiner circuit is configured to generate a time-convolution signal of an analog current signal and an analog voltage signal. The analog current signal corresponds to a current at the differential output signal, and the analog voltage signal corresponds to a voltage across the differential output signal. A second signal combiner circuit is configured to subtract the generated time-convolution signal from the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.