Embedded speaker protection for automotive audio power amplifier
US9532142B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
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Key dates
| Filing date | May 19, 2016 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | May 19, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital circuit can be used in a speaker system. An intermediate node provides a speaker protection control signal. A first latch for receives an offset control signal. A first logic gate receives a play control signal, the offset control signal, and the speaker protection control signal. A second logic gate is coupled to the first latch for receiving the play control signal and the speaker protection control signal. A second latch is coupled to the first logic gate for providing a forced mute signal. A third latch is coupled to the second logic gate and to the intermediate node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.