Digital MEMS loudspeaker
US9686610B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Sep 2, 2015 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Sep 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Devices related to digital MEMS loudspeakers are discussed. Such devices may include an air pressure source, MEMS valves coupled to the air pressure source, and an audio modulator coupled to the MEMS valve to receive an audio signal and to control the MEMS valves via a modulation signal to provide an acoustic output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.