Thermoacoustic device
US8019100B2 · kind B2 · utility
4Cited by
14References
25Claims
0Family size
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Key dates
| Filing date | Jun 25, 2009 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Jun 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/932
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a signal device, a power amplifier, and a sound wave generator. The power amplifier is electrically connected to the signal device. The power amplifier outputs an amplified electrical signal to the sound wave generator. The sound wave generator produces sound waves by a thermoacoustic effect. The amplified electrical signal is positive or negative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.