Asymmetry sound absorbing system via shunted speakers
US11812219B2 · kind B2 · utility
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11References
20Claims
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Key dates
| Filing date | Jul 23, 2021 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | May 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments for one-way sound absorbing systems are described herein. In one example, a sound absorbing system includes a waveguide having open ends for receiving an incoming acoustic wave and wall portions defining a first port and a second port. A first electroacoustic absorber is mounted to the first port and is electrically connected to a shunting circuit, while a second electroacoustic absorber is mounted to the second port and is electrically connected to an open circuit. The sound absorption of the system is directional dependent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.