Air-coupled surface wave structures for sound field modification
US6491134B2 · kind B2 · utility
7Cited by
6References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2000 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Jan 4, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/26
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A surface wave apparatus is disclosed having reduced sound attenuation across a surface along a known path having a path distance when compared to sound attenuation along a same path distance through air. The surface wave apparatus includes a plurality of cells defining a first surface. Sound presented at the first surface forms a surface wave over the surface and proximate thereto. Each cell includes four bounding walls and a bottom. Two of the bounding walls act to guide the sound within the known path and two are disposed across the known path to form a structure supporting formation of surface waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.