Acoustic waveguide
US9571923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2015 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Mar 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/403
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high frequency waveguide and methods relating to the design and use of the waveguide are described. The waveguide can include an acoustic input to receive an audio input signal from a high frequency driver, an acoustic output to broadcast sound, and a plurality of acoustic paths extending from the input to the output. A first path of acoustic paths is divided into two paths when a width of the first path is greater than ½ wavelength of a highest frequency at the input. In an example, each of the plurality of acoustic paths carries across all frequencies from the high frequency driver. In an example, the paths each have a first port receiving audio and a second port outputting audio, and the paths enlarge from the first port to the second port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.