Sound output apparatus
US10880637B2 · kind B2 · utility
1Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2019 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Jul 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a sound output apparatus including a driver configured to emit sound; a pipe including a plurality of holes that are aligned in a row in a side surface of the pipe and are configured to receive the sound emitted from the driver; and at least one cover covering the plurality of holes. Impedance values of the plurality of holes which are covered by the at least one cover are substantially equal to each other within a preset range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.