In-ear earphone
US8213668B2 · kind B2 · utility
8Cited by
0References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2008 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Dec 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1066
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An in-ear earphone includes a shell and a sound output device. The shell has a first engaging portion. The sound output device has a sound tunnel, a second engaging portion and a speaker. The speaker is disposed between the sound tunnel and the second engaging portion coaxially with the sound tunnel. The second engaging portion is movably engaged with the first engaging portion. The angle between the shell and the sound output device is adjustable so that the sound tunnel can be suitably plugged into individual user's ear canals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.