Earphone
US10034076B2 · kind B2 · utility
2Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2015 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Oct 1, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2201/105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An earphone includes: a housing; a dynamic driver unit provided in the housing; and a sound conduit having a length of approximately 10 mm or more, the sound conduit being configured to transmit sound output from the dynamic driver unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.