In-ear earphone
US8891779B2 · kind B2 · utility
6Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2011 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | Aug 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided an in-ear earphone comprising a housing having at least one electroacoustic transducer, a control unit which outputs a test signal to the electroacoustic reproduction transducer for reproduction, and a tightness measuring unit for measuring a parameter representative of the tightness of a fit of the earphone in an ear canal. The control unit is adapted to output a second audio signal as confirmation of a tight fit of the earphone to the electroacoustic reproduction transducer for reproduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.