Tactilely identifiable earphones
US7991180B2 · kind B2 · utility
5Cited by
2References
21Claims
0Family size
Inventor
Key dates
| Filing date | Jul 21, 2006 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Feb 27, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to earphone apparatus having a first earphone and a second earphone. The apparatus also includes a distinguishing mechanism for distinguishing the first earphone from the second earphone by the touch of a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.