Behind-the-ear wireless device
US8648761B2 · kind B2 · utility
3Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2009 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Apr 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/51
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A behind-the-ear wireless device includes a main body casing including a wireless circuit housed therein and an audio transmission unit having a function of transmitting sound to an ear. The main body casing and the audio transmission unit are integrally connected to each other, whereby the wireless device can be fitted to the ear. An antenna element having a length of about half wave length is disposed in a hollow of the sound tube. A parasitic element having a length of about a half wave length is disposed in the main body casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.