Electric acoustic converter having a rear surface terminal
US6842530B2 · kind B2 · utility
1Cited by
0References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 6, 2001 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Jan 16, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/03
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an electric acoustic converter used as a speaker or a receiver of a mobile communication device such as a portable telephone or the like. In the electric acoustic converter according to the present invention, the size reduction and thinning of the thickness of the electric acoustic converter can be promoted by providing surface-like rear surface terminals 81 and 82 on the exposed surface 33 which is a rear surface of the yoke 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.