Structure of dual magnetic loop type receiver
US6754363B2 · kind B2 · utility
7Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2003 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jan 13, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dual magnetic loop type receiver is composed of a yoke molding, a ferrite yoke, an annular magnet, a magnetic pole member, a vibration panel, a ferrite core, and a circular plate. While the receiver is operated, the annular magnet and the ferrite core and the ferrite yoke cause the receiver to produce an inner magnetic loop that interacts with the inner voice coil, and an outer magnetic loop that interacts with the outer voice coil such that the receiver generates vibration and sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.