Receiver-transmitter of communication equipment
US6072887A · kind A · utility
12Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1998 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Mar 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R11/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A receiver-transmitter for communication equipment is composed of a yoke iron, a magnet and a magnetic pole piece. The yoke iron has a recess in which the magnet and the magnetic pole piece are located. The recess is provided in the bottom thereof with a plurality of locating columns, whereas the magnetic pole piece is provided with a plurality of locating slots. The magnet is securely located in a locating space which is confined by the locating columns. The magnetic pole piece is located at the top of the magnet such that the locating slots of the magnetic pole piece are engaged with the locating columns of the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.