Electromagnetic interference shielding construction in a radio telephone
US5271056A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1991 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Mar 6, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B15/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A frame construction for a radio telephone or the operating device of a radio telephone. The radio telephone comprises a frame on which printed circuit boards containing telephone electronics are secured on both sides of a substantially flat, electrically conductive frame plate. The frame plate together with ground foils of the printed circuit boards form EMI-shielding for the components located on the sides of the printed circuit boards which face the frame plate. The frame plate preferably has a raised edge to which a printed circuit board is secured. Radio telephone housing parts are located on the two sides of the frame plate to form the radio telephone housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.