Method and apparatus for controlling electromagnetic radiation emissions generated by electrical components
US6274807A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1998 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Nov 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is provided for reducing or eliminating the amount of electromagnetic radiation being emitted from a system assembly comprising one or more subassemblies which comprise electrical circuits which generate electromagnetic radiation. The method and apparatus of the present invention also reduce or prevent electromagnetic radiation generated by sources outside of the system assembly from interfering with and adversely affecting the electrical circuits comprised in the subassemblies. To achieve these goals, the present invention provides an electromagnetic compatibility (EMC) solution which comprises a plurality of lossy elements, and/or elements comprised of a combination of lossy and conductive material, to reduce electromagnetic radiation. Thus, the conventional EMC solution, which utilizes conductive gaskets on system assemblies and subassemblies, and which requires adequate contact between parts in order to be effective, is replaced by the EMC solution of the present invention, which is more effective at higher frequencies and does not have stringent contact requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.