Measurement and control of electromagnetic interference
US8502618B2 · kind B2 · utility
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10References
13Claims
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Key dates
| Filing date | Dec 12, 2008 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Mar 28, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The average EMR emissions of an electronic device may be reduced by implementing an electrically-active modulated termination. For example, the impedance may be continuously varied at one or more termination locations between two metal substructures to cause a like variation in the amplitude of each component of the EMR. According to one approach, cyclically varying the electrical impedance with a period of less than the time interval over which the EMR is measured will result in a reduction in the average measured EMR.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.