Protection of an NFC router against overvoltage
US10770891B2 · kind B2 · utility
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0References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2017 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Mar 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device for protecting a near field communication router against possible over-voltages picked up by an antenna. The device includes two voltage-limiter elements between terminals of the antenna and a ground. A circuit detects the presence of an electromagnetic field in the vicinity of an operating frequency of the router, and controls the limiter elements, the limiter elements being active by default.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.