Device for protecting an electronic printed circuit board
US8576536B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2011 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Oct 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/162
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device is provided for protecting an electronic printed circuit board, which includes at least two layers. The device includes on a layer, at least one conductive part uniformly spread on an insulator layer, the entirety comprising the conductive part and the insulator layer forming a capacitive support presenting a uniform electrical field. The capacitive support is placed roughly on the whole surface of one of the layers of the multi-layered electronic printed circuit board. The capacitive support is configured to deliver a reference capacitance. A capacitive measurement microprocessor detects a variation in capacitance. A transmitter is configured for transmitting a piece of information representing the variation in capacitance when an absolute value of a difference between the measured capacitance and the reference capacitance exceeds a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.