Capacitive sensor system with multiple transmit electrodes
US10108292B2 · kind B2 · utility
2Cited by
44References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2016 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Aug 24, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A capacitive sensor system has a receiving electrode with a capacitive coupling to a ground plane or ground electrode, a first transmission electrode arranged between the receiving electrode and the ground plane and having a size with respect to the receiving electrode such that the transmission electrodes covers a surface area of the receiving electrode, and a second transmission electrode arranged adjacent to the receiving electrode and which is not coupled with the first transmission electrode, wherein the second transmission electrode is driven with a higher alternating voltage than the first transmission electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.