Sensor pattern with signal-spreading electrodes
US9495050B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jun 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/955
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A capacitive sensor array may include a plurality of row sensor electrodes and a column sensor electrode capacitively coupled with each of the plurality of row sensor electrodes to form a plurality of unit cells. For each row sensor electrode, a unit cell that is associated with the column sensor electrode and the row sensor electrode comprises an area where a capacitance between the column sensor electrode and the row sensor electrode is greater than any other capacitance between the column sensor electrode and a different row sensor electrode. The capacitive sensor array further includes a first plurality of dummy electrodes, where each of the first plurality of dummy electrodes is capacitively coupled with the column sensor electrode and two adjacent row sensor electrodes of the plurality of row sensor electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.