Touch sensor with capacitive nodes having a capacitance that is approximately the same
US8860690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2011 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Nov 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960775
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a touch sensor has a first edge and a second edge approximately perpendicular to the first edge. The touch sensor includes a first plurality of electrodes approximately parallel to the first edge, and a second plurality of electrodes. Each of the second plurality of electrodes has a spine that is approximately parallel to the second edge and a plurality of conductive elements that are approximately parallel to the first edge and in physical contact with the spine. At least one electrode of the second plurality of electrodes is adjacent to the second edge. The touch sensor further includes a plurality of nodes. Each node is formed by a capacitive coupling between an electrode of the first plurality of electrodes and an electrode of the second plurality of electrodes. The capacitance of each node is approximately the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.