Methods and apparatus to detect a presence of a conductive object
US9501168B2 · kind B2 · utility
2Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2011 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Oct 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/962
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus determine a plurality of regions, each of the plurality of regions having a detected change in capacitance value that meets or exceeds a threshold value. In an embodiment, the method and apparatus fit a shape to the plurality of regions and determine another region, the other region being within the fitted shape and not having the detected change in capacitance value that meets or exceeds the threshold value. The method and apparatus may assign an assigned change in capacitance value to the other region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.