Capacitive touch sensors
US8937611B2 · kind B2 · utility
2Cited by
20References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2013 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Dec 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M11/20
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A touch data set is acquired via signals from each sensing node in a capacitive sensor array having a plurality of sensing nodes. Touch presence and location on the capacitive sensor array is determined from the touch data set. In subsequent sampling periods while presence of a touch continues to be detected, touch data sets may be acquired from respective subsets of the sensing nodes, each subset being located at and adjacent to the touch location determined in the preceding sampling period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.