Electrode combining for noise determination
US9874983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Jan 20, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04112
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method of capacitive sensing, a first plurality of sensor electrodes of a sensor electrode pattern is coupled, in a first configuration, to input channels of a processing system. The sensor electrode pattern is associated with a sensing region. The first configuration of the first plurality sensor of electrodes is utilized to acquire a measurement of current. A noise environment is determined through analysis of the measurement of current. At least one subset of the first plurality of sensor electrodes is coupled, in a second configuration, to the input channels. The second configuration and the first configuration are different. The second configuration of the first plurality of sensor electrodes is utilized to acquire capacitive resulting signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.