Real-time spectral noise monitoring for proximity sensing device
US9606670B2 · kind B2 · utility
0Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for detecting noise with a capacitive sensing device. The includes driving a set of one or more sensor electrodes of a plurality of sensor electrodes with a sensing signal at a first frequency, receiving resulting signals based on the sensing signal for each of the one or more sensor electrodes driven, probing the set of one or more sensor electrodes to obtain a set of probing signals, and summing the probing signals of the set of probing signals to generate a noise-analysis signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.