Providing a baseline capacitance for a capacitance sensing channel
US9746974B2 · kind B2 · utility
7Cited by
22References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2015 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Apr 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A capacitance-sensing circuit may include a channel input associated with measuring a capacitance of a unit cell of a capacitive sense array. The capacitance-sensing circuit may also include a capacitive hardware baseliner that is coupled to the channel input. The capacitive hardware baseliner may generate a baseline current using a baseline capacitor and may provide the baseline current to the channel input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.