Active integrator for a capacitive sense array
US9268441B2 · kind B2 · utility
12Cited by
251References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Dec 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04111
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An active integrator for sensing capacitance of a touch sense array is disclosed. The active integrator is configured to receive from the touch sense array a response signal having a positive portion and a negative portion. The response signal is representative of a presence or an absence of a conductive object on the touch sense array. The active integrator is configured to continuously integrate the response signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.