Automatic gain control for capacitive touch panel sensing system
US8487893B2 · kind B2 · utility
2Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2011 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Apr 2, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3089
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed are capacitive touchscreen or touch panel systems, devices and methods which increase the dynamic range of touches that may be detected on a capacitive touch screen or touch panel. Increased dynamic range is provided by employing automatic gain control methodologies and circuitry to process signals corresponding to individual mutual capacitance cells in a touch screen or touch panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.