Noise reduction method and system of capacitive multi-touch panel
US9170681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2013 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Jan 11, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A noise reduction system includes a driving device, a sensing device, a first switch, a second switch, and a controller. The driving device has a plurality of drivers for generating touch driving signals. The sensing device has a plurality of sensors for detecting whether there is an external object approached and generating touch sensing signals. The first switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The second switch is provided for electrically connecting the plurality of drivers and the plurality of sensors to the capacitive touch panel. The controller configures the first switch and the second switch to perform a first direction driving and second direction sensing, and configuring the first switch and the second switch to perform a second direction driving and first direction sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.