Touch apparatus, touch controller thereof and noise detection method
US10289245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Mar 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A noise detection method including the following steps is provided. During different time periods, plural sets of driving signals are respectively transmitted to driving lines of the touch panel to drive sensing lines of the touch panel to generate plural sets of sensing signals. The plural sets of sensing signals are respectively received and calculated to obtain plural sets of summation signals. One set of summation signals includes first summation signals, and another set of summation signals includes second summation signals. A part or all of the first summation signals is replaced by the second summation signals. A signal value of a combination of the first and the second summation signals is calculated to obtain a summation thereof. The summation of the signal value of the combination is smaller than a summation of a signal values of the first summation signals before recombination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.