Multi-mode operation method for capacitive touch panel
US10824270B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Dec 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multi-mode operation method for a capacitive touch panel includes the steps of: using an initial mutual capacitance value of the panel as a reference value; obtaining a new mutual capacitance value as an original value after the initial step; comparing the original value with the reference value to obtain a detection value; comparing a current detection value with a previous detection value to obtain a first comparison result; when a touch cell has a detection value smaller than 0 if any of other touch cells in the vertical direction and the horizontal direction of the touch cell has a detection value greater than an effective touch standard value, obtaining a calculated value according to the detection value of the touch cell and an absolute value of the touch cell, as the detection value of the touch cell; and selecting between a normal mode and a waterproof mode as the operation mode according to the first comparison result and the detection values of all the touch cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.