Touch-sensitive apparatus and method
US11726609B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2020 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Aug 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/047
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch-sensitive apparatus, the apparatus comprising: a touch-sensitive element comprising an array of electrodes having a first electrode and a second electrode, the second electrode spatially intersecting the first electrode at an intersection point; and measurement circuitry configured to: measure the mutual capacitance at the intersection point of the first and second electrodes; measure the self-capacitance of the first electrode, and measure the self-capacitance of the second electrode; and processing circuitry configured to: determine the presence of a touch on the touch-sensitive element on the basis of a comparison of the measured mutual capacitance at the intersection point to a first threshold and on the basis of a combination of the measured self-capacitance of the first electrode and the measured self-capacitance of the second electrode being greater than or equal to a second threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.