Touchscreen with coordinate values indicative of a tenth of a pixel
US11842009B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 22, 2022 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Feb 22, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4621
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for operating an electronic device includes detecting, by a touchscreen controller, a touch point on a touchscreen; determining, by the touchscreen controller, coordinates of the touch point; scaling, by the touchscreen controller, up the coordinates of the touch point to obtain scaled up coordinates by overwriting a reserved portion of a touch event protocol with additional information corresponding to the coordinates of the touch point; reporting, by the touchscreen controller, the scaled up coordinates of the touch point to an application processor; and determining, by the application processor, the coordinates of the touch point with an increased resolution by converting the scaled up coordinates into a floating point value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.