Electronic device and control method therefor
US11886656B2 · kind B2 · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Sep 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04114
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An embodiment of the present invention provides a display device including: a touch sensor configured to sequentially transfer an electromagnetic signal having two or more frequencies to a stylus pen, and to receive an electromagnetic signal corresponding to the electromagnetic signal from the stylus pen; and a touch controller configured to operate the touch sensor by determining one of the two or more frequencies as the frequency of the electromagnetic signal depending on a change in the received electromagnetic signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.