Refresh rate switching method, electronic device, and system
US12300163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2022 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Jun 1, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of this application provide a refresh rate switching method, an electronic device, and a system. After being in a communication connection to a stylus, the electronic device may display a picture at a first refresh rate. The user may operate the electronic device, so that a refresh rate of the electronic device is switched from the first refresh rate to a second refresh rate. When the user holds the stylus again to approach a screen, the electronic device switches from the second refresh rate to a third refresh rate, where the first frequency is an integer multiple of the third refresh rate; and then after the electronic device sends a wake-up signal to the stylus, the stylus may intercept the wake-up signal, to send an uplink signal, and then the electronic device may receive the uplink signal from the stylus, and may keep signal synchronization with the stylus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.