Synchronization method, wireless communication chip, touch control chip, and driving chip
US11474636B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2021 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Sep 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04114
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present application provides a synchronization method. The method includes: transmitting, by a first wireless communication chip of the electronic device, a synchronization signal to a second wireless communication chip of the active pen and simultaneously transmitting a first indication signal to a touch control chip of the touch screen; where the first indication signal is used to instruct the touch control chip to detect a driving signal transmitted by the active pen after from reception of the first indication signal, the second wireless communication chip is further configured to transmit a second indication signal to a driving chip of the active pen while receiving the synchronization signal, the second indication signal is used to instruct the driving chip to transmit the driving signal after from reception of the second indication signal, the second preset duration is less than the first preset duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.