Stylus pen with dynamic protocol selection for communication with a digitizer
US10671190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2015 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Oct 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/0384
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A stylus pen is disclosed that can detect touch signals from a digitizer and dynamically determine which digitizer (e.g., make/model) generated the touch signals. The stylus pen can then switch to one of a plurality of candidate protocols, without interaction from the user, so as to communicate with the digitizer. The digitizer need not explicitly communicate what protocol it supports to the stylus pen. Rather, the stylus pen analyzes the digitizer waveforms and compares the waveforms to known signatures to determine which digitizer is being used. The stylus pen can then dynamically set a protocol used to communicate with the digitizer that matches the protocol expected by the digitizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.