Active touch pen, touch input system and method of driving the same
US11320918B2 · kind B2 · utility
0Cited by
4References
15Claims
0Family size
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Key dates
| Filing date | Sep 18, 2019 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Nov 21, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0442
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An active touch pen, a touch input system and a method of driving the same are provided. The active touch pen includes a pen tip and a pen body, where a control circuit and a signal supply circuit are in the pen body. The control circuit is configured to detect a detection parameter value corresponding to an inclination angle of the pen body, and adjust, according to the detection parameter value, a signal amplitude of an output signal supplied by the signal supply circuit; an input end of the signal supply circuit is connected to an output end of the control circuit, to supply the output signal through the pen tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.