Stylus with a control
US10983611B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Jun 6, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/042
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensitive surface has emitters and detectors arranged around at least a portion of a periphery of the touch sensitive surface. The emitters produce optical beams that are received by the detectors. Touch events disturb the beams propagating toward the detectors. Variations in the beams resulting from the touch events are captured and are used to determine the touch events. A stylus disturbs beams when in contact with the touch sensitive surface. The stylus includes a control that can change the stylus from a default state to an alternative state, where the stylus disturbs the beams differently in each state. A controller determines the state of the stylus based on the beams received by the detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.