Devices and methods for generating input
US10521024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Apr 24, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Devices and methods are disclosed for generating input. In one implementation, a stylus is provided for generating writing input. The stylus includes an elongated body having a distal end, and a light source configured to project coherent light on an opposing surface adjacent the distal end. The stylus further includes at least one sensor configured to measure first reflections of the coherent light from the opposing surface while the distal end moves in contact with the opposing surface, and to measure second reflections of the coherent light from the opposing surface while the distal end moves above the opposing surface and out of contact with the opposing surface. The stylus also includes at least one processor configured to receive input from the at least one sensor and to enable determining three dimensional positions of the distal end based on the first reflections and the second reflections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.