Coordinate input stylus
US6556190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Jan 30, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A stylus for use in a coordinate input system (e.g. digitizer tablet system) includes a finger wheel. The degree of rotation of the finger wheel by the user determines the extent to which a chosen graphical parameter (e.g. line thickness, color, shading, gray scale, etc.) is varied. Thus, a user can easily vary the graphical parameter while drawing by merely rotating the finger wheel about its fixed rotational axis.Preferably, rotation of the wheel causes an intermediate gear wheel with teeth thereon to rotate which in turn causes a potentiometer to detect the degree of rotation of the finger wheel. In alternative embodiments of this invention, a touchpad for inputting finger position and/or finger pressure information may be provided on the side of the stylus instead of the finger wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.