Pressure sensitive stylus
US10459538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04105
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A stylus device includes circuitry that includes hardware and/or software for detecting force applied to a tip of the stylus device and communicating the detected force to a host device. The detected force may be represented by a signal generated as a function of capacitance. A force response circuit modifies a force dependent capacitive response by increasing the force dependent capacitive response in a low force range relative to a high force range. A signal is generated based on the modified force dependent capacitive response and communicated to a host device or other communications transceiver of the host device. The host device generates digital ink with a weight (e.g., thickness) dependent on the detected force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.