Determining forces of contacts between styluses and objects
US9218073B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2013 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Dec 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04114
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus comprising a stylus with a dynamically switch tip shield is provided. The apparatus includes an elongated stylus housing having an end, a conductive tip disposed at least partially inside the stylus housing and extending from the end, a force sensor coupled to the conductive tip and configured to detect contact between the conductive tip and an object, a tip shield coupled with the stylus housing and extending from the end, and a switch coupled to the tip shield and the conductive tip. The force sensor may be an inductive sensor, a capacitive sensor, a piezo sensor, a force sensing resistor sensor, or an optical sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.