Patent · US Expired

Electronic pen, and control device and method thereof

US7382361B2 · kind B2 · utility

12Cited by

16References

23Claims

0Family size

Assignee

Anoto AB · SE

Inventors

Stefan Burström · Boden, SE
Mattias Bryborn · Lund, SE
Peter Gredinger · Skurup, SE
Ola Strömberg · Staffanstorp, SE
Magnus Horrdin · Visby, SE

Key dates

Filing date	Feb 12, 2003
Grant date	Jun 3, 2008
Priority date	—
Expiry date	Mar 12, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/03545
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An electronic pen has a force sensor whose electrical resistance varies in accordance with the amount of force applied to the pen stem of the pen. The force sensor is a modular unit with an electrode and a closure, which are mutually arranged in an essentially electrically insulated initial position. The closure, which conveniently is cantilevered on the electrode, is adapted to receive axial forces from the pen stem and thereby to be urged to an activated position in electrical contact with the electrode. The closure is also arranged, on relaxation of the axial forces, to automatically spring from the activated position back to the initial position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.