Patent · US Active

Electronic pen with retractable nib and force sensor

US8414210B2 · kind B2 · utility

13Cited by

27References

19Claims

0Family size

Assignee

Silverbrook Research Pty Ltd · AU

Inventors

Kia Silverbrook · Sydney, AU
Paul Lapstun · Sydney, AU
Matthew John Underwood · Sydney, AU
Robert John Brice · Sydney, AU
Zsolt Szarka-Kovacs · Sydney, AU

Key dates

Filing date	Jun 3, 2009
Grant date	Apr 9, 2013
Priority date	—
Expiry date	Dec 9, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/0321
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An electronic pen having a retractable nib for interacting with a surface. The pen comprises a slidably movable cartridge having a nib for contacting the surface, a retraction mechanism for retracting the cartridge, an actuator coupled to the retraction mechanism, a force sensor providing a reaction to an axial force transmitted from the cartridge, and a processor configured for generating force data indicative of a force detected by the force sensor. The retraction mechanism comprises a barrel for receiving the cartridge, which is adapted for seating the cartridge in either an extended position or a retracted position, whereby the axial force from the cartridge is transmitted to the barrel in the extended position. A biasing mechanism biases the cartridge towards the extended or retracted positions.

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