Patent · US Active

Pointer tool

US8005275B2 · kind B2 · utility

8Cited by

26References

21Claims

0Family size

Assignee

IDEX ASA · NO

Inventors

Stig Mathiassen · Oslo, NO
Svein Mathiassen · Heggedal, NO
Jon Nysaether · Oslo, NO

Key dates

Filing date	Nov 28, 2007
Grant date	Aug 23, 2011
Priority date	—
Expiry date	May 2, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F2203/0339
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

This invention relates to a pointer tool for connecting to a display device, comprising a number of sensors elements being positioned on a two dimensional surface, for measuring a predetermined parameter at a surface, the measured quantity being sampled at a chosen rate, and calculating means for comparing the measurements from the sensor elements for detection of movements in two dimensions over the elements based on changes in the measured parameter, the time between the changes and the known relative positions between the sensor elements.

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