Patent · US Active

Optical surface using a reflected image for determining three-dimensional position information

US9195344B2 · kind B2 · utility

9Cited by

61References

11Claims

0Family size

Assignee

Neonode Inc. · SE

Inventors

Magnus Goertz · Lidingö, SE
Thomas Eriksson · Stockholm, SE
Joseph Shain · Rehovot, IL
Anders Jansson · Uppsala, SE
Niklas Kvist · Varedo, IT
Robert Pettersson · Åtvidaberg, SE
Lars Sparf · Ljungby, SE
John Karlsson · Brooklyn, US

Key dates

Filing date	Mar 23, 2011
Grant date	Nov 24, 2015
Priority date	—
Expiry date	Mar 4, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06F2203/04808
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A touch screen system including a reflective display surface, a camera mounted so as to capture an image of (i) the reflective display surface, (ii) a pointer approaching the reflective display surface, and (iii) a reflection of the pointer on the reflective display surface, and a processor coupled with the camera that determines a three-dimensional location of the pointer relative to the reflective display surface, based on the positions of the pointer and the reflection of the pointer in the image captured by the camera.

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