Patent · US Active

Power management in an eye-tracking system

US9442566B2 · kind B2 · utility

5Cited by

5References

22Claims

0Family size

Assignee

Tobii AB · SE

Inventors

Henrik Eskilsson · Danderyd, SE
Mårten Skogö · Danderyd, SE
John Elvesjö · Stockholm, SE
Peter Blixt · Danderyd, SE

Key dates

Filing date	Jan 28, 2015
Grant date	Sep 13, 2016
Priority date	—
Expiry date	Jan 28, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG09G2354/00
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An imaging device adapted to provide eye-tracking data by imaging at least one eye of a viewer, wherein: the imaging device is switchable between at least an active mode and a ready mode; the imaging device is configured to use active eye illumination in the active mode, which enables tracking of a corneal reflection; and the imaging device is configured, in the ready mode, to reduce an illumination intensity from a value the illumination intensity has in the active mode, and to provide eye-tracking data which include eye position but not eye orientation.

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