The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2011
Filed:
Nov. 29, 2007
Bengt Rehnstrom, Vasterhaninge, SE;
Bengt Rehnstrom, Vasterhaninge, SE;
Tobil Technology AB, Danderyd, SE;
Abstract
The invention relates to automatic eye tracking, wherein at least one imaging device () registers sequential image data (D) representing at least one eye () of a subject (). A processing unit () receives the image data (D), and based thereon, produces a position estimate of the at least one eye (). The processing unit () also produces a control signal (D)>which is received by at least one light source (). The at least one light source (), in turn, emits at least one light beam (L) being variable, such that a spatial location of an illumination area (A) towards which at least one light beam (L) is directed depends on the characteristics of the control signal (C). Specifically, the processing unit () produces the control signal (C) so that the illumination area (A) includes a position estimate of the at least one eye ().