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:
Apr. 23, 2024
Filed:
Jan. 31, 2023
Pixieray Oy, Espoo, FI;
Ari Pitkänen, Vantaa, FI;
Klaus Melakari, Espoo, FI;
Pixieray Oy, Espoo, FI;
Abstract
An eye-tracking system () comprises light source(s) (); means () for changing direction of light beam () emitted by light source(s), wherein said means is to be employed to steer light beam to scan surface of user's eye (); and light sensor(s) () that is to be employed to sense reflected light signals. Said means is to be employed to detect when light beam is incident upon pupil of user's eye, based on variations in at least one parameter of reflected light signals; and steer light beam to be incident upon centre of pupil, wherein light beam is determined to be incident upon centre of pupil when minimum value from amongst values of at least one parameter of reflected light signals. Eye-tracking system further comprises processor(s) () configured to determine specific direction at which light beam is incident upon centre of pupil; determine position of pupil, based on specific direction, distance of pupil from light source(s), and position of light source(s); and determine gaze direction of user's eye.