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:
Mar. 31, 2020
Filed:
Oct. 16, 2018
Applicant:
National Taiwan University, Taipei, TW;
Inventors:
Shao-Yi Chien, Taipei, TW;
Yi-Heng Wu, Taipei, TW;
Po-Jung Chiu, Taipei, TW;
Liang Fang, Taipei, TW;
Assignee:
National Taiwan University, Taipei, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); G06F 3/01 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G06F 3/013 (2013.01); G02B 27/017 (2013.01); G02B 27/0172 (2013.01); G02B 27/0179 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0187 (2013.01);
Abstract
In a dual mode eye tracking method and system, an infrared (IR) ray is emitted to perform an IR tracking mode and visible light (VL) calibration. When a first error between a VL associated gaze position and an IR associated gaze position is less than a first threshold, the IR ray is turned off to perform a VL tracking mode. In a VL checking period, when a second error between a VL associated gaze position and an IR associated gaze position is less than a second threshold, the IR ray is turned off to continue the VL tracking mode.