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:
Jan. 06, 2026
Filed:
Dec. 14, 2022
Battelle Memorial Institute, Columbus, OH (US);
BATTELLE MEMORIAL INSTITUTE, Columbus, OH (US);
Abstract
To determine impairment due to drugs or alcohol, an image capture component captures video of at least a head of a test subject. Cropped head images of the head of the test subject are extracted from sequential images of the video. For each cropped head image, a gaze angle of the test subject is determined from the cropped head image. The determined gaze angles are analyzed to determine horizontal nystagmus and/or angle of onset of nystagmus. A level of impairment of the test subject is determined from the horizontal nystagmus and/or angle of onset of nystagmus. A visual representation of the level of impairment of the test subject is generated on an associated display.