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:
May. 10, 2011
Filed:
Jan. 23, 2009
Mario Aguilar, Cary, NC (US);
Karen N Zachery, Raleigh, NC (US);
Ming Qian, Cary, NC (US);
Claudio Privitera, Albany, CA (US);
Mario Aguilar, Cary, NC (US);
Karen N Zachery, Raleigh, NC (US);
Ming Qian, Cary, NC (US);
Claudio Privitera, Albany, CA (US);
Teledyne Scientific & Imaging, LLC, Thousand Oaks, CA (US);
Abstract
A computationally efficient and robust approach for monitoring the instantaneous pupil response as a correlate to significant cognitive response to relevant stimuli derives data samples d(n) of the pupil diameter (area), v(n) of pupil velocity and a(n) of pupil acceleration from the pupillary response and segments the data samples into a sequence of time-shifted windows. A feature extractor extracts a plurality of spatio-temporal pupil features from the data samples from the response and baseline periods in each window. A classifier trained to detect patterns of the extracted spatio-temporal pupil features for relevant stimuli generates an output indicative of the occurrence of absence of a significant cognitive response in the subject to a relevant stimulus.