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:
Jul. 01, 2025
Filed:
Sep. 15, 2023
Sesame Ai, Inc., San Francisco, CA (US);
Robert Konrad Konrad, San Francisco, CA (US);
Kevin Conlon Boyle, San Francisco, CA (US);
Gordon Wetzstein, Palo Alto, CA (US);
Nitish Padmanaban, Menlo Park, CA (US);
John Gabriel Buckmaster, San Jose, CA (US);
Sesame AI, Inc., San Francisco, CA (US);
Abstract
A differential camera system for object tracking. The system includes a co-aligned light source camera assembly (LSCA) and a controller. The co-aligned LSCA includes a light source and a differential camera sensor. The light source is configured to emit light along an optical path that is directed towards an eye box including an eye of a user. The differential camera sensor is configured to detect a change in brightness of the eye caused in part by the emitted light, asynchronously output data samples corresponding to the detected change in brightness, wherein the optical path is substantially co-aligned with an optical path of the differential camera sensor. The controller is configured to identify a pupil of the eye based on data samples output from the differential camera sensor resulting from the emitted light, and determine a gaze location of the user based in part on the identified pupil.