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. 13, 2025
Filed:
Dec. 20, 2022
Applicant:
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Inventor:
Dong Yang, Milpitas, CA (US);
Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 45/34 (2020.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
H05B 45/34 (2020.01); G02B 27/0172 (2013.01);
Abstract
Aspects of the present disclosure are directed to systems and methods for controlling light emitting diodes (LEDs) in an electronic device, such as an artificial reality (XR) head-mounted display (HMD) or other XR device in an XR system. In an XR HMD, the LEDs can be positioned proximate to and/or facing the eyes and/or face of a user to illuminate such features for movement tracking and other purposes. Implementations can provide LED control circuitry that can continuously monitor the output current provided to the LEDs. If the integral of the output current over time exceeds a threshold current, implementations can latch the current to the LEDs.