US 11,720,173 B2
Artificial reality device headset DONN and DOFF detection
Dong Yang, Milpitas, CA (US); Qiang Zhang, San Carlos, CA (US); Wen Song, Sammamish, WA (US); and Theresa Loney Casarez, San Carlos, CA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Dec. 15, 2022, as Appl. No. 18/66,391.
Application 18/066,391 is a continuation of application No. 17/559,429, filed on Dec. 22, 2021, granted, now 11,586,283.
Prior Publication US 2023/0195221 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/01 (2006.01); G01C 21/16 (2006.01)
CPC G06F 3/013 (2013.01) [G01C 21/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for determining, based on inputs from multiple detection systems, when an artificial reality device headset has been doffed, the process comprising:
when an eye tracking/face tracking (ET/FT) system is active:
determining whether a current ET/FT reading indicates a loss of eye or face tracking for a threshold amount of time reading; and
in response to the current ET/FT reading indicating the loss of eye or face tracking for the threshold amount of time, changing the artificial reality device headset to being in a doffed state; and
when an ET/FT system is not active:
determining A) whether a current proximity reading is below a proximity doffed threshold or B) whether a current Inertial Measurement Unit (IMU) reading is below an IMU doffed threshold; and
in response to either A) or B) being true, changing the artificial reality device headset to being in the doffed state.