US 11,956,588 B2
Contact detection via impedance analysis
Drew Stone Briggs, Seattle, WA (US); Morteza Khaleghimeybodi, Bothell, WA (US); Chuming Zhao, Bothell, WA (US); and John Raymond Brodie, Bend, OR (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Jan. 20, 2023, as Appl. No. 18/099,855.
Application 18/099,855 is a continuation of application No. 17/183,311, filed on Feb. 23, 2021, granted, now 11,570,538.
Prior Publication US 2023/0156396 A1, May 18, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 1/10 (2006.01); G01R 27/02 (2006.01); H04R 5/04 (2006.01)
CPC H04R 1/1041 (2013.01) [G01R 27/02 (2013.01); H04R 1/1083 (2013.01); H04R 5/04 (2013.01); H04R 2420/05 (2013.01); H04R 2460/13 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
providing, via a terminal of a wearable device, a voltage signal to an actuator, the actuator associated with the wearable device;
detecting an electrical current associated with the voltage signal provided to the actuator;
determining, based at least in part on the voltage signal and the electrical current, an impedance associated with the actuator;
inputting the impedance into a machine-learned model;
receiving, from the machine-learned model, an indication of a quality of a placement of the wearable device; and
outputting, based at least in part on the impedance, a notification via the wearable device, wherein the notification includes an indication of the quality of the placement of the wearable device.