US 12,433,517 B2
Devices, systems, and methods for calibrating an optical measurement device
Michael Henninger, Austin, TX (US); Ryan Field, Culver City, CA (US); and Han Yong Ban, Los Angeles, CA (US)
Assigned to HI LLC, Culver City, CA (US)
Filed by HI LLC, Los Angeles, CA (US)
Filed on Feb. 7, 2022, as Appl. No. 17/665,821.
Claims priority of provisional application 63/190,153, filed on May 18, 2021.
Claims priority of provisional application 63/151,273, filed on Feb. 19, 2021.
Prior Publication US 2022/0265174 A1, Aug. 25, 2022
Int. Cl. A61B 5/1495 (2006.01); A61B 5/1455 (2006.01)
CPC A61B 5/1495 (2013.01) [A61B 5/14552 (2013.01); A61B 2560/0233 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An optical measurement device configured to be worn by a user, the device comprising:
a light source configured to emit light directed at a target of the user;
a detector configured to detect arrival times for photons of the light after the photons are scattered by the target; and
a processing unit configured to:
determine, while the optical measurement device is being worn by the user, an instrument response function (IRF) associated with the optical measurement device, the determining the IRF comprising measuring a property associated with the optical measurement device while the optical measurement device is being worn by the user and determining the IRF based on the property associated with the optical measurement device,
generate, based on the arrival times of the photons at the detector, histogram data associated with the target, and
determine, based on the IRF and the histogram data, a property of the target.