US 12,445,289 B2
Systems and methods for shared device access control
Chu Ly Tran, San Jose, CA (US); and Xun Chen, Freemont, CA (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Feb. 2, 2022, as Appl. No. 17/591,430.
Claims priority of provisional application 63/210,219, filed on Jun. 14, 2021.
Prior Publication US 2022/0400012 A1, Dec. 15, 2022
Int. Cl. H04L 9/32 (2006.01); H04L 9/08 (2006.01); H04L 9/40 (2022.01)
CPC H04L 9/3236 (2013.01) [H04L 9/0833 (2013.01); H04L 63/0861 (2013.01); H04L 63/104 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, at a first electronic device associated with a first root identifier, a second root identifier from a second electronic device, wherein the first root identifier is based on a first profile tree maintained at the first electronic device, and wherein the second root identifier is associated with a second profile tree maintained at the second electronic device;
determining that the first root identifier does not match the second root identifier;
sending, to the second electronic device, the first profile tree, wherein the first profile tree comprises a representation of currently-maintained user profiles at the first electronic device;
receiving, from the second electronic device, user profile update information, wherein the user profile update information corresponds to user profile information maintained at the second electronic device and determined to be more recent than corresponding user profile information at the first electronic device; and
updating a subset of the currently-maintained user profiles based on the user profile update information.