US 12,425,810 B2
Method for determining proximity between mobile devices, method for managing a database, computer program product, and mobile device
Paul Chaffey, Munich (DE)
Assigned to NEARFACES UG, Munich (DE)
Appl. No. 18/867,837
Filed by NEARFACES UG, Munich (DE)
PCT Filed May 22, 2023, PCT No. PCT/EP2023/063663
§ 371(c)(1), (2) Date Nov. 21, 2024,
PCT Pub. No. WO2023/227534, PCT Pub. Date Nov. 30, 2023.
Claims priority of application No. 22174886 (EP), filed on May 23, 2022.
Prior Publication US 2025/0150785 A1, May 8, 2025
Int. Cl. H04W 4/00 (2018.01); H04L 61/45 (2022.01); H04L 61/4594 (2022.01); H04W 4/029 (2018.01); H04W 8/00 (2009.01); H04W 76/14 (2018.01)
CPC H04W 4/029 (2018.02) [H04L 61/4547 (2022.05); H04L 61/4594 (2022.05); H04W 8/005 (2013.01); H04W 76/14 (2018.02)] 15 Claims
OG exemplary drawing
 
1. Method for determining proximity between a first mobile device of a first user and a second mobile device of a second user, comprising:
searching, by the second mobile device, for short-range advertising broadcasts sent by mobile devices of other users;
receiving, by the second mobile device, among the short-range advertising broadcasts at least a first short-range advertising broadcast sent by the first mobile device, the first short-range advertising broadcast encoding a universally unique identifier (UUID) and a first user identifier being unique for the first user of the first mobile device;
decoding, by the second mobile device, the first short-range advertising broadcast received from the first mobile device to obtain the first user identifier;
checking, by the second mobile device, whether a pairing entry in a local database stored in the second mobile device exists for the first user identifier, wherein a pairing entry in the local database of the second mobile device is an entry associated with contact details stored for contacting the first user of the first mobile device; and
if the pairing entry exists, initiating, by the second mobile device, a user notification process to notify, by the second mobile device, the second user that the first user is located in proximity.