US 11,893,849 B2
Providing physical access to a secured space based on high-frequency electromagnetic signaling
Thomas Szigeti, Vancouver (CA); David Hanes, Lewisville, NC (US); Gonzalo Salgueiro, Raleigh, NC (US); and Sebastian Jeuk, Munich (DE)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Sep. 13, 2021, as Appl. No. 17/474,002.
Prior Publication US 2023/0083426 A1, Mar. 16, 2023
Int. Cl. G07C 9/28 (2020.01); G07C 9/22 (2020.01); H04L 9/40 (2022.01); G07C 9/00 (2020.01)
CPC G07C 9/28 (2020.01) [G07C 9/00309 (2013.01); G07C 9/22 (2020.01); H04L 63/0853 (2013.01); G07C 2009/00769 (2013.01); H04L 2463/082 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
identifying a location of a device associated with an authorized user based on a first electromagnetic signal received by at least one first sensor from the device, the first electromagnetic signal having a frequency that is greater than or equal to 300 gigahertz (GHz);
determining that the location of the device is within a distance of a location of a threshold to a secured space;
based on determining that the location of the device is within the distance of the location of the threshold, determining that an authentication score indicating that an individual carrying the device is the authorized user is greater than a threshold score, the authentication score being associated with multiple authentication factors identified by the device;
based on determining that the authentication score is greater than the threshold score, unlocking and/or opening the threshold to the secured space;
determining, based on a second electromagnetic signal received by at least one second sensor from the device, that the location of the device has moved into the secured space at a first time;
determining, based on a third electromagnetic signal received by at least one third sensor from the device, that the location of the device has moved out of the secured space at a second time; and
based on determining that the location of the device has moved out of the secured space, storing an indication of the second time and an indication of at least one of the device or the authorized user.