US 11,928,906 B2
Ultra-wide band device for access control reader system
Hans-Juergen Pirch, Feldkirchen (AT); Fredrik Carl Stefan Einberg, Huddinge (SE); Tomas Lars Jonsson, Rönninge (SE); Sylvain Jacques Prevost, Austin, TX (US); Jan Steffl, Senomaty (CZ); and Hans Gunnar Frank, Spånga (SE)
Assigned to ASSA ABLOY AB, Stockholm (SE)
Appl. No. 17/593,174
Filed by ASSA ABLOY AB, Stockholm (SE)
PCT Filed Mar. 24, 2020, PCT No. PCT/EP2020/058197
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2020/193566, PCT Pub. Date Oct. 1, 2020.
Claims priority of provisional application 62/906,995, filed on Sep. 27, 2019.
Claims priority of provisional application 62/823,341, filed on Mar. 25, 2019.
Prior Publication US 2022/0157106 A1, May 19, 2022
Int. Cl. G07C 9/29 (2020.01); G06K 7/10 (2006.01); G07C 9/00 (2020.01); H01Q 5/25 (2015.01); H04W 4/80 (2018.01); H04B 1/69 (2011.01)
CPC G07C 9/29 (2020.01) [G06K 7/10297 (2013.01); G06K 7/10366 (2013.01); G07C 9/00182 (2013.01); G07C 9/00309 (2013.01); H01Q 5/25 (2015.01); H04W 4/80 (2018.02); H04B 1/69 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A reader system for an access control system, the reader system comprising:
first and second antennas;
a first controller configured to communicate with a credential device using a first communication protocol via the first antenna to exchange a credential with the credential device; and
a second controller configured to communicate with the credential device using a second communication protocol via the second antenna to perform ranging for the credential device, wherein the second controller is configured to communicate with the first controller via a wireless communication link.