The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 06, 2022
Filed:
Nov. 19, 2019
Applicant:
Assa Abloy Ab, Stockholm, SE;
Inventors:
Sona Singh, Täby, SE;
Felix Grape, Lidingö, SE;
Assignee:
ASSA ABLOY AB, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 25/01 (2006.01); G07C 9/00 (2020.01); G08B 25/10 (2006.01);
U.S. Cl.
CPC ...
G08B 25/016 (2013.01); G07C 9/00309 (2013.01); G08B 25/10 (2013.01); G07C 2009/00507 (2013.01);
Abstract
It is provided a method performed by a key device for supporting duress signalling. The method comprises the steps of: determining that a user is under duress; entering a wait state after the step of determining that a user is under duress; exiting the wait state and establishing a communication channel with a lock device, the communication channel being intended to be used for access control signalling; generating a duress signal; and transmitting, over the communication channel, the duress signal to the lock device.