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:
Jun. 20, 2017
Filed:
Sep. 16, 2013
Axis Ab, Lund, SE;
Mathias Bruce, Lund, SE;
Olle Blomgren, Staffanstorp, SE;
AXIS AB, Lund, SE;
Abstract
A device may correspond to a physical access controller in a distributed physical access control system. A method, performed by the device in a distributed system, may include detecting that another device in the distributed system has become unavailable; determining that a loss of consensus has occurred in the distributed system based on detecting that the other device has become unavailable; generating a list of available devices in the distributed system; and sending an alarm message to an administrative device, wherein the alarm message indicates the loss of consensus and wherein the alarm message includes the list of available devices.