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:
Mar. 30, 2021
Filed:
Aug. 24, 2018
Sensormatic Electronics, Llc, Boca Raton, FL (US);
Miguel Galvez, Plaistow, NH (US);
Matthew Roberts, North Chelmsford, MA (US);
Stephen Tarmey, Leominster, MA (US);
Ashwin Reddy Lingannagari, Billerica, MA (US);
Sensormatic Electronics, LLC, Boca Raton, FL (US);
Abstract
A distributed transaction ledger (e.g. blockchain) is used to control access through access points in an access control system. During normal operation, access control devices (e.g. system controllers and door controllers) generate and broadcast transaction information to a validation network. The validation network maintains a distributed transaction ledger for the access control system, for example, by validating and distributing the transaction information across the validation network according to predetermined consensus criteria. The devices perform access control functions based on transaction information retrieved from the transaction ledger. Door controllers receive identification information from user devices (e.g. identification badges, mobile computing devices) and send the identification information to the validation network. A predetermined number of responding nodes generate verification information based on authorization information in the transaction ledger. If a predetermined proportion of the responding nodes indicate that the occupant is authorized, access is granted by the door controller.