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:
Feb. 24, 2015
Filed:
Sep. 13, 2000
Bradley Cain, Cambridge, MA (US);
Thomas P. Hardjono, Winchester, MA (US);
Bradley Cain, Cambridge, MA (US);
Thomas P. Hardjono, Winchester, MA (US);
Rockstar Consortium US LP, Plano, TX (US);
Abstract
A system, device, and method for distributing access control information in a communication system uses a reliable multicast mechanism for distributing access control information by a main server to multiple access control devices. A dedicated multicast group is established for distributing the access control information, and each access control device joins the dedicated multicast group. A reliable multicast mechanism is used to distribute the access control information to the multicast group members. Each access la control device obtains the access control information using the reliable multicast mechanism, and stores the access control information in a database for later use in making receiver access control decisions.