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:
Jan. 27, 2015
Filed:
Nov. 29, 2012
Applicant:
Assa Abloy Ab, Stockholm, SE;
Inventors:
Scott B. Guthery, Chestnut Hill, MA (US);
Mark Robinton, Somerville, MA (US);
Michael Lawrence Davis, Amherst, NY (US);
David Andresky, Lafayette, CO (US);
Assignee:
Assa Abloy AB, , SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01); H04L 29/06 (2006.01); G06F 21/60 (2013.01); H04L 9/12 (2006.01); H04L 9/06 (2006.01); H04L 9/16 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 63/08 (2013.01); G06F 21/606 (2013.01); H04L 9/12 (2013.01); H04L 63/0428 (2013.01); H04L 63/04 (2013.01); H04L 9/0662 (2013.01); H04L 9/0637 (2013.01); H04L 9/16 (2013.01); H04L 9/3226 (2013.01); H04L 2209/805 (2013.01);
Abstract
The present invention is directed toward secure access systems. Specifically, a method and system is provided that enhances the security of unidirectional communication protocols used in access control systems, such as the Wiegand protocol. The enhancements may include obfuscation of data, a two-way packet-mode communications, and blind synchronization of pseudo-random number generators.