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. 14, 2011
Filed:
Nov. 24, 2004
David Bajar, Kitchener, CA;
Herb A. Little, Waterloo, CA;
James Godfrey, Waterloo, CA;
Allan David Lewis, New Dundee, CA;
Wen Gao, Waterloo, CA;
Marc Plumb, Kitchener, CA;
Michael Kenneth Brown, Kitchener, CA;
Graeme Whittington, Waterloo, CA;
Neil Patrick Adams, Waterloo, CA;
David Bajar, Kitchener, CA;
Herb A. Little, Waterloo, CA;
James Godfrey, Waterloo, CA;
Allan David Lewis, New Dundee, CA;
Wen Gao, Waterloo, CA;
Marc Plumb, Kitchener, CA;
Michael Kenneth Brown, Kitchener, CA;
Graeme Whittington, Waterloo, CA;
Neil Patrick Adams, Waterloo, CA;
Research In Motion Limited, Waterloo, CA;
Abstract
In one embodiment, a scheme is provided for securing a personalized indicium assigned to a mobile communications device. Upon detecting at a network node that an address associated with the mobile communications device has changed, a challenge-and-response procedure is negotiated between the mobile communications device and the network node for authenticating the personalized indicium using a shared authentication key.