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.

Date of Patent:
May. 20, 2008

Filed:

Apr. 07, 2004
Applicants:

Alan Frank Graves, Kanata, CA;

Jeffrey Fitchett, Kanata, CA;

Stephen Elliott, Allen, TX (US);

John Watkins, Ottawa, CA;

Dany Sylvain, Gatineau, CA;

Inventors:

Alan Frank Graves, Kanata, CA;

Jeffrey Fitchett, Kanata, CA;

Stephen Elliott, Allen, TX (US);

John Watkins, Ottawa, CA;

Dany Sylvain, Gatineau, CA;

Assignee:

Nortel Networks Limited, St-Laurent, Quebec, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); H04L 9/32 (2006.01); G06F 15/16 (2006.01); G06F 17/30 (2006.01); G06F 9/00 (2006.01); H04N 7/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system comprising a switching entity disposed between healthcare data processing resources and non-healthcare data processing resources. The switching entity is capable of operation in a first state in which an end user device is communicatively coupled to the healthcare data processing resources to support a healthcare session and a second state in which the end user device is communicatively coupled to the non-healthcare data processing resources to support a non-healthcare session. If the authentication request message is received while the switching entity is operating in the second state and a particular non-healthcare session is in progress, and the selected authentication entity is the healthcare authentication entity, initiating a memory purge at the end user device. Attacks on the healthcare data processing resources, both from the non-healthcare resources directly and via the end user device, are thus prevented.


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