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:
Dec. 13, 2011
Filed:
Mar. 17, 2006
Muhammad Khaledul Islam, Ottawa, CA;
Jeffrey Wirtanen, Ottawa, CA;
Jean-philippe Cormier, Ottawa, CA;
Dimitrios Prodanos, ottawa, CA;
Muhammad Khaledul Islam, Ottawa, CA;
Jeffrey Wirtanen, Ottawa, CA;
Jean-Philippe Cormier, Ottawa, CA;
Dimitrios Prodanos, ottawa, CA;
Research in Motion Limited, Waterloo, CA;
Abstract
A method and apparatus to restore always on connectivity to user equipment, the method having the steps of: monitoring whether the user equipment has transitioned to a network that supports concurrent voice and data; performing, upon the monitoring step detecting the transition, a routing area update; checking whether the user equipment was in a voice call at the time of the transition, and if yes, sending a data packet to the network.