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:
Jul. 22, 2014
Filed:
Mar. 29, 2010
Applicants:
M. Khaledul Islam, Kanata, CA;
Hao Xue, Kanata, CA;
Jin Kim, Kanata, CA;
Inventors:
Assignee:
Blackberry Limited, Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04J 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods are provided for transitioning between SIP and MIP. Mobile devices, upon detecting a new system, automatically attempt a MIP session to avoid the default position of SIP. A history is maintained of systems visited, and for systems that did not support MIP in the past, a MIP session is not attempted, but rather SIP is initiated from the start.