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:
May. 28, 2013
Filed:
Jul. 05, 2010
Applicants:
Dapeng Gao, Burnaby, CA;
Ximing Zeng, Waterloo, CA;
Abhinav Gupta, Los Angeles, CA (US);
Alexander Shatsky, Waterloo, CA;
Inventors:
Dapeng Gao, Burnaby, CA;
Ximing Zeng, Waterloo, CA;
Abhinav Gupta, Los Angeles, CA (US);
Alexander Shatsky, Waterloo, CA;
Assignee:
Research In Motion Limited, Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 40/00 (2009.01);
U.S. Cl.
CPC ...
Abstract
Systems, methods and devices are disclosed useful for enabling wireless signals representing control messages to be sent between a wireless handheld telephony device and a call control server during an ongoing communication session when an out-of-band path becomes unavailable, the communication session being controlled by the call control server.