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:
Apr. 19, 2005
Filed:
Sep. 21, 1998
Vahe Jirair Balabanian, Nepean, CA;
Vahe Jirair Balabanian, Nepean, CA;
Nortel Networks Limited, St-Laurent, CA;
Abstract
The invention is a proposed extension to ISO/IEC standard 14496-6 (DMIF) and is partly described in ISO/IEC working document 14496-6 V2 WD 3.0. Specifically, the invention is a novel method for allowing the delivery of a streamed multimedia service across a heterogeneous network configuration without establishing a new session. In one embodiment, the invention is applicable to a scenario in which first and second terminals are directly connected to a first network and indirectly connected to a second network via respective access networks. Each terminal comprises terminal middleware and there is also a network middleware component connected to the terminals and to the access networks and to the second network. In essence, the method comprises the steps of establishing a session between the first and second terminals through the first network; transmitting a first plurality of multimedia streams from the first terminal to the second terminal across the first network, each stream being associated with a respective desired quality of service (QoS); measuring the QoS of each of the first plurality of streams; and if the measured QoS of one or more of the first plurality of streams is less than the respective desired QoS, transmitting said at least one or more of the first plurality of streams through the access networks and the at least one second network during said session.