Sterne, Kessler, Goldstein & Fox, PLLC
Multicast group management technique
In order to flexibly manage and broadcast content to electronic devices in a multicast group, a multicast group management protocol allows one or more multicast group masters to be specified. In addition to controlling membership in the multicast group, a multicast group master can define or specify a multicast session, in which content from one or more sources is broadcast to at least a subset of the electronic devices or sinks in the multicast group. The multicast group management protocol supports concurrent broadcasts of content to different multicast sessions. Moreover, the broadcasts in the different multicast sessions may have different: priorities, encoding techniques, quality-of-service policies, reliability, and/or number of parity bits. For example, the different encoding techniques may include different layers in H.264 Scalable Video Coding. Alternatively or additionally, the different number of parity bits may be associated with application layer forward error correction.
Apple Inc.
H
H04W
inventional
Yong Guoqing Christiaan A. Chiu Ngok E. Su Khiong Eric San Fung Gregory
Liu Li Hartman Wong Yong Lee Chapman