Multiplex communications – Communication techniques for information carried in plural... – Assembly or disassembly of messages having address headers
Reexamination Certificate
2011-03-08
2011-03-08
Moe, Aung S (Department: 2473)
Multiplex communications
Communication techniques for information carried in plural...
Assembly or disassembly of messages having address headers
C370S468000, C370S470000, C370S471000, C370S472000, C370S473000
Reexamination Certificate
active
07903688
ABSTRACT:
A method and apparatus for routing voice packets through a communications network wherein the routing priority of the packets is based on a location of a packet within a sequence of transmitted voice packets, relative to one or more identified voice packets in the transmitted sequence. In one embodiment of the invention, the routing priority of a voice packet is based on the location of the packet in a sequence of packets relative to voice activity, such as the beginning, middle or end of a talk spurt. For example, the routing priority of the first several voice packets of a talk spurt is increased to compensate for the fact that there is less network jitter protection available at the receiver for these packets. In another embodiment, the routing priority of a voice packet may depend upon its location relative to a cellular handoff from one transmitter to another.
REFERENCES:
patent: 6282196 (2001-08-01), Lyons et al.
patent: 6556567 (2003-04-01), Murakami et al.
patent: 7006435 (2006-02-01), Davies et al.
patent: 7359979 (2008-04-01), Gentle et al.
patent: 2004/0022190 (2004-02-01), Davies et al.
patent: 2004/0022246 (2004-02-01), Davies et al.
patent: 2004/0196855 (2004-10-01), Davies et al.
RFC 3558, “RTP Payload Format for Enchanced Variable Rate Codecs (EVRC) and Selectable Mode Vocoders (SMV)”, Jul. 2003, Internet Engineering Task Force (IETF—Network Working Group), all pages.
Hiller et al., “RTP Payload format for EVRC”, Dec. 2000, Internet Engineering Task Force (IETF—Audio-Video Transport Working Group), all pages.
Pillai, K. et al., “Protocol Sensitive Dynamic Packet Classification Using DifferentiatedServices Code Points”, Oct. 8-9, 2004, Proceedings of the IEEE Emerging Technology Symposium 2004, all pages.
Sanneck, H. et al., “Selective Packet Prioritization for Wireless VoIP”, Sep. 2001, Fourth International Symposium on Wireless Personal Multimedia Communication (Aalborg, Denmark), all pages.
RFC 2475, “An Architecture for Differentiated Services”, Dec. 1998, Internet Engineering Task Force (IETF—Network Working Group), all pages.
U.S. Appl. No. 11/062,966, filed Feb. 22, 2005, Lee.
Kansar, A., et al., “Jitter-free audio playout over best effort packet networks,” inATM Forum International Symposium, New Delhi, India, 2001.
Yi, J.L., et al., Adaptive playout scheduling and loss concealment for voice communications over IP networks,IEEE Transactions on Multimedia, Apr. 2001.
Moon, S.B., et al., Packet audio playout delay adjustment: Performance bounds and algorithms,ACM/Springer Multimedia Systems, 6:17-28, Jan. 1998.
Pinto, J., et al., “An algorithm for playout of packet voice based on adaptive adjustment of talkspurt silence periods,” inProceedings of the IEEE Conference on Local Computer Networks, pp. 224-231, Oct. 1999.
Ramachandran, R., et al., “Adaptive playout mechanisms for packetized audtio applications in wide-area networks,” inProceedings of the IEEE Infocom, pp. 680-688, 1994.
Lee Minkyu
McGowan James William
Recchione Michael Charles
Alcatel-Lucent USA Inc.
Brown Kenneth M.
Duda Adam
Moe Aung S
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