Dynamic SDP update in IPDC over DVB-H
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United States of America Patent
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Jan 1, 2013
Grant Date -
Jul 10, 2008
app pub date -
Sep 12, 2007
filing date -
Sep 14, 2006
priority date (Note) -
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Abstract
Various embodiments of present invention relate to the synchronization of an SDP stream to the media stream. In various embodiments, the SDP-consuming application initiates a FLUTE receiver and retrieves new versions of the SDP file. The terminal also retrieves information from the RTCP layer about the current sender time. The sender time is indicated as an NTP timestamp in RTCP sender reports. The receiver indicates to the player that the new SDP file will be valid after some time period. Various embodiments of the present invention also cover the behavior of a terminal upon receiving an SDP update. Still further, various embodiments of the present invention provides for richer out-of-band ESG delivery than conventional systems, permitting more meaningful session updates.
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