Method for broadcasting a data stream based on time lag in a network including a plurality of transmitters, computer program product, head-end system for implementing said method
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United States of America Patent
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Mar 25, 2014
Grant Date -
Mar 3, 2011
app pub date -
Feb 11, 2009
filing date -
Feb 19, 2008
priority date (Note) -
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Abstract
A method is provided for broadcasting a data stream in a network including at least two separate transmitters supplied by a head end. The stream is organized into data frames and includes at least one time marker. The method includes the following steps at the head end: obtaining a first time reference from an external source; obtaining a second time reference from the data stream received by the head end; comparing the first and second time references in order to determine a time shift between the first and second time references; and transmitting the time shift or at least one time marker modified on the basis of the time shift in order to compensate for a transport time variation between the head end and the transmitters.
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