METHOD FOR SECURING A DVB-S2 TRANSMISSION
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United States of America Patent
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Issued Date -
Jul 2, 2015
app pub date -
Dec 30, 2014
filing date -
Dec 31, 2013
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Abandoned
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Abstract
A method for enciphering a DVB-S2 frame or super-frame, including at least a first type of frame modulated with a first modulation M1 and a second type of frame modulated with a second modulation M2, comprises at least the following steps: inserting into the DVB-S2 super-frame a number of dummy frames “n” of DVB-S2 structure of length n in order to obtain a structure ST of the same defined duration T, for several given configurations, the size of the dummy frame “n” is defined in the field 29 of the code word of the PLS of a DVB-S2 frame, a dummy frame “n” being composed of a PLHeader and of n−1 slots of 90 complex symbols; and applying an enciphering algorithm to the super-frame thus obtained.
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