Method for lost packet reconstruction and device for carrying out said method
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United States of America Patent
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May 11, 2010
Grant Date -
May 31, 2007
app pub date -
Sep 27, 2004
filing date -
Oct 23, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
The invention concerns a method for securing a data packet stream involving the following steps: arranging the packets to be sent in a matrix of D rows and L columns; to each row and each column of the matrix, applying an error correction function, the result of which is a correction packet; then sending the resulting correction packets in addition to the data packets. The invention also concerns a method for reconstructing lost packets in a data packet stream involving the following steps: arranging the received packets in a matrix of D rows and L columns, taking their sequence number into account; to each row and each column of the matrix containing at least one lost packet, applying a function for reconstructing missing packets using the received packets and the correction packet corresponding to the row or to the column. The invention also concerns the devices implementing these methods.
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