Patent ID: 7971129
Filing Date: 2011-06-28
Classification: H03M,H04L

Abstract:
1. A method of encoding data for transmission from a source to a destination over a communications channel, the method comprising: obtaining an ordered set of source symbols representing the data to be encoded using the generated output symbols and an encoding for the data; generating FEC repair data according to a first code; generating FEC repair data according to a second code, the second code being more complex than the first code; and sending the source symbols, the first set of FEC repair data and the second set of FEC repair data, such that received data that includes some or all of the sent data is decodable and the original source block of data is recoverable, wherein the first and second sets of FEC repair data are constructed such that the original source block of data is recoverable with less information than would be required if using the received FEC repair data from only one of the two FEC codes and the FEC decoder for that FEC code and the received original source block data.