| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system for encoding and decoding data for efficiently utilizing communication data generated from sources more than one by analyzing an error and a gap in the communication data. SOLUTION: Lost transmission packets are recovered using parity symbols. An encoder uses a key I selected from a key alphabet to produce output symbols. An output symbol with the key I is generated by determining a weight W(I) for the output symbol to be generated, selecting a number W(I) of the output symbols associated with the output symbol according to a function of I, and generating the output symbol's value B(I) from a predetermined value function F(I) of the selected W(I) input symbols so that erasures can be recovered without grouping input symbols into one block. An encoder can be called repeatedly to generate multiple output symbols. COPYRIGHT: (C)2005,JPO&NCIPI |
