INTERLEAVE STAGE NUMBER VARIABLE AND ERROR CORRECTION TRANSMISSION SYSTEM

摘要

PURPOSE:To decrease the number of errors by varying an interleave stage number by employing an optimum interleave stage number against a burst error varying with the property of a line. CONSTITUTION:The initial value N of an interleave stage number is set as an interleave stage number INT. When the number of INT times of the error correction are present on an error correction and de-interleave circuit 7, INT addition information is imparted to a frame generating circuit 9 and when the error correction number is less than the INT number of times, INT subtraction information is imparted to the circuit 9. The information is given to the frame generating circuit 9 and sent from a transmission data output terminal 10 as a reception de-interleave control bit. The data is inputted to a reception data input terminal 11, a frame is seperated by a frame seperating circuit 12 and the extracted reception interleave control bit is referenced, and in the case of addition information, an error correction bit addition and interleave circuit 2 and a frame generating circuit 3 add 1 to the interleave stage number and in the case of subtraction information, 1 is decreased.