| 摘要 |
A convolution interleaver, which is included in a time interleaver and performs a convolution interleaving, comprises: a first switch for switching the connection destination of the input of the convolution interleaver to an end of any one of a plurality of branches; FIFO memories disposed in some of the plurality of branches except one branch in such a manner that the number of FIFO memories is different among said some of the plurality of branches; and a second switch for switching the connection destination of the output of the convolution interleaver to the other end of said any one of the plurality of branches. When a plurality of cells, the number of which is equal to the number of code words per frame, have passed, the first and second switches switch said connection destinations in such a manner that the branching of the destinations is performed by repeating the plurality of branches in turn. |
