| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve transmission quality. <P>SOLUTION: A first parity operation control unit performs parity operation of a first frame sequence in units of frame, and inserts the operation results into a next frame. A second parity operation control unit performs parity operation of a second frame sequence in units of frame, and inserts the operation results into a next frame. For the object frame of parity operation in the second frame sequence, the second parity operation control unit receives first parity data, i.e. the results of parity operation from the first parity operation control unit having the same values as those of the results of parity operation being inserted into the object frame, from the first parity operation control unit. Parity operation of the object frame is performed including the first parity data, and second parity data, i.e. the parity operation results of a previous frame in the second frame sequence which precedes the object frame by one frame. <P>COPYRIGHT: (C)2012,JPO&INPIT |
