公开(公告)号：JPH10283119A

公开(公告)日：1998-10-23

申请号：JP8984497

申请日：1997-04-09

Applicant: IBM JAPAN

Inventor： TAMURA TETSUYA ,  DEMURA MASAYUKI ,  ITAGAKI HIROSHI ,  YAMADA MITSUHARU

IPC: G06F3/06 ,  G06F11/10 ,  G11B20/10 ,  G11B20/18 ,  H03M13/00 ,  H04L13/08

Abstract: PROBLEM TO BE SOLVED: To perform efficient data transfer for performing correction in real time by dynamically changing a transfer mode corresponding to the state of a decoder and adding one buffer constituted of plural banks further. SOLUTION: The transfer mode is dynamically changed corresponding to the state of the decoder and one buffer constituted of the two or more banks is newly added further. For instance, in a DVD reproduction system, signals read by a pickup are inputted to a DVD control block and sent to a decoding block 20. Data received in the decoding block 20 are error-corrected by the buffer, an MPU 20B and the decoder 20C provided inside the decoding block 20 connected by a common bus, decoded in real time and transmitted to a host side. In this case, in the decoding block 20, the buffer is constituted of a first buffer 20A-1 and a second buffer 20A-2. Then, the second buffer 20A-2 is provided with the two banks 26 and 28.