| 摘要 |
A data distribution device includes a pair of first storage units, a second storage unit which includes a dual-port memory, a write unit which repeatedly writes drive data into one of the pair of first storage units and thereafter writes the remaining drive data and a read output unit which outputs the respective concurrently read drive data to the k corresponding drive circuits concurrently, where read addresses read from the dual-port memory are not overtaken by write addresses written to the dual-port memory during the period in which reading and writing of the drive data are being simultaneously performed with respect to the dual-port memory of the second storage unit.
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