| 摘要 |
PURPOSE:To perform the expansion processing based on data parallel processing with a simple constitution by providing a data converting part which moves a block to be expanded of data of one word, which is read out from a picture memory, to a position determined by a data expanding part. CONSTITUTION:2<n>-bits data of one word read out from a picture memory 1 is transposed by a data converting part 2, and upper 2<k>-bits are inputted to an expansion processing part 3. The expansion processing part 3 performs the expansion processing based on data from the data converting part 2 and outputs the result as 2<n>-bits expanded data. In this case, the M-bit parallel output of a shift register 4 is the address to the picture memory 1, and the n-bits parallel output of a shift register 5 is the control code of the data converting part 2. Thus, the expansion processing based on data parallel processing is performed with the simple constitution. |
