| 摘要 |
PURPOSE:To make the read speed of a picture elements string high within the permissible range of the access time of plural storage circuits and to read simultaneously plural storage circuits at a high speed by giving an input data and a write address in common to the plural storage circuits. CONSTITUTION:When the input picture elements string comes, it is written alternately in the storage circuits A, B at each input and when the write is finished, a write address is increased one by one. The even number order data is written in the storage circuit A and the odd number order data is written in the storage circuit B. In reading the data, when the picture element data corresponding to, e.g., 2.5, is desired, the data 2, 3 are read at the same time from each storage circuit and the data corresponding to the 2.5 is generated from the said data by interposition. Read addresses a, b fed to the storage circuits A, B are obtained by rounding simply off the LSB or rounding off it after 1 is added to the integral part of the read address.
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