| 摘要 |
PURPOSE:To attain the vertical interpolation, by providing a main memory splitting a screen into MXN blocks and storing each data, and a submemory storing data of one horizontal block train. CONSTITUTION:The data of each block of the screen is stored in the main memory 7, and in reading out the data from the main memory 7, the data of one horizontal block train on or under the block read out in the sub-memory 10 is stored, the data from the main memory 7 and the sub-memory 10 is interpolated to form a correcting data. The readout of data from the main memory 7 and the sub-memory 10 is controlled with a signal generated from a control signal generator 19 through an address bus 8. The content of the sub-memory 10 is read at the blanking period from the main memory 7 through a data bus 9. |
