| 摘要 |
PURPOSE:To execute border processing simply and rapidly by detecting the end of picture data in each line, and on the basis of the detected result, inputting an optional value in each line of a window circuit. CONSTITUTION:An output data position selecting circuit 3 compares outputted data from an input data register 1 with sorted data from a sequence data register 2 and detects the position where both the data coincide with each other to inform the detected result to a register control circuit 5. An input data position selecting circuit 4 compares the input data with the sorted data and detects the position of the register 2 to which the input data are to be inputted to inform the detected result to the circuit 5. On the basis of these information, the circuit 5 removes the output data from the register 2 at first, inputs the input data to a proper position fixed by sorting logic and executes control for filling the register 2 with data. |
