| 摘要 |
PURPOSE: To provide a high-efficiency interpolator, which unnecessitates any X3 multiplier and reduces costs, suitable for the address generator of digital video effect generator. CONSTITUTION: Concerning the interpolator which outputs an interpolated intermediate value at the intermediate data point of reference data points at prescribed intervals, the several fraction of differential value provided by subtracting the value of paired 1st reference data points adjacent to the reference data point from the values of 2nd reference data points is defined as an increment value for the intermediate value, and the respective plural interpolated values including one output value at least corresponding to data points outside the intervals of adjacent reference data points are led out of paired reference data values. |
