| 摘要 |
PURPOSE: A shaping filtering apparatus is provided to compute filter factors according to section by differentiating filter factor determination equations according to section. CONSTITUTION: A filter factor determination equation DB(20) stores an input value being shaping-filtered and a filter factor determination equation having the characteristic value of a hardware being shaping-filtered as a variable factor, wherein the filter factor determination equation varies according to three sections of T1, T2, and T3. A filter factor calculation unit(10) calculates a filter factor by substituting the input value being shaping-filtered for the filter factor determination equation. A shaping filter(30) filters the input value with the filter factor and outputs the filtered value.
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