| 摘要 |
An interpolation circuit capable of performing interpolation operation with a simple constitution. A 16-times oversampling from discrete data is performed by D frip-frops 4, 5 . A first convolution operation is performed by D frip-frops 4 through 11 and an adder 12 , on the result of which a second convolution operation is performed by D frip-frops 13 through 20 and an adder 21 . Data interpolated along a quadratic function curve interpolating the discrete data is obtained from the adder 21.
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