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专利名称：Scaling method by using dual point slope
control (DPSC)
发明人：Kun-Nan Cheng申请号：US103604申请日：20030210
公开号：US200301871A1公开日：20031002
专利附图：
摘要：A method for scaling a source data to a destination data, wherein two referencepoints of the source data denoted as 0 and 1 by quantities f(0) and f(1) are used. Thequantity f(x) is used to describe the destination data with a range of 0≦x<1, and f(x) is a
quadratic form with three coefficients a, b, c for f(x)=ax+bx+c. The method comprisessetting a slope factor D=[f(1)−f(0)] and a gain factor G, wherein a product DG is a slopeassigned to a selected one of f′(0) and f′(1), in which G is used to adjust the slope. Aconstraint is applied on f(x) of quantities of f(0) and f(1) passing through the points of 0and 1, and satisfying the slope. The coefficients of a, b, and c for f(x) are within the rangeof 0≦x<1, so that f(x) is used to scale the destination data.
申请人：CHENG KUN-NAN
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