公开(公告)号：US20020147753A1

公开(公告)日：2002-10-10

申请号：US09773058

申请日：2001-01-30

Applicant: Cirrus Logic, Inc.

Inventor： Raghunath Rao ,  Girish Subramaniam

IPC: G06F007/38

CPC classification number: G06F7/552 ,  G06F7/483

Abstract: A method of calculating xM/N, x having a range and M and N integers. The range of x is partitioned into a selected number of intervals and a determination is made as to the interval into which x falls. x is normalized with a normalization factor calculated for the interval into which x falls to obtain a normalized value xnull within a normalized range. A value of xnullM/N is calculated over the normalized range and a value for xM/N is calculated by multiplying the calculated value of xnullM/N by a renormalization factor calculated for the interval in which x falls.

Abstract translation: 一种计算具有范围和M和N个整数的xM / N，x的方法。 x的范围被分割成选定数量的间隔，并且确定x落入的间隔。 x用对于x下降的间隔计算的归一化因子进行归一化，以获得标准化范围内的归一化值x'。 在标准化范围内计算x'M / N的值，并且通过将x'M / N的计算值乘以x计算的间隔的重新归一化因子来计算xM / N的值。