Patent ID: 6898615
Filing Date: 2005-05-24
Classification: G06F

Abstract:
1. A signal processing unit which calculates the value of v^p, where v is an item of floating point data made up from an E-bit exponent part and an F-bit mantissa part, and p is a constant, comprising: an exponent part extraction section which extracts a bit series from said exponent part of said floating point data item; a mantissa part extraction section which extracts the most significant K bits from said mantissa part of said floating point data item; a first conversion section which inputs the output e of said exponent part extraction section and outputs the value of a function X(e) thereof; a second conversion section which inputs the output f of said mantissa part extraction section and outputs the value of a function Y(f) thereof; and a multiplier section which multiplies together the output value from said first conversion section and the output value from said second conversion section; wherein: when i and j are taken as integers, said function X(i) is a function which returns the value: and said function Y(j) is a function which returns the value: