Patent ID: 6999981
Filing Date: 2006-02-14
Classification: G06F

Abstract:
1. An apparatus for computing the absolute value of a complex number having a real part and an imaginary part, wherein the real and imaginary parts of the complex number are each represented by a digital number of B bits, where B is an integral factor of 4, the apparatus comprising: a first squaring unit having an input receiving said real part of said complex number and an output generating a first square of said real part multiplied with itself; a second squaring unit having and input receiving said imaginary part of said complex number and an output generating a second of said imaginary part multiplied with itself; said first squaring unit and said second squaring unit each include: said first multiplier of each of said first squaring unit and said second squaring unit includes a summing unit having a first input receiving said first square, having a second input receiving said second square and an output generating a sum of said first square and said second square; and a square root unit having an input receiving said sum and an output generating a square root of said sum, said square root being said absolute value of said complex number.