Patent ID: 8555031
Filing Date: 2013-10-08
Classification: G06F

Abstract:
1. A processor for QR-decomposition, the processor comprising a boundary cell and at least one internal cell, wherein the boundary cell comprises: a first CORDIC unit, for receiving real and imaginary components of an input value of the boundary cell, and for supplying first magnitude and phase values as outputs of the first CORDIC unit; a second CORDIC unit, for receiving the first magnitude value as a first input, for supplying a second phase value as a first output, and for supplying a data value R of the boundary cell from a second output to a second input of the second CORDIC unit; and a sine(sin)/cosine(cos) calculation unit, for receiving the first and second phase values as inputs, and for calculating sin and cos values based on the supplied first and second phase values; and the at least one internal cell comprises: