Patent ID: 7864886
Filing Date: 2011-01-04
Classification: H04L

Abstract:
1. A phase calculation apparatus comprising: a quarter surface preprocessor determining the bigger one between an absolute value of I component data and an absolute value of Q component data as horizontal component data and the smaller one as perpendicular component data, and detecting information on a phase region indicating an m a phase representative value detector detecting phase representative values x corresponding to the horizontal component data and the perpendicular component data; a quarter surface postprocessor calculating phase values of the I/Q component data based on the detected information on the phase region and the detected phase representative values x using binary search, wherein the quarter surface postprocessor comprises: a phase representative value storage unit storing phase representative values corresponding to phases of 2 a reference value generator that outputs N reference values, wherein N is an integer greater than one; and an address generator determining, if the perpendicular component data is larger than an n wherein the reference value generator provides the address generator with 1/2 of the perpendicular component data as a first reference value of the N reference values, if the value of A