Patent ID: 6535566
Filing Date: 2003-03-18
Classification: H04L

Abstract:
A demodulating method for demodulating a received signal received by a demodulator unit, comprising:detecting an absolute phase of signal points of the received signal by a first phase detecting method; detecting the absolute phase by a second phase detecting method in parallel with said detecting of the absolute phase by the first phase detecting method, said second phase detecting method having a slower detection speed or a higher detection accuracy than the first phase detecting method; and determining the absolute phase based on the detection of the absolute phase by each of the first and second detecting methods when the detection of the absolute phase by the first and second detecting methods are the same, and determining the absolute phase based on the phase detection result of said detection of the absolute phase by the second phase detecting method when the phase detection results of said detection of the absolute phase by each of the first and second detecting methods are different, wherein said demodulating method demodulates the received signal by detecting the absolute phase.