Patent ID: 8045668
Filing Date: 2011-10-25
Classification: H04L

Abstract:
1. A frame synchronization apparatus for controlling a frame synchronization process carried out on an input signal, said frame synchronization apparatus comprising: a correlation-value computation section configured to compute a correlation value representing a correlation between a known delay wave detection series composed of a symbol array of known values inserted into said input signal and a received delay wave detection series composed of a symbol array obtained as a result of a signal detection process carried out on said input signal; an IQ component select section configured to select a larger one of absolute values representing amplitudes of I and Q components representing respectively the real and imaginary parts of said correlation value computed by said correlation-value computation section; and a synchronization-signal outputting section configured to carry out a peak detection process to detect a peak in pieces of data arranged along a time axis to form a correlation-value series composed of said absolute values each selected by said IQ component select section as the amplitude of said I or Q component and output a frame synchronization signal for said input signal in accordance with a result of said peak detection process.