Patent ID: 8073082
Filing Date: 2011-12-06
Classification: H04L

Abstract:
1. A mirror sub-carrier demodulation circuit for receiving and demodulating data of a mirror sub-carrier, comprising: a waveform generation unit, generating a composite waveform of received I and Q signals; a peak detection unit, detecting peak a value of the composite waveform generated by the waveform generation unit; a peak interval detection unit, detecting an interval of the peak value detected by the peak detection unit and generating timing at which the received data is input; a storage unit, storing I data and Q data at the timing generated by the peak interval detection unit; a correlation calculation unit, performing a correlation calculation using the I data and the Q data of the storage unit which are obtained on the basis of a setting value M of the mirror sub-carrier during a 1-bit period; and a data determination unit, determining data of 0 or 1 from the result calculated by the correlation calculation unit.