Patent ID: 6771713
Filing Date: 2004-08-03
Classification: H04L

Abstract:
A carrier phase synchronizer for generating a phase adjustment signal from a phase adjusted sampled input signal of a received input signal being phase adjusted by the phase adjustment signal and sampled at a rate of a timing signal, the received input signal being a continuous phase modulated signal modulated by a symbol sequence generated from a precoded data sequence of an input data sequence, the phase adjusted sampled input signal having a sampled inphase component and a sampled quadrature component, the carrier phase synchronizer comprising,an inphase isolator and a quadrature isolator for respectively isolating the sampled inphase component and sampled quadrature component to provide an inphase signal and a quadrature signal, an inphase serial data demodulator and a quadrature serial data demodulator for receiving and filtering the inphase signal and the quadrature signal to generate an odd filter response and an even filter response, respectively, and for converting and sampling the odd and even filter responses into odd data and even data, respectively, wherein the odd data and the even data alternately, form an estimate of the input data sequence, an odd mixer and an even mixer for respectively mixing the even filter response and the odd data signal into an odd error signal and mixing the odd filter response signal and the even data signal into an even error signal, and an oscillator means for converting the odd and even error signals into the phase adjustment signal.