Patent ID: 7738580
Filing Date: 2010-06-15
Classification: H04L

Abstract:
1. A Quadrature Amplitude Modulation Trellis Coded Modulation (QAM-TCM) decoding apparatus for receiving and decoding a QAM signal, the QAM-TCM apparatus comprising: an in-phase least significant bit (LSB) decoding path for executing a decoding procedure on at least one LSB corresponding to the in-phase component of the QAM signal, the in-phase LSB decoding path comprising an in-phase LSB demapper for executing a demapping procedure on the QAM signal to generate the at least one LSB corresponding to the in-phase component of the QAM signal; a quadrature-phase LSB decoding path for executing a decoding procedure on at least one LSB corresponding to the quadrature-phase component of the QAM signal, the quadrature-phase LSB decoding path comprising a quadrature-phase LSB demapper for executing a demapping procedure on the QAM signal to generate the at least one LSB corresponding to the quadrature-phase component of the QAM signal; and a most significant bit (MSB) decoding path for executing a decoding procedure on MSB portions corresponding to the in-phase component and the quadrature-phase component of the QAM signal.