Patent ID: 7194027

Claim:
An adaptive channel equalizing system for a home phoneline networking alliance (HomePNA) receiver, the channel equalizing system comprising: a frequency diverse quadrature amplitude modulation (FD-QAM) equalizer for determining FD-QAM tap coefficients and equalizing an FD-QAM signal input into the adaptive channel equalizing system; a quadrature amplitude modulation (QAM) equalizer for receiving the FD-QAM signal determines QAM tap coefficients during a predetermined header period, and continuously updating the QAM tap coefficients during a predetermined payload period to equalize the QAM signal upon receiving the QAM signal; and a multiplexer electrically coupled to the FD-QAM equalizer and the QAM equalizer, the FD-QAM equalizer and the QAM equalizer being connected in parallel, the multiplexer for selecting one of an equalized FD-QAM signal and an equalized QAM signal for output as an equalizer output symbol.