Patent ID: 6976202
Filing Date: 2005-12-13
Classification: H03M,H04L

Abstract:
1. A modem with a plurality of components forming a transmit path and a receive path for communicating data across a communication medium using a multiplicity of discrete sub-channels, and the modem comprising: a first forward error correction (FEC) component with complementary encoder and decoder portions on the transmit path and receive paths respectively, and with the complementary encoder and decoder portions encoding and decoding respectively the multiplicity of discrete sub-channels in a frequency domain; second FEC component with complementary encoder and decoder portions on the transmit and receive paths respectively, and with the complement encoder and decoder portions encoding and decoding respectively the multiplicity of discrete sub-channels in a time domain; and a Fourier transform component coupled between the first and second FEC, and the transform component for transforming the multiplicity of discrete sub-channels of a communication between the time domain and the frequency domain on the receive path and vice-versa on the transmit path.