SYSTEM AND METHOD FOR COMPENSATING FOR CODEC DC OFFSET THROUGH A DC BLOCKING CHANNEL AND MODEM INCORPORATING THE SAME

摘要

A system for, and method of, compensating for codec DC offset and a modemincorporating the system or the method. In one embodiment, the systemincludes: (1) aDC offset compensator that develops and transmits a DC offset indicator signalcorresponding to a DC offset present along a transmission path to a receivingcodec and(2) a DC offset encoder, coupled to the DC offset compensator, that receivesthe DCoffset indicator signal and applies a time-varying DC offset compensatingsignal basedthereon to a user data symbol stream transmitted along the transmission path.