Patent ID: 7450629
Filing Date: 2008-11-11
Classification: H04L

Abstract:
1. A data receiving circuit, comprising: a first communication link circuit, including: a baseband circuit and at least a passband circuit, the baseband circuit corresponding to a baseband sub-channel and the passband circuit corresponding to a passband sub-channel; and a circuit that combines a first subset of a data stream having a first symbol rate from the baseband circuit and a second subset of the data stream having a second symbol rate from the passband circuit into the data stream, the first symbol rate and the second symbol rate each being substantially less than a symbol rate of the data stream, wherein the baseband sub-channel and the passband sub-channel are separated by an adjacent guardband of frequencies, a passband carrier frequency is adjusted to define the guardband, and the guardband corresponds to a first notch in a channel response of a first communications channel.