Patent ID: 7230989

Claim:
A digital communication system for processing Digital Visual Interface (DVI) communication data signals and Display Data Channel (DDC) communication signals over a transmission line, the system comprising: an open-loop equalizer circuit operable to receive DVI communication signals transmitted over the transmission line and output equalized DVI communication data signals, the open-loop equalizer circuit comprising: a differential pair defining first and second inputs; a reactive load coupled to the differential pair; and a pair of input follower circuits configured to receive the DVI communication data signals and feedback signals from the reactive load and generate corresponding first and second input signals for the first and second inputs of the differential pair the open-loop equalizer circuit providing a frequency dependent gain that is at or about the inverse of a frequency dependent attenuation caused by the transmission line, the DVI communication data signal being proportionately equalized, and if the open-loop equalizer provides a frequency dependent gain that is greater than the inverse of a frequency dependent attenuation caused by the transmission line, then the DVI communication data signal being proportionately equalized.