Patent ID: 6643324
Filing Date: 2003-11-04
Classification: H03H,H04L

Abstract:
An equalization receiver responsive to two differentially-related digital input signals occurring at a communication rate of a predetermined frequency, comprising:a first input device responsive to a first digital input signal and to supply a first drive signal of a magnitude amplified relative to the first digital input signal by a factor related to current conducted by the first input device; a first current source connected to conduct current through the first input device; a second input device responsive to a second digital input signal to supply a second drive signal of a magnitude amplified relative to the second digital input signal by a factor related to the current conducted by the second input device; a second current source connected to conduct current through the second input device, the first and second current sources being separate from one another; a differential amplifier responsive to first and second drive signals to supply an output signal related to the relative difference in magnitude of the first and second drive signals; and an equalization circuit connected between the first and second current sources, the equalization circuit having a frequency dependent impedance characteristic which exhibits a minimum impedance and a maximum coupling of the first and second current sources for the greatest current conductivity of and the greatest amplification of the relative magnitudes of the first and second drive signals by the first and second input devices at the predetermined frequency, the more amplified relative magnitudes of the first and second drive signals causing the differential amplifier to deliver a more amplified output signal.