Patent ID: 7102545
Filing Date: 2006-09-05
Classification: H04L

Abstract:
1. A data detector for detecting data placed on a bi-directional data channel by a first data generating device, the data detector comprising: a first input for accepting a signal of a logic state that a second data generating device placed on the data channel; a second input for accepting a present signal on the data channel; a first reference voltage indicative of a logic HIGH signal on the data channel; a second reference voltage indicative of a logic LOW signal on the data channel; a third reference voltage that is an average of the first reference voltage and the second reference voltage; and a comparator structured to compare the present signal on the data channel to the first reference voltage and compare the present signal on the data channel to the third reference voltage in a first operational state, and to compare the present signal on the data channel to the second reference voltage and compare the present signal on the data channel to the third reference voltage in a second operational state.