| 摘要 |
<P>PROBLEM TO BE SOLVED: To maintain output characteristics of a signal independently of a communication path by matching the amount of compensation to be applied to an equalizer with an attenuation level caused by a medium as much as possible. <P>SOLUTION: The disclosed method includes applying at least one of a loss compensation for frequency-dependent distortion and an offset compensation for DC-offset distortion to a data signal before or after the distortion occurs to generate an output signal, the data signal comprising even data and odd data. The method also includes sampling the output signal to generate a plurality of data values and an error value, each data value comprising either a high value or a low value based on the sampling of the output signal, the error value indicating residue of the distortion based on the sampling of the output signal. The method further includes monitoring the output signal for a pattern of data values corresponding to one or more filter patterns. The method also includes detecting a pattern of data values in the output signal matching one of the filter patterns. The method further includes adjusting at least one of the loss compensation and the offset compensation applied to the data signal based on the error value. <P>COPYRIGHT: (C)2008,JPO&INPIT |
