Network Apparatus Capable of Canceling Far-End-Crosstalk and Network Signal Processing Method thereof
AssigneeRealtek Semiconductor Corp.
InventorsChih-Yung Shih, Liang-Wei Huang, Shieh-Hsing Kuo
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Abstract
The present invention provides a network apparatus capable of canceling far-end crosstalk (FEXT). When the network apparatus is under a training mode, hard data is provided to a FEXT canceller for performing FEXT cancellation. When the network apparatus is under a data mode, soft data is provided to the FEXT canceller for performing FEXT cancellation as well. Therefore, FEXT is effectively canceled, and consumption power of the network apparatus is saved.
Claims15
A network apparatus comprising:
- a first equalization module for equalizing a first network signal to output a first output equalization signal, and both a first calculated value and a second calculated value in equalization, wherein the first calculated value is a soft data, and the second calculated value is a hard data;
- a multiplexer coupled to the first equalization module, for selectively outputting the first calculated value or the second calculated value according to a selection control signal;
- a far-end-crosstalk (FEXT) canceller coupled to the multiplexer, for outputting a FEXT canceling signal according to the first calculated value or the second calculated value outputted from the multiplexer;
- and
- a second equalization module coupled to the FEXT canceller, for equalizing a second network signal according to the FEXT canceling signal, and for outputting a second output equalization signal;
- wherein when the network apparatus is operated under a data mode, the multiplexer is controlled according to the selection control signal to output the first calculated value to the FEXT canceller;
- and when the network apparatus is operated under a training mode, the multiplexer is controlled according to the selection control signal to output the second calculated value to the FEXT canceller.
A network signal processing method used on a network apparatus, the network signal processing method comprising:
- equalizing a first network signal for outputting a first calculated value and a second calculated value, wherein the first calculated value is a soft data, and the second calculated value is a hard data;
- selectively outputting the first calculated value or the second calculated value by a multiplexer;
- outputting a FEXT canceling signal according to the first calculated value or the second calculated value outputted from the multiplexer;
- and
- equalizing a second network signal and outputting an output equalization signal according to the FEXT canceling signal;
- wherein when the network apparatus is operated under a first mode, the multiplexer outputs the first calculated value so as to output the FEXT canceling signal;
- and when the network apparatus is operated under a second mode, the multiplexer outputs the second calculated value to output the FEXT canceling signal.
Dependencies are inferred from the claim text.