Oversampling transversal equalizer
OwnerTatsuaki KITTAinventor
Life of this patent
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Abstract
An equalizer comprises: a calculation unit performing calculation of a tap coefficient for each symbol interval; an interpolation unit obtaining, by performing interpolation, a tap coefficient that has become necessary due to oversampling, including a tap coefficient of a symbol interval, by using a tap coefficient of the symbol interval output from the calculation unit; a filter unit performing equalization on an input signal by using the tap coefficient obtained by the interpolation unit; and a thinning unit thinning data of a sampling interval output from the filter unit into data of the symbol interval to be used as output from the oversampling transversal equalizer.
Claims16
An oversampling transversal equalizer, comprising:
- a tap coefficient calculation section performing calculation of a tap coefficient for each symbol interval;
- a tap coefficient interpolation section obtaining, by performing interpolation, a tap coefficient that has become necessary due to oversampling, including a tap coefficient of a symbol interval, by using a tap coefficient of the symbol interval output from the tap coefficient operation section;
- and
- a filter performing equalization on an input signal by using the tap coefficient obtained by the tap coefficient interpolation section.
An oversampling transversal equalizer, comprising:
- a first tap coefficient calculation section calculating a tap coefficient corresponding to a symbol position of a received signal;
- a second tap coefficient calculation section calculating a tap coefficient corresponding to a sampling point other than a symbol position of a received signal from the tap coefficient corresponding to the symbol position when oversampling operation is performed;
- and
- a filter performing equalization on an input signal from the tap coefficient corresponding to the symbol position and the tap coefficient corresponding to the sampling point other than the symbol position.
Dependencies are inferred from the claim text.