Data receiving system
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMitsuru Uesugi, Kazuhisa Tsubaki, Kouichi Honma
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Abstract
According to the present invention, a large compensation effect can be obtained in a small operation volume regardless of which one of a distortion due to a frequency selective fading and a distortion due to an interference of adjacent waves is ruling. In the present invention, a principal wave signal and signals of channels adjacent to both sides of said principal wave are taken out, and power of these signals is compared to select either one of the fractional interval equalizer and the linear decision feedback equalizer.
Claims13
A data receiving system, comprising:
- a receiving filter for taking out from a received signal an output comprising a signal of a principal wave and signals of channels adjacent to said principal wave
- an equalizer for removing a distortion in a transmission path from at least a portion of said output by selectively performing one of fractional interval equalization and linear decision feedback equalization;
- and
- an equalizing controller for deciding, in accordance with said output, which one of said fractional interval equalization and said linear decision feedback equalization is to be performed by said equalizer.
A data receiving system, comprising:
- a receiving filter for taking out from a received wave an output comprising a signal of a principal wave and signals of channels adjacent to said principal wave;
- a fractional interval equalizer for removing a distortion in a transmission path from at least a portion of said output;
- a linear decision feedback equalizer for removing said distortion in said transmission path from said at least a portion of said output;
- and
- an equalizing controller for selecting, in accordance with said output, one of said fractional interval equalizer and said linear decision feedback equalizer to use to remove said distortion in said transmission path.
Dependencies are inferred from the claim text.