XDSL modem having time domain filter for ISI mitigation
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United States of America Patent
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May 15, 2001
Grant Date -
N/A
app pub date -
Sep 13, 1999
filing date -
Sep 13, 1999
priority date (Note) -
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Abstract
An xDSL communication system having a reduced number of digital filter coefficients. The full-length equalizer channel impulse response is truncated by first selecting a subset of contiguous filter samples followed by windowing and convolution with a time domain representation of a frequency domain filter. The result is a shorter equalizer having fewer coefficients so as to improve data transmission rate.
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