Modified asymmetric digital subscriber line for use with long loops
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United States of America Patent
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Apr 29, 2008
Grant Date -
N/A
app pub date -
Dec 20, 2002
filing date -
Dec 21, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Systems and methods are described for modified asymmetric digital subscriber line for use with long loops. A method includes modifying a digital signal processor including reallocating a portion of an original guard band to a modified downstream band and reallocating a portion of an original upstream band to a modified guard band. An apparatus includes a digital signal processor defining an expanded downstream band; and a high pass filter coupled to the digital signal processor to accommodate the expanded downstream band.
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