Increasing gain with isolating upstream and downstream filters and amplifiers
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United States of America Patent
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Dec 7, 2004
Grant Date -
N/A
app pub date -
Jan 3, 2000
filing date -
Jan 3, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Systems and methods are described for digital subscriber loop repeaters. A method of transforming a digital subscriber loop signals includes increasing a gain with a digital subscriber loop repeater including: isolating an upstream signal band by passing an upstream signal through an upstream pass filter; amplifying the isolated upstream signal with an upstream amplifier; isolating a downstream signal band by passing a downstream signal through a downstream pass filter; and amplifying the isolated downstream signal with a downstream amplifier. The systems and methods provide advantages because DSL can be provided over long loops and/or over coil loaded loops.
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