Subscriber loop range extension using negative-impedance repeaters
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United States of America Patent
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Issued Date -
Mar 14, 2002
app pub date -
May 29, 2001
filing date -
Jun 23, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Systems and methods are described for subscriber loop range extension using negative-impedance repeaters. A method includes: extracting a signal from a digital subscriber loop; then amplifying the signal utilizing a negative impedance converter; and then inserting the signal back into the digital subscriber loop. An apparatus includes a negative impedance converter; a downstream high-pass filter electrically coupled to both i) a digital subscriber loop and ii) the negative impedance converter; and an upstream high-pass filter electrically coupled to both i) the negative impedance converter and ii) the digital subscriber loop.
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