Subscriber loop range extension using negative-impedance...

Details Subscriber loop range extension using negative-impedance... Subscriber loop range extension using negative-impedance...

H - Electricity

04

M

H04M 11/06 (2006.01) H04B 3/36 (2006.01) H04L 5/14 (2006.01) H04L 27/26 (2006.01) H04M 19/00 (2006.01)

Patent

CA 2351242

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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