Patent ID: 7078912

Claim:
A method capable of examining a signal transmission property of a signal propagation medium comprising: configuring a medium-under-test in a shorted configuration; transmitting first and second test signals to the medium-under-test in the shorted configuration; receiving first and second reflected signals based on the first and second test signals; applying a first gain level to the first reflected signal, wherein the first reflected signal includes first and second time segments and wherein the first level of gain is approximately a highest level without saturating any of the gain applied first reflected signal during the first time segment; applying a second gain level to the second reflected signal, wherein the second reflected signal includes first and second time segments and wherein the second level of gain is approximately a highest level without saturating any of the gain applied second reflected signal during the second time segment; storing a first mosaic signal, wherein the first mosaic signal comprises the first time segment of the gain applied first reflected signal and the second time segment of the gain applied second reflected signal; configuring the medium-under-test in an open loop configuration; transmitting third and fourth test signals to the medium-under-test in the open loop configuration; receiving third and fourth reflected signals based on the third and fourth test signals; applying the first level of gain to the third reflected signal, wherein the gain applied third reflected signal includes first and second time segments; applying the second level of gain to the fourth reflected signal, wherein the gain applied fourth reflected signal includes first and second time segments; storing a second mosaic signal, wherein the second mosaic signal comprises the first time segment of the gain applied third reflected signal and the second time segment of the gain applied fourth reflected signal; and removing reflection arising from at least one untargeted bridge tap, wherein the removing comprises subtracting the first mosaic signal from the second mosaic signal.