Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Patent
1995-11-27
1998-05-26
Olms, Douglas W.
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
370497, H04M 1106
Patent
active
057578036
ABSTRACT:
A data transmission system including a telephone service subscriber loop utilized for transmission of data including telephone service signals; a splitter operable for splitting the subscriber loop into a first transmission path including a low pass filter which accommodates a continuation of telephone service signal transmissions along the subscriber loop and a second transmission path, said second transmission path including a capacitive element for attenuating the telephone service signals; and a digital subscriber loop transceiver coupled to the second transmission path for implementing high rate digital data transmission over the subscriber loop, the transceiver including a frontend processing circuit having a transmit path and a receive path, at least said receive path comprising a high pass filter for further attenuating said telephone service signals. The capacitive element in the second transmission path and the high pass filter in the receive path of the transceiver frontend operate in conjunction to maintain transhybrid loss.
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Ribner David B.
Russell Mark A,.
Analog Devices Inc.
Olms Douglas W.
Phillips Matthew C.
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