Apparatus and method for communicating signal in asymmetric digital subscriber line network by using dual link discrete multi-tone
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United States of America Patent
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Jan 25, 2005
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app pub date -
Dec 13, 1999
filing date -
Dec 12, 1998
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Abstract
A modulation/demodulation device for communicating signals in ADSL network. The modulation device includes a unit for generating a control signal based on a predetermined data, and a unit for determining the control signal based on the amounts of the low rate signal and the high rate signal, a unit for receiving a low rate signal and for generating a low rate signal sequence having a first controlled number of bits, based on the control signal, a unit for receiving a high rate signal through terminals LSx and ASx and for generating a high rate signal sequence having a second controlled number of bits, based on the control signal, and a unit for modulating the low rate signal sequence and the high rate signal sequence and for coupling modulated low rate signal sequence and modulated high rate signal sequence, thereby generating a transmission signal.
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