Apparatus and method for communicating signal in asymmetric...

Details Apparatus and method for communicating signal in asymmetric... Apparatus and method for communicating signal in asymmetric...

2005-01-25

2005-01-25

Chin, Stephen (Department: 2634)

Pulse or digital communications

Transceivers

Modems

Reexamination Certificate

active

06847679

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.

REFERENCES:
patent: 4972408 (1990-11-01), Le Bihan Herve et al.
patent: 5966377 (1999-10-01), Murai
patent: 6005896 (1999-12-01), Maruyama
patent: 6144695 (2000-11-01), Helms et al.

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