Digital communication system using telephone line and...

Details Digital communication system using telephone line and... Digital communication system using telephone line and...

2005-05-31

2005-05-31

Chan, Wing F. (Department: 2643)

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

C379S093280, C379S093080

Reexamination Certificate

active

06901138

ABSTRACT:
Disclosed is an initializing method of an xDSL modem in which a gain of an amplifier for the reception is set to the maximum to detect a received signal when a communication channel is established and to determine whether, after requesting to establish the communications channel, the received signal is noise or a real xDSL signal.

REFERENCES:
patent: 6295343 (2001-09-01), Hjartarson et al.
patent: 6728366 (2004-04-01), Barkaro et al.
patent: 2003/0076906 (2003-04-01), Mujica
patent: WO 0139384 (2001-05-01), None

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