Digital subscriber line driver

Details Digital subscriber line driver Digital subscriber line driver

2006-12-12

2006-12-12

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Synchronizers

Self-synchronizing signal

Reexamination Certificate

active

07149268

ABSTRACT:
A digital subscriber line (DSL) driver allows a transmitter to monitor its own transmit spectrum at the subscriber loop and adjust the transmit spectrum based on detected line conditions, affected by the presence of bridged taps or any other impedance variations. The transmit spectrum is preferably equalized so that all carriers, or tones, transmit using the same power and exhibit the same margin. The invention is applicable to DMT and single carrier modulation formats.

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