Techniques for enabling a 10BT active output impedance line...

Details Techniques for enabling a 10BT active output impedance line... Techniques for enabling a 10BT active output impedance line...

2008-07-22

2008-07-22

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S030000, C326S082000

Reexamination Certificate

active

07403041

ABSTRACT:
A line driver for generating 10 BT signals is disclosed. Digital symbols to be transmitted via a 10 BT Ethernet line are converted by a digital-to-analog converter into a corresponding analog voltage signal, which is fed into an active output impedance line driver. The digital-to-analog converter also receives a reference voltage reflecting variations of the supply voltage and adjusts its output signal accordingly to provide a deliberately variable analog voltage signal to the line driver.

REFERENCES:
patent: 6665347 (2003-12-01), van Bavel et al.
patent: 6724219 (2004-04-01), Kim et al.
patent: 2004/0201416 (2004-10-01), Wyers et al.
patent: 2007/0296456 (2007-12-01), van der Goes et al.

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