Receiver termination circuit for a high speed direct current...

Pulse or digital communications – Cable systems and components

Reexamination Certificate

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Details

C375S259000, C375S346000

Reexamination Certificate

active

07995660

ABSTRACT:
A method for matching receiver and transmitter common-mode voltages for a high-speed direct current (DC) serial connection between the receiver and the transmitter includes measuring, at the receiver, a common-mode voltage of the transmitter. The common-mode voltage of the transmitter is an average of a voltage signal transmitted by the transmitter and received by the receiver. The method further includes comparing the common-mode voltage of the transmitter with a common-mode voltage of the receiver. The method further includes maintaining the common-mode voltage of the receiver at a first level at which the common-mode voltage of the receiver substantially matches the common-mode voltage of the transmitter.

REFERENCES:
patent: 4377789 (1983-03-01), Hoover
patent: 6654462 (2003-11-01), Hedberg
patent: 6870423 (2005-03-01), Takauchi et al.
patent: 7126425 (2006-10-01), Kimura
patent: 7215156 (2007-05-01), Li
patent: 2004/0100309 (2004-05-01), Best et al.
patent: 2006/0176074 (2006-08-01), Van Epps et al.
patent: 2007/0103186 (2007-05-01), Clements et al.

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