Crosstalk reduction in a backplane employing low-skew clock...

Details Crosstalk reduction in a backplane employing low-skew clock... Crosstalk reduction in a backplane employing low-skew clock...

2008-04-29

2008-04-29

Pham, Chi (Department: 2616)

Multiplex communications

Crosstalk suppression

C370S508000

Reexamination Certificate

active

10780945

ABSTRACT:
A system for a backplane that employs i) an adjustment of positive-to-negative (P-N) driver skew of a transmit signal of a relatively high-speed differential driver to reduce far-end crosstalk, ii) a high-speed differential subtraction circuit combining a gain-adjusted replica of at least one transmit signal with a received signal to reduce near-end crosstalk, and iii) a phase-locked loop (PLL) synchronization circuit to align timing events between a set of near-end and far-end high-speed interfaces.

REFERENCES:
patent: 6377640 (2002-04-01), Trans
patent: 6820234 (2004-11-01), Deas et al.
patent: 2002/0181633 (2002-12-01), Trans

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