Printed circuit board, and backplane data transmission method

Details Printed circuit board, and backplane data transmission method Printed circuit board, and backplane data transmission method

2009-07-21

2010-10-12

Natalini, Jeff (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C324S637000, C375S220000

Reexamination Certificate

active

07812618

ABSTRACT:
In a receiving-side printed circuit board, a reflected-waveform analyzing unit analyzes a reflected wave generated in a transmission line on a backplane along with transmission of a signal from a transmitting-side printed circuit board, and acquires waveform data that indicates a waveform of the reflected wave. An input signal identifying unit calculates a size of the reflected wave that is currently received based on the waveform data and data on previously received signals. The input signal identifying unit corrects a threshold value by the calculated size, and identifies a state of a bit indicated by the signal from the transmitting-side printed circuit board.

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U.S. Office Action dated Jan. 30, 2009 for corresponding U.S. Appl. No. 11/789,238.

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