DIAGNOSIS OF A SHARED BUS USING INDICATORS APPLIED TO A VECTOR BASED ON THE AMPLITUDE OF AN OBSERVED SIGNAL

Abstract: systems and methods for diagnosing a shared bus based on an indicator applied to a vector of amplitudes of signals transmitted over the bus. an aspect provides a method comprising: transmitting a pulse signal over a shared bus; capturing an observed signal, wherein the observed signal is a superimposition of the pulse signal and a reflection signal; comparing an amplitude of the observed signal to a plurality of threshold values; creating a vector indicating a given threshold at which the amplitude of the observed signal first exceeds one of the plurality of threshold values at a plurality of sampling times; applying an indicator to the vector; and diagnosing the shared bus based on the indicator.

Inventor(s): Markus Becht, Werner Weber, Hans-Martin Kaufmann, Jing Richter-Xu

CPC Classification: G06F11/221 (Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing)

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