Patent ID: 9514097
Filing Date: 2016-12-06
CPC Classification: G06F

Claim Text:
1. A system, comprising: a computing device having a processor; and a causality checker module communicably connected to the processor for use in simulating the behavior of a physical system based on data from the physical system, wherein the causality checker module is configured to: utilize the data from the physical system to perform a rational function approximation to a frequency response to determine if a transfer function of a linear time invariant system is causal; and calculate a value for the rational function approximation based on the following equation: wherein the H(jω) is the frequency response at angular frequency ω, wherein, upon verification of causality of the transfer function, perform a simulation of the physical system using the causal transfer function; wherein the physical system is built or modified based on results of the simulation of the physical system.