Browsing by Author "O'malley, Marcia K."
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Item Method and device for real-time differentiation of analog and digital signals(2018-03-06) Celik, Ozkan; Chawda, Vinay; O'malley, Marcia K.; Rice University; United States Patent and Trademark OfficeThe controller includes a differentiating engine configured to receive an input signal value (ISV), wherein the ISV corresponds to state information for one selected from a group consisting of a controlled process and a user interface. The differentiating engine is further configured to determine an error between the ISV and an estimated input signal (EIS), estimate a frequency of the IS, select a plurality of pre-determined gains using the frequency, wherein at least one plurality of pre-determined gains is a suction control gain, determine a first estimated derivative of the input signal (EDIS) using the plurality of pre-determined gains and the error, and to output the first EDIS.