Company Filing History:
Years Active: 2017-2022
Title: Innovations of Ratna Kumar Venkata Parupudi
Introduction
Ratna Kumar Venkata Parupudi is a notable inventor based in Bengaluru, India. He has made significant contributions to the field of technology, particularly in photon counting systems. With a total of five patents to his name, his work reflects a commitment to advancing innovation in his area of expertise.
Latest Patents
One of his latest patents is titled "Dynamic noise shaping in a photon counting system." In this invention, a charge sensitive amplifier (CSA) generates an integrated signal in response to a current signal. A high pass filter is coupled to the CSA and receives the integrated signal and an inverse of an event signal, allowing the high pass filter to generate a coarse signal. An active comparator is then coupled to the high pass filter, receiving the coarse signal and a primary reference voltage signal, which enables the active comparator to generate the event signal.
Another significant patent is the "Hybrid leakage-compensation scheme for improved correction range." This invention features a dark current compensation circuit that includes a first comparator with inputs for a detection signal and a first voltage, as well as a second comparator with inputs for the detection signal and a second voltage. The circuit also comprises a controller coupled to the first and second comparators, which has an input for an event signal. An adjustable current source is connected to the controller, generating a compensation current. The controller adjusts the value of the compensation
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