Patents by Inventor Ashwin Murali

Ashwin Murali has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for drug clustering
    Patent number: 11804282
    Abstract: Grouping vectors describing functional interactions between compounds and reagents into clusters identifies groups of similar compounds, and may identify drug targets, pathways of action, deleterious toxicities, immune stimulation and evasion potential, or other information regarding interactions between compounds and reagents.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: October 31, 2023
    Assignee: nference, Inc.
    Inventors: Murali Aravamudan, Venkataramanan Soundararajan, Ashwin Murali, Jeyendran Balakrishnan, Tyler Wagner, Enrique Garcia-Rivera
  • Apparatus and method for sensorless detection of load torque of a stepper motor and for optimizing drive current for efficient operation
    Patent number: 10511245
    Abstract: A method for controlling the drive current in a stepper motor includes measuring stepper motor current, computing a load angle of the stepper motor, calculating a torque ratio of the stepper motor, generating a reference current as a function of the torque ratio and a maximum current setting for the stepper motor, and setting the drive current of the stepper motor as a function of the reference current.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: December 17, 2019
    Assignee: Microsemi SoC Corp.
    Inventors: Battu Prakash Reddy, Ashwin Murali
  • Apparatus and Method For Sensorless Detection of Load Torque of a Stepper Motor and for Optimizing Drive Current for Efficient Operation
    Publication number: 20190190424
    Abstract: A method for controlling the drive current in a stepper motor includes measuring stepper motor current, computing a load angle of the stepper motor, calculating a torque ratio of the stepper motor, generating a reference current as a function of the torque ratio and a maximum current setting for the stepper motor, and setting the drive current of the stepper motor as a function of the reference current.
    Type: Application
    Filed: November 5, 2018
    Publication date: June 20, 2019
    Applicant: Microsemi SoC Corp.
    Inventors: Battu Prakash Reddy, Ashwin Murali
  • Circuit and method to detect failure of speed estimation/speed measurement of a multi-phase AC motor
    Patent number: 10241130
    Abstract: A method for detecting failure of speed measurement of a multi-phase AC motor includes (1) sensing current drawn by the motor, (2) sensing voltage magnitude supplied to the motor, (3) measuring motor speed, (4) calculating motor speed, (5) determining whether the difference between the measured motor speed and the calculated motor speed is greater than a predetermined threshold, if the difference between the measured motor speed and the calculated motor speed is not greater than a predetermined threshold, repeating (1) through (5), if the difference between the measured motor speed and the calculated motor speed is greater than a predetermined threshold, indicating a fault, if a fault is indicated, performing a predetermined number of restart attempts, if the motor is successfully restarted, repeating (1) through (5), if the motor is not successfully restarted, indicating a restart failure.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: March 26, 2019
    Assignee: Microsemi SoC Corporation
    Inventors: Prakash Reddy, Ashwin Murali, Pinninti Arjun
  • CIRCUIT AND METHOD TO DETECT FAILURE OF SPEED ESTIMATION/SPEED MEASUREMENT OF A MULTI-PHASE AC MOTOR
    Publication number: 20170052208
    Abstract: A method for detecting failure of speed measurement of a multi-phase AC motor includes (1) sensing current drawn by the motor, (2) sensing voltage magnitude supplied to the motor, (3) measuring motor speed, (4) calculating motor speed, (5) determining whether the difference between the measured motor speed and the calculated motor speed is greater than a predetermined threshold, if the difference between the measured motor speed and the calculated motor speed is not greater than a predetermined threshold, repeating (1) through (5), if the difference between the measured motor speed and the calculated motor speed is greater than a predetermined threshold, indicating a fault, if a fault is indicated, performing a predetermined number of restart attempts, if the motor is successfully restarted, repeating (1) through (5), if the motor is not successfully restarted, indicating a restart failure.
    Type: Application
    Filed: August 17, 2016
    Publication date: February 23, 2017
    Applicant: Microsemi SoC Corporation
    Inventors: Prakash Reddy, Ashwin Murali, Pinninti Arjun