Patents by Inventor Gajendra Kumar

Gajendra Kumar 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).

  • Publication number: 20240350052
    Abstract: An artificial intelligence (AI) and machine learning (ML) based graphical user interface (GUI) system for early detection of depression symptoms using facial expression recognition and electroencephalogram is provided via receiving image data of a biological subject under examination for depression; receiving, from the biological subject, electroencephalogram data; analyzing the image data, via a first machine learning model, to identify an emotional state conveyed by a face of the biological subject; analyzing the electroencephalogram data, via a second machine learning model, to identify a severity level of depression in the biological subject; and providing the emotional state identified by the first machine learning model and the severity level identified by the second machine learning model to a graphical user interface.
    Type: Application
    Filed: April 17, 2024
    Publication date: October 24, 2024
    Inventors: Gajendra Kumar, Eric Morrow, Kuldeep Singh, Tanaya Das
  • Publication number: 20240338820
    Abstract: Artificial intelligence-assisted gait analysis of Christianson syndrome patients is provided via recording video of a subject performing a walking task; analyzing the video to determine poses and relationships between a plurality of points of the subject corresponding to anatomical features of the subject while performing the walking task; analyzing, using a machine learning model, a gait of the subject based on the relationships between the plurality of points while performing the walking task; classifying, using the machine learning model, the subject as exhibiting or not exhibiting symptoms of a motor disorder based on the gait; and outputting, via a graphical user interface, a determination of the subject as exhibiting or not exhibiting the symptoms of the motor disorder.
    Type: Application
    Filed: April 5, 2024
    Publication date: October 10, 2024
    Inventors: Eric M. Morrow, Gajendra Kumar, Judy Shih-Hwa Liu
  • Patent number: 12020855
    Abstract: A test and measurement instrument for determining magnetic core losses of a device under test during in circuit operation. The test and measurement instrument receives a primary current signal from a primary winding of a device under test and receives a primary voltage signal measured across a magnetic core of the device under test. Based on the primary electric current signal and the primary voltage signal, the test and measurement instrument determines a magnetic loss of the device under test. In some examples, the test and measurement instrument can use primary and secondary voltage and current inputs to determine the magnetic loss of the device under test. The magnetic loss of the device under test can be displayed on a display of the test and measurement instrument. The magnetic loss can include a total magnetic loss, a hysteresis loss, a copper loss, and/or other losses.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: June 25, 2024
    Assignee: Tektronix, Inc.
    Inventors: Shubha B, Niranjan R Hegde, Yogesh M Pai, Gajendra Kumar Patro, Krishna N H Sri
  • Publication number: 20230083769
    Abstract: A drug screening method uses electroencephalogram (EEG) or electromyogram (EMG) data applied to a ML model. EEG or EMG data is measured from a first animal species during administration of a seizure-inducing agent. A ML model is trained with the first animal species EEG or EMG data as well as measured EEG or EMG from a second animal species such that the trained ML model is able to identify a neurological adverse event in the second animal species based on data from the first animal species. A potential drug candidate is screened by administering the potential drug candidate to the first animal species and measuring the EEG or EMG data of the first animal species during the potential drug candidate administration. The measured EEG or EMG data is applied to the ML model to determine whether there is the neurological adverse event associated with the drug candidate administration.
    Type: Application
    Filed: August 9, 2022
    Publication date: March 16, 2023
    Inventors: Chi Him Eddie MA, Gajendra KUMAR
  • Patent number: 11383081
    Abstract: A neurostimulation system includes an electromyographic (EMG) electrode; a neural electrode implantable in a deep cerebellar nuclei of a subject; a data acquisition unit in communication with the EMG electrode for receiving and transmitting a EMG signal; and a processor in communication with the data acquisition unit, the processor generates a EMG pattern based on the EMG signal and outputs a stimulation signal to the neural electrode when the EMG pattern is indicative of an abnormal motor movement. A method of modulating an abnormal motor movement of a subject by using the neurostimulation system.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: July 12, 2022
    Assignee: City University of Hong Kong
    Inventors: Chi Him Eddie Ma, Chung Tin, Gajendra Kumar
  • Patent number: 11181581
    Abstract: The disclosed technology relates to a method and apparatus for graphically displaying a switching cycle of a switching device. A switching voltage and a switching current are acquired for a device under test via a voltage probe and a current probe, respectively, for a plurality of switching cycles of the device under test. The switching current versus the switching voltage is plotted on a current versus voltage plot as a curve for each of the switching cycles. Each of the curves on the current versus voltage plot overlap each other and are displayed to a user.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: November 23, 2021
    Assignee: TEKTRONIX, INC.
    Inventors: Krishna N H Sri, Gajendra Kumar Patro, Abhinav Bal, Gurushiddappa M N
  • Publication number: 20210358685
    Abstract: A test and measurement instrument for determining magnetic core losses of a device under test during in circuit operation. The test and measurement instrument receives a primary current signal from a primary winding of a device under test and receives a primary voltage signal measured across a magnetic core of the device under test. Based on the primary electric current signal and the primary voltage signal, the test and measurement instrument determines a magnetic loss of the device under test. In some examples, the test and measurement instrument can use primary and secondary voltage and current inputs to determine the magnetic loss of the device under test. The magnetic loss of the device under test can be displayed on a display of the test and measurement instrument. The magnetic loss can include a total magnetic loss, a hysteresis loss, a copper loss, and/or other losses.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 18, 2021
    Applicant: Tektronix, Inc.
    Inventors: Shubha B, Niranjan R Hegde, Yogesh M Pai, Gajendra Kumar Patro, Krishna N H Sri
  • Patent number: 10895612
    Abstract: A test and measurement instrument, comprising at least one port configured to receive a signal from a device under test; a user interface configured to receive a user input, the user input indicating magnetic properties of a magnetic material of the device under test, and one or more processors. The one or more processors are configured to generate a hysteresis loop mask based on the magnetic properties of the magnetic material, determine whether the signal received from the device under test violates the hysteresis loop mask, and generate an alert when the signal received from the device under test violates the hysteresis loop mask. The test and measurement instrument may also include a display configured to display the hysteresis loop mask, the signal received from the device under test, and/or the alert.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: January 19, 2021
    Assignee: Tektronix, Inc.
    Inventors: U N Vasudev, Gajendra Kumar Patro, Krishna N H Sri
  • Publication number: 20200406031
    Abstract: A neurostimulation system includes an electromyographic (EMG) electrode; a neural electrode implantable in a deep cerebellar nuclei of a subject; a data acquisition unit in communication with the EMG electrode for receiving and transmitting a EMG signal; and a processor in communication with the data acquisition unit, the processor generates a EMG pattern based on the EMG signal and outputs a stimulation signal to the neural electrode when the EMG pattern is indicative of an abnormal motor movement. A method of modulating an abnormal motor movement of a subject by using said neurostimulation system.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 31, 2020
    Inventors: Chi Him Eddie Ma, Chung Tin, Gajendra Kumar
  • Publication number: 20200116805
    Abstract: A test and measurement instrument, comprising at least one port configured to receive a signal from a device under test; a user interface configured to receive a user input, the user input indicating magnetic properties of a magnetic material of the device under test, and one or more processors. The one or more processors are configured to generate a hysteresis loop mask based on the magnetic properties of the magnetic material, determine whether the signal received from the device under test violates the hysteresis loop mask, and generate an alert when the signal received from the device under test violates the hysteresis loop mask. The test and measurement instrument may also include a display configured to display the hysteresis loop mask, the signal received from the device under test, and/or the alert.
    Type: Application
    Filed: October 15, 2018
    Publication date: April 16, 2020
    Applicant: Tektronix, Inc.
    Inventors: U N Vasudev, Gajendra Kumar Patro, Krishna N H Sri
  • Publication number: 20150032393
    Abstract: The disclosed technology relates to a method and apparatus for graphically displaying a switching cycle of a switching device. A switching voltage and a switching current are acquired for a device under test via a voltage probe and a current probe, respectively, for a plurality of switching cycles of the device under test. The switching current versus the switching voltage is plotted on a current versus voltage plot as a curve for each of the switching cycles. Each of the curves on the current versus voltage plot overlap each other and are displayed to a user.
    Type: Application
    Filed: April 21, 2014
    Publication date: January 29, 2015
    Applicant: TEKTRONIX, INC.
    Inventors: KRISHNA N H SRI, GAJENDRA KUMAR PATRO, ABHINAV BAL, GURUSHIDDAPPA M N