Patents by Inventor Derek Lautenschlager

Derek Lautenschlager 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).

  • Real-time digital data degradation detection
    Patent number: 11973680
    Abstract: Systems and methods described herein monitor real-time digital data for degradation. A merging unit may measure electrical parameters in an electric power system using a sensor component and may generate a stream of digital data representing measured electrical parameters. The merging unit may transmit the stream of digital data representing measured electrical parameters and receive a plurality of data frames using an interface. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination of whether a subset of the plurality of data frames satisfies the plurality of digital metrics, and the subset of the plurality of data frames fails at least one of the plurality of digital metrics. The merging unit may implement a response when the subset of the plurality of data frames fails at least one of the plurality of digital metrics.
    Type: Grant
    Filed: February 9, 2023
    Date of Patent: April 30, 2024
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Derek Lautenschlager, Arun Shrestha, Nishchal Sharma, Vinodev E. Rajasekaran, Karthi Sellakkannu, Sajal Harmukh
  • Sample time offset alignment of electric power system samples independent of a common time source
    Patent number: 11949222
    Abstract: Disclosed herein is a system for time aligning electric power system measurements at an intelligent electronic device (IED) using samples and sample time offset from merging units. The merging units do not require access to a common time signal. The IED does not require storage of a communication latency with the merging units. The sample time offset corresponds to a latency between obtaining the sample and receipt of the sample at the IED. The IED aligns samples from various merging units using sample time offset values communicated from the merging units to the IED. The IED performs monitoring and protection functions using the time aligned samples.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: April 2, 2024
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Lisa Gayle Nelms, Tony J. Lee, Bryon S. Bridges, Derek Lautenschlager, Guillermo Ramirez Conejo, Stephanie L. McDaid, Nishchal Sharma, Bharat Nalla, Vinodev E. Rajasekaran
  • REAL-TIME DIGITAL DATA DEGRADATION DETECTION
    Publication number: 20230179505
    Abstract: Systems and methods described herein monitor real-time digital data for degradation. A merging unit may measure electrical parameters in an electric power system using a sensor component and may generate a stream of digital data representing measured electrical parameters. The merging unit may transmit the stream of digital data representing measured electrical parameters and receive a plurality of data frames using an interface. A digital data degradation detection subsystem may analyze a plurality of digital metrics associated with the plurality of data frames and make a determination of whether a subset of the plurality of data frames satisfies the plurality of digital metrics, and the subset of the plurality of data frames fails at least one of the plurality of digital metrics. The merging unit may implement a response when the subset of the plurality of data frames fails at least one of the plurality of digital metrics.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 8, 2023
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Derek Lautenschlager, Arun Shrestha, Nishchal Sharma, Vinodev E. Rajasekaran, Karthi Sellakkannu, Sajal Harmukh
  • SAMPLE TIME OFFSET ALIGNMENT OF ELECTRIC POWER SYSTEM SAMPLES INDEPENDENT OF A COMMON TIME SOURCE
    Publication number: 20220239089
    Abstract: Disclosed herein is a system for time aligning electric power system measurements at an intelligent electronic device (IED) using samples and sample time offset from merging units. The merging units do not require access to a common time signal. The IED does not require storage of a communication latency with the merging units. The sample time offset corresponds to a latency between obtaining the sample and receipt of the sample at the IED. The IED aligns samples from various merging units using sample time offset values communicated from the merging units to the IED. The IED performs monitoring and protection functions using the time aligned samples.
    Type: Application
    Filed: November 30, 2021
    Publication date: July 28, 2022
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Lisa Gayle Nelms, Tony J. Lee, Bryon S. Bridges, Derek Lautenschlager, Guillermo Ramirez Conejo, Stephanie L. McDaid, Nishchal Sharma, Bharat Nalla, Vinodev E. Rajasekaran