Patents by Inventor Dileepa Prabhakar

Dileepa Prabhakar 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: 20240369704
    Abstract: An acoustic analysis system includes an acoustic sensor array that receives acoustic signals from a target scene and outputs acoustic data based on the received acoustic signals. A processor receives a plurality of acoustic data sets from the acoustic sensor array, representative of the target scene at different points in time. The processor determines one or more locations within the target scene represented by the plurality of acoustic data sets, each being a location of an acoustic signal emitted from the target scene. For each acoustic signal, the processor classifies the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal, generates accumulated-time acoustic image data based on the plurality of acoustic data sets, and generates an accumulated-time display image for presentation on a display.
    Type: Application
    Filed: March 12, 2024
    Publication date: November 7, 2024
    Inventors: Dileepa Prabhakar, Michael D. Stuart
  • Patent number: 12117523
    Abstract: An acoustic analysis system includes an acoustic sensor array that receives acoustic signals from a target scene and outputs acoustic data based on the one or more acoustic signals. A processor receives a first set of acoustic data representing a first portion of the target scene and having a first field of view (FOV), generates a first acoustic image based on the first set of acoustic data, receives a second set of acoustic data representing a second portion of the target scene and having a second FOV, wherein the second FOV is different than the first FOV, generates a second acoustic image based on the second set of acoustic data, registers the first acoustic image and the second acoustic image to form an aligned first acoustic image and second acoustic image, and generate a panorama comprising the aligned first acoustic image and second acoustic image for presentation on a display.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: October 15, 2024
    Assignee: Fluke Corporation
    Inventors: Dileepa Prabhakar, Michael D. Stuart
  • Publication number: 20240264305
    Abstract: Some systems include an acoustic sensor array configured to receive acoustic signals, an electromagnetic imaging tool configured to receive electromagnetic radiation, a user interface, a display, and a processor. The processor can receive electromagnetic data from the electromagnetic imaging tool and acoustic data from the acoustic sensor array. The processor can generate acoustic image data of the scene based on the received acoustic data, generate a display image comprising combined acoustic image data and electromagnetic image data, and present the display image on the display. The processor can receive an annotation input from the user interface and update the display image based on the received annotation input. The processor can be configured to determine one or more acoustic parameters associated with the received acoustic signal and determine a criticality associated with the acoustic signal.
    Type: Application
    Filed: April 15, 2024
    Publication date: August 8, 2024
    Inventors: Michael D. Stuart, Dileepa Prabhakar, Scott M. Tsukamaki, Darwin C. Witt
  • Publication number: 20240151575
    Abstract: A handheld acoustic imaging tool and method of imaging acoustic signals includes receiving acoustic signals from a scene, identifying a subset of the acoustic signals based on a predetermined condition of an acoustic parameter of the acoustic signals, and generating a display image using electromagnetic image data representative of electromagnetic radiation from the scene. The display image visually indicates a location in the scene corresponding to the subset of the acoustic signals. Generating the display image may further include using acoustic image data representative of the subset of the acoustic signals, wherein the electromagnetic image data and the acoustic image data are shown together in the display image. In some cases, the acoustic image data in the display image may be palettized according to the acoustic parameter, for example according to an amount, an amount of change, or a rate of change, of the acoustic parameter.
    Type: Application
    Filed: January 16, 2024
    Publication date: May 9, 2024
    Inventors: Michael D. Stuart, Dileepa Prabhakar
  • Patent number: 11965958
    Abstract: Some systems include an electromagnetic imaging tool configured to receive electromagnetic radiation, a communication interface, a processor in communication with the electromagnetic imaging tool and the communication interface, and a housing. Systems can include a first sensor head having a first plurality of acoustic sensor elements arranged in a first acoustic sensor array. The communication interface can provide communication between the processor and the sensor head via wired or wireless communication. The communication interface can comprise a docking port in communication with the processor and configured to removably receive a corresponding docking mechanism of the first sensor head. Some systems may include a second sensor head having a second plurality of acoustic sensor elements. The second sensor head may be interchangeably connectable to the communication interface and/or the first sensor head.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: April 23, 2024
    Assignee: Fluke Corporation
    Inventors: Michael D. Stuart, Dileepa Prabhakar
  • Patent number: 11960002
    Abstract: Some systems include an acoustic sensor array configured to receive acoustic signals, an electromagnetic imaging tool configured to receive electromagnetic radiation, a user interface, a display, and a processor. The processor can receive electromagnetic data from the electromagnetic imaging tool and acoustic data from the acoustic sensor array. The processor can generate acoustic image data of the scene based on the received acoustic data, generate a display image comprising combined acoustic image data and electromagnetic image data, and present the display image on the display. The processor can receive an annotation input from the user interface and update the display image based on the received annotation input. The processor can be configured to determine one or more acoustic parameters associated with the received acoustic signal and determine a criticality associated with the acoustic signal.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: April 16, 2024
    Assignee: Fluke Corporation
    Inventors: Michael D. Stuart, Dileepa Prabhakar, Scott M. Tsukamaki, Darwin C. Witt
  • Publication number: 20240118416
    Abstract: Acoustic imaging systems can include an acoustic sensing array, an electromagnetic imaging tool, a display, and an audio device. A processor can receive data from the acoustic sensor array and the electromagnetic imaging tool to generate a display image combining acoustic image data and electromagnetic image data. Systems can include an audio device that receives an audio output from the processor and outputs audio feedback signals to a user. The audio feedback signals can represent acoustic signals from an acoustic scene. Systems can provide a display image to a user including acoustic image data, and a user can select an acoustic signal for which to provide a corresponding audio output to an audio device. Audio outputs and display images can change dynamically in response to a change in pointing of the acoustic sensing array, such as by changing a stereo audio output.
    Type: Application
    Filed: September 15, 2023
    Publication date: April 11, 2024
    Inventors: Michael D. Stuart, Henk Koppelmans, Dileepa Prabhakar, Scott M. Tsukamaki, Darwin C. Witt
  • Patent number: 11953592
    Abstract: An acoustic analysis system includes an acoustic sensor array that receives acoustic signals from a target scene and outputs acoustic data based on the received acoustic signals. A processor receives a plurality of acoustic data sets from the acoustic sensor array, representative of the target scene at different points in time. The processor determines one or more locations within the target scene represented by the plurality of acoustic data sets, each being a location of an acoustic signal emitted from the target scene. For each acoustic signal, the processor classifies the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal, generates accumulated-time acoustic image data based on the plurality of acoustic data sets, and generates an accumulated-time display image for presentation on a display.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: April 9, 2024
    Assignee: Fluke Corporation
    Inventors: Dileepa Prabhakar, Michael D. Stuart
  • Patent number: 11913829
    Abstract: Systems and methods directed toward acoustic analysis can include an acoustic sensor array comprising a plurality of acoustic sensor elements, an electromagnetic imaging tool, and a processor in communication with the acoustic sensor array and the electromagnetic imaging tool. The processor can be configured to analyze acoustic data to extract one or more acoustic parameters representative of acoustic signals at one or more locations in an acoustic scene and generate a display image that includes electromagnetic image data and acoustic image data. The display image can further include information indicative of the one or more acoustic parameters at one or more locations in the acoustic scene, such as including acoustic image data in the display image at locations in the scene at which the one or more acoustic parameters satisfies a predetermined condition.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: February 27, 2024
    Assignee: Fluke Corporation
    Inventors: Michael D. Stuart, Dileepa Prabhakar
  • Publication number: 20230343066
    Abstract: Methods and apparatuses that utilize machine learning techniques to identify maintenance assets using sets of machine-health diagnostic images and link individual machine-health diagnostic images to the identified maintenance assets are described. The sets of machine-health diagnostic images may include a set of thermal images, a set of visible-light images, and/or a set of acoustic images. An identified maintenance asset may comprise an individual machine associated with a unique asset identifier.
    Type: Application
    Filed: April 21, 2023
    Publication date: October 26, 2023
    Inventors: Matthew F. Schmidt, Michael D. Stuart, Seyed Navid Roohani Isfahani, Shreyas Shivaram Shastry, Dileepa Prabhakar, Ronald Ainsworth
  • Patent number: 11762089
    Abstract: Acoustic imaging systems can include an acoustic sensing array, an electromagnetic imaging tool, a display, and an audio device. A processor can receive data from the acoustic sensor array and the electromagnetic imaging tool to generate a display image combining acoustic image data and electromagnetic image data. Systems can include an audio device that receives an audio output from the processor and outputs audio feedback signals to a user. The audio feedback signals can represent acoustic signals from an acoustic scene. Systems can provide a display image to a user including acoustic image data, and a user can select an acoustic signal for which to provide a corresponding audio output to an audio device. Audio outputs and display images can change dynamically in response to a change in pointing of the acoustic sensing array, such as by changing a stereo audio output.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: September 19, 2023
    Assignee: Fluke Corporation
    Inventors: Michael D. Stuart, Henk Koppelmans, Dileepa Prabhakar, Scott M. Tsukamaki, Darwin C. Witt
  • Publication number: 20220338740
    Abstract: A system for screening persons' temperatures comprises an imaging device configured to generate imagery data, including infrared image data, of a first scene and a second scene. The system receives imagery data from the first scene, identifies persons in the scene using the imagery data, and determines each person's temperature. The system further compares the persons' temperatures to a threshold and indicates a person should be directed to the second scene if the person's temperature is above a threshold. Subsequently, the system determines and compares the person's temperature in the second scene and provides an indication if the person's temperature exceeds a second threshold. Further, a confidence factor can be associated with determinations of persons' temperatures.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Inventors: Matthew F. Schmidt, Han B. Tran, Wayne S. Hoofnagle, Dileepa Prabhakar
  • Publication number: 20220170780
    Abstract: Systems and methods directed toward acoustic analysis can include an acoustic sensor array comprising a plurality of acoustic sensor elements, an electromagnetic imaging tool, and a processor in communication with the acoustic sensor array and the electromagnetic imaging tool. The processor can be configured to analyze acoustic data to extract one or more acoustic parameters representative of acoustic signals at one or more locations in an acoustic scene and generate a display image that includes electromagnetic image data and acoustic image data. The display image can further include information indicative of the one or more acoustic parameters at one or more locations in the acoustic scene, such as including acoustic image data in the display image at locations in the scene at which the one or more acoustic parameters satisfies a predetermined condition.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 2, 2022
    Inventors: Michael D. Stuart, Dileepa Prabhakar
  • Publication number: 20220082692
    Abstract: An acoustic analysis system includes an acoustic sensor array that receives acoustic signals from a target scene and outputs acoustic data based on the one or more acoustic signals. A processor receives a first set of acoustic data representing a first portion of the target scene and having a first field of view (FOV), generates a first acoustic image based on the first set of acoustic data, receives a second set of acoustic data representing a second portion of the target scene and having a second FOV, wherein the second FOV is different than the first FOV, generates a second acoustic image based on the second set of acoustic data, registers the first acoustic image and the second acoustic image to form an aligned first acoustic image and second acoustic image, and generate a panorama comprising the aligned first acoustic image and second acoustic image for presentation on a display.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Inventors: Dileepa Prabhakar, Michael D. Stuart
  • Publication number: 20220082691
    Abstract: An acoustic analysis system includes an acoustic sensor array that receives acoustic signals from a target scene and outputs acoustic data based on the received acoustic signals. A processor receives a plurality of acoustic data sets from the acoustic sensor array, representative of the target scene at different points in time. The processor determines one or more locations within the target scene represented by the plurality of acoustic data sets, each being a location of an acoustic signal emitted from the target scene. For each acoustic signal, the processor classifies the acoustic signal as an intermittent acoustic signal or a continuous acoustic signal, generates accumulated-time acoustic image data based on the plurality of acoustic data sets, and generates an accumulated-time display image for presentation on a display.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Inventors: Dileepa Prabhakar, Michael D. Stuart
  • Patent number: 11209306
    Abstract: Systems and methods directed toward acoustic analysis can include an acoustic sensor array comprising a plurality of acoustic sensor elements, an electromagnetic imaging tool, and a processor in communication with the acoustic sensor array and the electromagnetic imaging tool. The processor can be configured to analyze acoustic data to extract one or more acoustic parameters representative of acoustic signals at one or more locations in an acoustic scene and generate a display image that includes electromagnetic image data and acoustic image data. The display image can further include information indicative of the one or more acoustic parameters at one or more locations in the acoustic scene, such as including acoustic image data in the display image at locations in the scene at which the one or more acoustic parameters satisfies a predetermined condition.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: December 28, 2021
    Assignee: Fluke Corporation
    Inventors: Michael D. Stuart, Dileepa Prabhakar
  • Publication number: 20210311187
    Abstract: Some systems include an acoustic sensor array configured to receive acoustic signals, an electromagnetic imaging tool configured to receive electromagnetic radiation, a position sensor configured to output position information, memory, and a processor. The processor can receive acoustic data from the acoustic sensor array and generate acoustic image data from the received acoustic data. The processor can receive electromagnetic image data from the electromagnetic imaging tool and combine the generated acoustic image data and the received electromagnetic image data to generate a display image. The processor can receive position information from the position sensor, and save the display image in memory associated with the received position information. Position information can be stored in metadata of the display image or displayed within the display image. The processor can be configured to link images stored in memory, such as based on position information associated with such images.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 7, 2021
    Inventors: Michael D. Stuart, Dileepa Prabhakar, Scott M. Tsukamaki, Darwin C. Witt
  • Publication number: 20210310857
    Abstract: Some systems include an electromagnetic imaging tool configured to receive electromagnetic radiation, a communication interface, a processor in communication with the electromagnetic imaging tool and the communication interface, and a housing. Systems can include a first sensor head having a first plurality of acoustic sensor elements arranged in a first acoustic sensor array. The communication interface can provide communication between the processor and the sensor head via wired or wireless communication. The communication interface can comprise a docking port in communication with the processor and configured to removably receive a corresponding docking mechanism of the first sensor head. Some systems may include a second sensor head having a second plurality of acoustic sensor elements. The second sensor head may be interchangeably connectable to the communication interface and/or the first sensor head.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 7, 2021
    Inventors: Michael D. Stuart, Dileepa Prabhakar
  • Publication number: 20210310856
    Abstract: Systems can include an acoustic sensor array configured to receive acoustic signals, an illuminator configured to emit electromagnetic radiation, an electromagnetic imaging tool configured to receive electromagnetic radiation, a distance measuring tool, and a processor. The processor can illuminate the target scene via the illuminator, receive electromagnetic image data from the electromagnetic imaging tool representative of the illuminated scene, receive acoustic data from the acoustic sensor array, and receive distance information from the distance measuring tool. The processor can be further configured to generate acoustic image data of the scene based on the received acoustic data and received distance information and generate a display image comprising combined acoustic image data and electromagnetic image data.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 7, 2021
    Inventors: Michael D. Stuart, Dileepa Prabhakar, Joseph V. Ferrante, Scott M. Tsukamaki, Darwin C. Witt
  • Publication number: 20210311188
    Abstract: Some systems include an acoustic sensor array configured to receive acoustic signals, an electromagnetic imaging tool configured to receive electromagnetic radiation, a user interface, a display, and a processor. The processor can receive electromagnetic data from the electromagnetic imaging tool and acoustic data from the acoustic sensor array. The processor can generate acoustic image data of the scene based on the received acoustic data, generate a display image comprising combined acoustic image data and electromagnetic image data, and present the display image on the display. The processor can receive an annotation input from the user interface and update the display image based on the received annotation input. The processor can be configured to determine one or more acoustic parameters associated with the received acoustic signal and determine a criticality associated with the acoustic signal.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 7, 2021
    Inventors: Michael D. Stuart, Dileepa Prabhakar, Scott M. Tsukamaki, Darwin C. Witt