Patents by Inventor J. David Schell

J. David Schell 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).

  • Patent number: 11870491
    Abstract: A system for testing an optical fiber includes an optical source apparatus and an optical image sensor apparatus. The optical source apparatus includes a fiber optic connector that connects to a first end of the fiber, and a light emitting device which emits light into the first end of the fiber. The optical image sensor apparatus includes a fiber optic connector that connects to a second end of the fiber, an image sensor that receives light output from the second end of the fiber and generates corresponding image data, a lens array in an optical path between the fiber optic connector and the image sensor, and a processor coupled to the image sensor. The processor, in operation, determines a set of two-dimensional positions based on the image data output from the image sensor, and determines a test result based on the set of two-dimensional positions.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: January 9, 2024
    Assignee: Fluke Corporation
    Inventor: J. David Schell
  • Publication number: 20220321446
    Abstract: Apparatus and methods for testing network cabling includes processing circuitry that receives an indication of a user-selected network test of a plurality of network tests. The respective network tests have respective sets of test requirements with different levels of rigor. The test circuitry conducts a wire map test to identify which network tests can be conducted. Thereafter, a common set of test results is produced based on measurement of a common set of parameters pertinent to the network tests that can be conducted. The processing circuitry evaluates the common set of test results with respect to the respective sets of test requirements to determine one or more passing network tests. A plurality of test reports corresponding to the plurality of network tests is graphically displayed along a curve having a common center, wherein each test report indicates whether the corresponding network test is a passing network test.
    Type: Application
    Filed: April 6, 2022
    Publication date: October 6, 2022
    Inventors: Wayne S. Hoofnagle, J. David Schell, Jamie M. Martin
  • Publication number: 20220231759
    Abstract: A system for testing an optical fiber includes an optical source apparatus and an optical image sensor apparatus. The optical source apparatus includes a fiber optic connector that connects to a first end of the fiber, and a light emitting device which emits light into the first end of the fiber. The optical image sensor apparatus includes a fiber optic connector that connects to a second end of the fiber, an image sensor that receives light output from the second end of the fiber and generates corresponding image data, a lens array in an optical path between the fiber optic connector and the image sensor, and a processor coupled to the image sensor. The processor, in operation, determines a set of two-dimensional positions based on the image data output from the image sensor, and determines a test result based on the set of two-dimensional positions.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 21, 2022
    Inventor: J. David Schell
  • Patent number: 10747634
    Abstract: A testing device which includes a testing unit to perform test procedures on network elements of a communication network and a machine-readable code reader to read a machine-readable code associated with a network element of the communication network. The testing device further includes a computer device configured to: (i) determine a component type associated with the machine-readable code data read; (ii) select from a plurality of configuration files a configuration file based on the component type determined; and (iii) configure the test unit for a test procedure using the configuration file selected, and to perform the test procedure on the network element.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: August 18, 2020
    Assignee: FLUKE CORPORATION
    Inventors: Clinton J. Wooton, John Paul Hittel, J. David Schell
  • Publication number: 20200233156
    Abstract: Embodiments are directed to a dual end optical cleaning device. The dual end optical cleaning device includes a housing and first and second optical cleaning tools that are held in opposing directions in the housing. That is, the housing holds the first and second optical cleaning tools such that ends of the first and second optical cleaning tools are facing opposite directions of each other. The ends of the first and second optical cleaning tools are configured to clean optical fibers being held by different end pieces. In at least one embodiment, an end of the first optical cleaning tool is configured to couple to a connector holding an optical fiber, such as patch cord, while the second end of the second optical cleaning tool is configured to be inserted into a port of an electronic device or system, such as a patch panel port.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 23, 2020
    Inventors: J. David Schell, Wayne S. Hoofnagle, Roger L. Howell
  • Patent number: 10636134
    Abstract: A display apparatus for optical fiber inspection includes a processor programmed to receive, from a camera, a visual image of an array of endfaces of fiber optic cables being inspected, and to produce, on a display, an inspection interface that includes a first section and a second section. The first section shows a portion of the received image that includes a portion of the endfaces captured in the image. The second section shows a graphical map containing icons that depict representations of the endfaces in the array of endfaces. A selection window identifies the icons representing the endfaces that are currently shown in the first section. In response to user input, the display apparatus correspondingly modifies which endfaces are shown in the first section and modifies the position and/or size of the selection window in the second section.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: April 28, 2020
    Assignee: Fluke Corporation
    Inventors: Scott Tsukamaki, J. David Schell, Glenn Keltto
  • Publication number: 20200082521
    Abstract: A display apparatus for optical fiber inspection includes a processor programmed to receive, from a camera, a visual image of an array of endfaces of fiber optic cables being inspected, and to produce, on a display, an inspection interface that includes a first section and a second section. The first section shows a portion of the received image that includes a portion of the endfaces captured in the image. The second section shows a graphical map containing icons that depict representations of the endfaces in the array of endfaces. A selection window identifies the icons representing the endfaces that are currently shown in the first section. In response to user input, the display apparatus correspondingly modifies which endfaces are shown in the first section and modifies the position and/or size of the selection window in the second section.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 12, 2020
    Inventors: Scott Tsukamaki, J. David Schell, Glenn Keltto
  • Patent number: 10578516
    Abstract: One or more embodiments are directed to optical test instruments, such as fiber optic inspection scopes and optical power meters, for testing optical communication links, such as fiber optic connectors. The optical test instruments include a single test port that is able to operate in two modes of operation. In a first mode of operation, the optical test instrument is configured to provide an image of the endface of a fiber optic connector under test. In a second mode of operation, the optical test instrument is configured to measure power or power loss in an optical fiber under test. In that regard, the fiber optic connector only has to be coupled to a single port of an optical test instrument for a visual inspection of an endface of a fiber optic connector and a power test of the optical fiber under test.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: March 3, 2020
    Assignee: Fluke Corporation
    Inventors: J. David Schell, Richard G. Tyler
  • Patent number: 10541747
    Abstract: An integrating sphere-equipped optical measurement device and optical connector polarity and type identification and loss measurement are provided. The optical measurement device receives one or more optical signals that respectively emanate from one or more optical fibers of a plurality of optical fibers of an optical fiber cable. The optical measurement device determines one or more respective positions where the one or more optical signals impinged on a sensor. The optical measurement device determines based on the one or more positions, one or more receiving positions of the one or more optical signals, respectively. The optical measurement device determines a polarity of the optical fiber cable based on both the one or more receiving positions and one or more or transmitting positions of the one or more optical signals, respectively.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: January 21, 2020
    Assignee: Fluke Corporation
    Inventors: J. David Schell, Seymour Goldstein, Piotr Anatolij Levin
  • Patent number: 10481041
    Abstract: An optical testing device is provided. The testing device includes a position sensing detector (PSD) having an optical sensing area that is optically responsive to a first range of wavelengths. The PSD receives a plurality of optical signals having wavelengths within the first range and emitted through a respective plurality of optical fibers and detects a plurality of positions where the optical signals impinged on the optical sensing area for determining array polarity. The PSD receives a plurality of first optical signals having wavelengths within the first range and detects the polarity and a plurality of optical intensities of the first optical signals. The testing device includes a photodetector that is optically responsive to a second range of wavelengths different than the first range. The photodetector receives a plurality of second optical signals within the second range and detects a plurality of optical intensities of the second optical signals.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: November 19, 2019
    Assignee: Fluke Corporation
    Inventors: J. David Schell, Seymour Goldstein, Harlan L. Kassler, Jackson L. Salling
  • Publication number: 20190312638
    Abstract: An integrating sphere-equipped optical measurement device and optical connector polarity and type identification and loss measurement are provided. The optical measurement device receives one or more optical signals that respectively emanate from one or more optical fibers of a plurality of optical fibers of an optical fiber cable. The optical measurement device determines one or more respective positions where the one or more optical signals impinged on a sensor. The optical measurement device determines based on the one or more positions, one or more receiving positions of the one or more optical signals, respectively. The optical measurement device determines a polarity of the optical fiber cable based on both the one or more receiving positions and one or more or transmitting positions of the one or more optical signals, respectively.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 10, 2019
    Inventors: J. David Schell, Seymour Goldstein, Piotr Anatolij Levin
  • Patent number: 10374700
    Abstract: An integrating sphere-equipped optical measurement device and optical connector polarity and type identification and loss measurement are provided. The optical measurement device receives one or more optical signals that respectively emanate from one or more optical fibers of a plurality of optical fibers of an optical fiber cable. The optical measurement device determines one or more respective positions where the one or more optical signals impinged on a sensor. The optical measurement device determines based on the one or more positions, one or more receiving positions of the one or more optical signals, respectively. The optical measurement device determines a polarity of the optical fiber cable based on both the one or more receiving positions and one or more or transmitting positions of the one or more optical signals, respectively.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: August 6, 2019
    Assignee: Fluke Corporation
    Inventors: J. David Schell, Seymour Goldstein, Piotr Anatolij Levin
  • Patent number: 10355951
    Abstract: A test instrument provides suggested next operational step function to provide a user with assistance during testing. A display is provided to show the amount of a project that has been completed, for example as a percentage completed value. Individual test results may be saved to a ‘fix later’ list, which may be later accessed to re-test items that may not have passed on initial testing.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: July 16, 2019
    Assignee: Fluke Corporation
    Inventors: Sena E. R. Janky, Glenn Keltto, Steve O' Hara, J. David Schell, Elizabeth Bacon, Karen Jones
  • Patent number: 10302529
    Abstract: An integrating sphere-equipped optical measurement device and optical connector polarity and type identification and loss measurement are provided. The optical measurement device includes at least two photodetectors that are optically responsive over different ranges of wavelengths. The optical measurement device receives one or more optical signals emanate from optical fibers of an optical fiber cable. The optical measurement device determines an optical intensity or loss of the one or more optical signals based on a measurement made by a corresponding photodetector whose responsivity range includes a wavelength of the one or more optical signals. The optical measurement device determines one or more respective positions where the one or more optical signals impinged on a sensor. The optical measurement device determines a polarity of the optical fiber cable based on both the one or more positions and one or more or transmitting positions of the one or more optical signals, respectively.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: May 28, 2019
    Assignee: Fluke Corporation
    Inventors: J. David Schell, Seymour Goldstein, Piotr Anatolij Levin
  • Publication number: 20190050310
    Abstract: A testing device which includes a testing unit to perform test procedures on network elements of a communication network and a machine-readable code reader to read a machine-readable code associated with a network element of the communication network. The testing device further includes a computer device configured to: (i) determine a component type associated with the machine-readable code data read; (ii) select from a plurality of configuration files a configuration file based on the component type determined; and (iii) configure the test unit for a test procedure using the configuration file selected, and to perform the test procedure on the network element.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 14, 2019
    Inventors: Clinton J. Wooton, John Paul Hittel, J. David Schell
  • Patent number: 10161829
    Abstract: A system for certifying physical parameters of fiber optic cabling may include a test device coupled to an end of a fiber optic cable. The test device injects light into the fiber optic cable and conducts a certification test of physical parameters of the fiber optic cable. Based on observation of interaction of the injected light with the fiber optic cable, the test device tests one or more physical parameters of the cable and certifies whether the tested parameters satisfy corresponding parameters specified by a predetermined standard. A separate device may communicate a control signal (e.g., wirelessly) to the test device for controlling an operation of the certification test. The separate device is further operable to receive a result of the certification test from the test device. The separate device may further communicate with a remote computing device updates a database element with information regarding the certification test.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: December 25, 2018
    Assignee: Fluke Corporation
    Inventors: Theodore J. Brillhart, J. David Schell
  • Patent number: D895642
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: September 8, 2020
    Assignee: Fluke Corporation
    Inventors: Wayne S. Hoofnagle, Scott Tsukamaki, J. David Schell, Glenn Keltto
  • Patent number: D1000453
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: October 3, 2023
    Assignee: Fluke Corporation
    Inventors: Wayne S. Hoofnagle, J. David Schell, Jamie M. Martin
  • Patent number: D1006813
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: December 5, 2023
    Assignee: Fluke Corporation
    Inventors: Wayne S. Hoofnagle, Roger L Howell, J. David Schell, Harvey R. Trager
  • Patent number: D1024125
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: April 23, 2024
    Assignee: Fluke Corporation
    Inventors: Wayne S. Hoofnagle, J. David Schell, Jamie M. Martin