Patents by Inventor John J. McGrath

John J. McGrath 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: 9805458
    Abstract: A method for detecting defective pixels and screen imperfections is provided and include the steps of: positioning a mobile device having a display screen in a testing chamber, capturing an image of the display screen using a camera directed to a the display screen, and performing a perform a pixel detection analysis of the image.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 31, 2017
    Assignee: Communications Test Design, Inc.
    Inventors: Gerald J. Parsons, Michael P. Parsons, Leo D. Parsons, Nidhin Davis, Andrew Sieben, Sean Parsons, Mohammad R. Paknejad, Marc Aurel Kamsu Tennou, John J. McGrath
  • Publication number: 20170278232
    Abstract: A method for detecting defective pixels and screen imperfections is provided and include the steps of: positioning a mobile device having a display screen in a testing chamber, capturing an image of the display screen using a camera directed to a the display screen, and performing a perform a pixel detection analysis of the image.
    Type: Application
    Filed: January 18, 2017
    Publication date: September 28, 2017
    Applicant: Communications Test Design, Inc.
    Inventors: Gerald J. Parsons, Michael P. Parsons, Leo D. Parsons, Nidhin Davis, Andrew Sieben, Sean Parsons, Mohammad R. Paknejad, Marc Aurel Kamsu Tennou, John J. McGrath
  • Patent number: 8418219
    Abstract: A method and apparatus for simultaneously testing multiple set-top boxes uses a test equipment structure or frame for receiving a known good set-top box and a plurality of set-top boxes to be tested against a known good set-top box. A movable shelf structure is provided for electrically connecting at least each set-top box to be tested by a single sliding motion. Connectors on a backplane are made moveable to adjust for slight variations in the position of the connectors on the set-top boxes. An infrared control system generates an infrared signal to transmit to each set-top box and other related equipment in the testing operation such as televisions and receivers such that the function of each set-top box and related equipment is the same at each instant. Analyzing equipment is provided to analyze at least the audio output of each set-top box being tested at a selected channel and compared to the audio output of the known good set-top box.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: April 9, 2013
    Assignee: Communications Test Design, Inc.
    Inventors: Gerald J. Parsons, Michael P. Parsons, Jobin N. Thomas, John Goldman, John J. McGrath, Gordon Gar-Tung Lo, Peik-Chein Khor
  • Patent number: 6648506
    Abstract: The present invention provides a fluorescent imaging thermographic method and system for use particularly in surface temperature measurements, which are reproducible over time. The invention provides a temperature-sensitive fluorescent probe comprising a rare earth compound in an ultraviolet and fluorescence transparent medium wherein the intensity of fluorescence varies as the temperature varies, in particular, provided are probes comprising Europium(1,1,1,5,5,5-hexafluoroacetylacetone)3 for measuring temperatures greater than 24° C., and Terbium(1,1,1,5,5,5-hexafluoroacetylacetone)3 for measuring temperatures less than 24° C. The probe is applied as a layer to a surface, exposed to fluorescence-inducing energy, and emitted fluorescence measured. A ratio imaging algorithm enables the temperature at each location on the surface to be determined.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: November 18, 2003
    Assignee: Board of Trustees of Michigan State University
    Inventors: John J. McGrath, Bin Lian
  • Publication number: 20030128737
    Abstract: The present invention provides a fluorescent imaging thermographic method and system for use particularly in surface temperature measurements, which are reproducible over time. The invention provides a temperature-sensitive fluorescent probe comprising a rare earth compound in an ultraviolet and fluorescence transparent medium wherein the intensity of fluorescence varies as the temperature varies, in particular, provided are probes comprising Europium (1,1,1,5,5,5-hexafluoroacetylacetone)3 for measuring temperatures greater than 24° C., and Terbium(1,1,1,5,5,5-hexafluoroacetylacetone)3 for measuring temperatures less than 24° C. The probe is applied as a layer to a surface, exposed to fluorescence-inducing energy, and emitted fluorescence measured. A ratio imaging algorithm enables the temperature at each location on the surface to be determined.
    Type: Application
    Filed: September 7, 2001
    Publication date: July 10, 2003
    Applicant: Board of Trustees operating Michigan State University
    Inventors: John J. McGrath, Bin Lian
  • Patent number: 6375672
    Abstract: The present invention provides a method for strengthening collagen in collagenous tissue which uses the controlled application of heat to induce shrinkage or contraction of the collagen in the tissue and a cross-linking means which cross-links the shrunken collagen in the tissue thereby stabilizing and strengthening collagenous tissue. In particular, the present invention provides an in vivo method for treating joint instability problems, controlled manipulation of skin structure and properties, and other problems involving collagen-containing tissues. The present invention further provides an in vitro method for stabilizing collagenous tissue for use in vivo or in vitro. Further, the present invention provides a method for treating collagenous tissue and testing the strength and stability of the treated tissue.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: April 23, 2002
    Assignee: Board of Trustees of Michigan State University
    Inventors: Alptekin Aksan, John J. McGrath
  • Patent number: 5841892
    Abstract: An apparatus and method for determining the Fiber Orientation Distribution (FOD) in an injection molded polymer is described. The transparent sample (12) is comprised of a matrix material, reinforcing fibers and opaque tracer fibers (12A) which are analyzed to determine the FOD and the fiber length of all fibers in the sample. The sample is formed in an injection molding apparatus (14) which includes an injection mold (16) and an injection molding unit (34). The sample is constructed and placed in the imaging apparatus (58) in order to be optically sectioned. The imaging apparatus includes an inverted microscope (60), a camera with a controller (62), a motion controller board (64) and a frame grabber (66). The sample is scanned along three (3) axes in x-y plane in the field of view of the microscope at increasing depths in the sample along the z-axis which is the line of sight of the microscope. The 3D images are analyzed to determine the FOD and fiber length of the fibers in the sample.
    Type: Grant
    Filed: July 13, 1997
    Date of Patent: November 24, 1998
    Assignee: Board of Trustees operating Michigan State University
    Inventors: John J. McGrath, Jeffrey M. Wille
  • Patent number: 5029290
    Abstract: An alarm system suitable for use in a telecommunications network in which a central switching system is capable of selectively providing a signal of a predetermined polarity to a plurality of remotely located stations without being dependent upon or impeding the ability of the central switching system to process relatively high volume communications traffic. Each of the remote stations is connected to the telecommunications network by an electrical conduction path. The stations are substantially unresponsive to the predetermined polarity signal. In response to an alarm indication signal, the system effects a reversal in the polarity of the signal provided to a selected subset of the remote stations. Each station in the selected subset responds to the polarity reversal by indicating an alarm condition.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: July 2, 1991
    Assignee: Communications Test Design, Inc.
    Inventors: Donald F. Parsons, Brian D. Greenwald, John J. McGrath, Michael Dudek, Leo D. Parsons
  • Patent number: 5005197
    Abstract: A telephone line card tester operates by transmitting test data to the digital port of a telephone line interface card, and by subsequently receiving the data which is transmitted from this card through the same digital port. Once received, the data pattern is compared with an expected data pattern. A difference between the received data and the expected data is indicative of a defect in the telephone line interface card. To meet telephone line interface card timing consideration, the transmission of data to the interface card and the analysis of data received from the card are performed by separate subsystems. To accomplish this task, the telephone line interface card is tested in a test fixture which includes a digital line interface card tester, and a communications test set. The communications test set is used for such functions as ring generation and line simulation.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: April 2, 1991
    Assignee: Communications Test Design, Inc.
    Inventors: Gerald J. Parsons, Brian D. Greenwald, John J. McGrath, Stephen W. Andrasko