Patents by Inventor Joshua J. O'Brien

Joshua J. O'Brien 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: 10841217
    Abstract: Aspects of this disclosure relate to detecting a header of a packet. A receive signal path can provide a receive signal that includes packets and a guard preamble between successive packets of the packets. A receiver control circuit can trigger a timer that sets a time for detecting a header of a packet in response to detecting an end of a preamble of the packet.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: November 17, 2020
    Assignee: Analog Devices Global Unlimited Company
    Inventors: Michael W. O'Brien, Sudarshan Onkar, Joshua J. Nekl
  • Publication number: 20200256893
    Abstract: A system includes a plurality of oscilloscopes, each oscilloscope having an output port and an input port, a cable connecting the output port of an initial oscilloscope of the plurality of oscilloscopes to the input port of a second oscilloscope of the plurality of oscilloscopes, the initial oscilloscope having a processing element to generate a master run clock, the second oscilloscope having a processing element including a phase-locked loop to lock a slave run clock to the master run clock, wherein the processing element of one of the oscilloscopes executes code to cause the processing element to manipulate one of the run clocks to pass trigger information to another of the plurality of oscilloscopes.
    Type: Application
    Filed: February 11, 2020
    Publication date: August 13, 2020
    Applicant: Tektronix, Inc.
    Inventors: Daniel G. Knierim, Barton T. Hickman, Joshua J. O'Brien
  • Publication number: 20200200794
    Abstract: A test and measurement system can include a data store configured to store augmentation settings for dynamically augmenting a physical testing environment and a computing device coupled to the data store. The computing device can be configured to receive an input feed from the physical testing environment, create an augmentation image based on the augmentation settings and the input feed, and output the augmented image to be overlaid on the physical testing environment to augment a user's view of the physical testing environment.
    Type: Application
    Filed: June 18, 2018
    Publication date: June 25, 2020
    Applicant: Tektronix, Inc.
    Inventors: Tyler B. Niles, Daniel G. Knierim, Michael J. Wadzita, Joshua J. O'Brien, David Everett Burgess
  • Patent number: 10670632
    Abstract: A test and measurement instrument can include an input to receive an analog signal, a sampler to produce digital sample data corresponding to the analog signal, a buffer to store a portion of the sample data, a memory to store sample data from the buffer, a plurality of comparators to establish a vertical range, and a controller configured to configure the plurality of comparators to establish a first vertical range based on sample data in the buffer, and determine whether any of the sample data in the buffer transitions outside the first vertical range during a period of time.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: June 2, 2020
    Assignee: Tektronix, Inc.
    Inventors: David A. Holaday, Joshua J. O'Brien
  • Publication number: 20200166546
    Abstract: A method of classifying waveform data includes receiving input waveform data at a test and measurement system, accessing a repository of reference waveform data and corresponding classes, analyzing the input waveform data and the reference waveform data to designate a class of the input waveform data, and using the class designation to provide information to a user. A test and measurement system has a user interface, at least one input port, a communications port, a processor, the processor configured to execute instructions causing the processor to: receive input waveform data through at least one of the input port or the user interface; access a repository of reference waveform data; analyze the input waveform data using the reference waveform data; designate a class of the input waveform data; and use the class to provide information to the user about the input waveform.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 28, 2020
    Applicant: Tektronix, Inc.
    Inventors: Joshua J. O'Brien, Brian S. Mantel
  • Patent number: 10663839
    Abstract: An inspection device and method for use are described. The inspection device comprises a plurality of nested poles coupled to a wheeled tripod. The poles can be extended outward to create a longer composite pole. A camera can be mounted to the end of the composite pole and the tripod placed near a difficult-to-view location, such as a building roof. The mounted camera can be used to view the location, possibly through wireless transmission to a tablet or other device.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: May 26, 2020
    Assignee: O'Brien Engineering, Inc.
    Inventors: Norman J. O'Brien, Joshua W. McClure, Joseph D. O'Brien
  • Publication number: 20190363981
    Abstract: Aspects of this disclosure relate to detecting a header of a packet. A receive signal path can provide a receive signal that includes packets and a guard preamble between successive packets of the packets. A receiver control circuit can trigger a timer that sets a time for detecting a header of a packet in response to detecting an end of a preamble of the packet.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 28, 2019
    Inventors: Michael W. O'Brien, Sudarshan Onkar, Joshua J. Nekl
  • Publication number: 20180299491
    Abstract: A test and measurement instrument can include an input to receive an analog signal, a sampler to produce digital sample data corresponding to the analog signal, a buffer to store a portion of the sample data, a memory to store sample data from the buffer, a plurality of comparators to establish a vertical range, and a controller configured to configure the plurality of comparators to establish a first vertical range based on sample data in the buffer, and determine whether any of the sample data in the buffer transitions outside the first vertical range during a period of time.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 18, 2018
    Inventors: David A. Holaday, Joshua J. O'Brien
  • Patent number: 7868625
    Abstract: The slot interposer probe consists of a board with a male edge connector and a female edge connector connected to its opposed edges and circuitry electrically connecting the male edge connector to the female edge connector. The female edge connector may be a straddle-mount connector. The board may have an inner layer sandwiched between two outer layers. There may be a probe having a high-speed buffer connected to a plurality of capacitors, isolation resistors, and vias that intercepts signals carried by transmission lines on the inner layer. The vias may have a length equal to the inner layer's width. The high-speed buffer receives intercepted signals from the vias, copies and amplifies the signals, and drives them through coaxial cables to an acquisition module. The invention also includes a method of intercepting signals between a first electrical device and a second electrical device.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: January 11, 2011
    Assignee: Tektronix, Inc.
    Inventors: Devin G. Burt, Joshua J. O'Brien, David W. Koch, Roxann R. Jones
  • Publication number: 20090284268
    Abstract: The slot interposer probe consists of a board with a male edge connector and a female edge connector connected to its opposed edges and circuitry electrically connecting the male edge connector to the female edge connector. The female edge connector may be a straddle-mount connector. The board may have an inner layer sandwiched between two outer layers. There may be a probe having a high-speed buffer connected to a plurality of capacitors, isolation resistors, and vias that intercepts signals carried by transmission lines on the inner layer. The vias may have a length equal to the inner layer's width. The high-speed buffer receives intercepted signals from the vias, copies and amplifies the signals, and drives them through coaxial cables to an acquisition module. The invention also includes a method of intercepting signals between a first electrical device and a second electrical device.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Applicant: TEKTRONIX, INC.
    Inventors: Devin G. Burt, Joshua J. O'Brien, David W. Koch, Roxann R. Jones
  • Patent number: D894024
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: August 25, 2020
    Assignee: Tektronix, Inc.
    Inventors: Brian A. Hollenberg, Jessica Anna Dunn, Stephen LaFrance, Taylor S. K. Heen, Jonathan D. Clem, Joshua J. O'Brien, Preston S. Gabel, Marc A. Gessford