Patents by Inventor James O'Leary

James O'Leary 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: 11336125
    Abstract: Methods and devices addressing power tracking of transmission systems using antenna arrays are disclosed. The disclosed teachings may be implemented on a channel element to channel element basis, are adaptive and can be implemented on short time durations such as time slots. Power efficiency can be improved when applying the described methods to the design of systems with antenna arrays.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: May 17, 2022
    Assignee: pSemi Corporation
    Inventors: Donald Felt Kimball, Mark James O'Leary
  • Publication number: 20210210987
    Abstract: Methods and devices addressing power tracking of transmission systems using antenna arrays are disclosed. The disclosed teachings may be implemented on a channel element to channel element basis, are adaptive and can be implemented on short time durations such as time slots. Power efficiency can be improved when applying the described methods to the design of systems with antenna arrays.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 8, 2021
    Inventors: Donald Felt Kimball, Mark James O'Leary
  • Publication number: 20210135656
    Abstract: A phase shifter for altering the phase of a radio frequency signal is disclosed herein. A Lange coupler is used having reflective ports that are coupled to artificial transmission lines. The artificial transmission lines provide a reflection transmission path, the length of which can be determined by digital control lines. Transistors placed along the length of the central trace provide independent paths to ground that serve to shorten the electrical length of the ATL. Accordingly, by selectively turning the transistors on/off, the electrical length of the ATL can be selected and thus the amount of phase delay introduced by the phase shifter.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 6, 2021
    Inventors: John Birkbeck, Vikas Sharma, Kashish Pal, Mark James O'Leary
  • Patent number: 10944171
    Abstract: Devices and methods for reconfiguration of electronic circuits in multi-antenna communication systems are described. Using indexed programmable lookup tables, phase and gain information related to the antenna array implemented in such system is accessed. Same method may be used to reconfigure state of transceivers and other electronic circuits within such systems. The described methods and devices can be implemented using standardized serial interfaces.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 9, 2021
    Assignee: pSemi Corporation
    Inventor: Mark James O'Leary
  • Patent number: 10897162
    Abstract: Methods and devices addressing power tracking of transmission systems using antenna arrays are disclosed. The disclosed teachings may be implemented on a channel element to channel element basis, are adaptive and can be implemented on short time durations such as time slots. Power efficiency can be improved when applying the described methods to the design of systems with antenna arrays.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: January 19, 2021
    Assignee: pSemi Corporation
    Inventors: Donald Felt Kimball, Mark James O'Leary
  • Patent number: 10840889
    Abstract: A phase shifter for altering the phase of a radio frequency signal is disclosed herein. A Lange coupler is used having reflective ports that are coupled to artificial transmission lines. The artificial transmission lines provide a reflection transmission path, the length of which can be determined by digital control lines. Transistors placed along the length of the central trace provide independent paths to ground that serve to shorten the electrical length of the ATL. Accordingly, by selectively turning the transistors on/off, the electrical length of the ATL can be selected and thus the amount of phase delay introduced by the phase shifter.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: November 17, 2020
    Assignee: pSemi Corporation
    Inventors: John Birkbeck, Vikas Sharma, Kashish Pal, Mark James O'Leary
  • Publication number: 20200328623
    Abstract: Methods and devices addressing power tracking of transmission systems using antenna arrays are disclosed. The disclosed teachings may be implemented on a channel element to channel element basis, are adaptive and can be implemented on short time durations such as time slots. Power efficiency can be improved when applying the described methods to the design of systems with antenna arrays.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 15, 2020
    Inventors: Donald Felt Kimball, Mark James O'Leary
  • Patent number: 10715123
    Abstract: Circuits and methods for correction of errors in multi-stage stepwise signal modification circuits. Embodiments of the invention also provide flexibility to correct accuracy errors over a range of conditions, such as differences in signal frequency and/or temperature. A first embodiment includes sorting actual values of a multi-stage stepwise signal modification circuit to generate a monotonic listing of actual values; mapping input codes to a new order of codes corresponding to the sorted actual values; and providing mapping functionality to convert each input code into a mapped output code. A second embodiment includes searching, for each ideal value corresponding to an input code, all actual values of a multi-stage stepwise signal modification circuit for the actual value closest to the ideal value; mapping input codes to a new order of codes corresponding to the closest actual values; and providing mapping functionality to convert each input code into a mapped output code.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: July 14, 2020
    Assignee: pSemi Corporation
    Inventor: Mark James O'Leary
  • Publication number: 20200067185
    Abstract: Devices and methods for reconfiguration of electronic circuits in multi-antenna communication systems are described. Using indexed programmable lookup tables, phase and gain information related to the antenna array implemented in such system is accessed. Same method may be used to reconfigure state of transceivers and other electronic circuits within such systems. The described methods and devices can be implemented using standardized serial interfaces.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 27, 2020
    Inventor: Mark James O'Leary
  • Publication number: 20190296718
    Abstract: A phase shifter for altering the phase of a radio frequency signal is disclosed herein. A Lange coupler is used having reflective ports that are coupled to artificial transmission lines. The artificial transmission lines provide a reflection transmission path, the length of which can be determined by digital control lines. Transistors placed along the length of the central trace provide independent paths to ground that serve to shorten the electrical length of the ATL. Accordingly, by selectively turning the transistors on/off, the electrical length of the ATL can be selected and thus the amount of phase delay introduced by the phase shifter.
    Type: Application
    Filed: April 1, 2019
    Publication date: September 26, 2019
    Inventors: John Birkbeck, Vikas Sharma, Kashish Pal, Mark James O'Leary
  • Patent number: 10250339
    Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: April 2, 2019
    Assignee: pSemi Corporation
    Inventors: Vikas Sharma, Mark James O'Leary
  • Publication number: 20190068298
    Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 28, 2019
    Inventors: Vikas Sharma, Mark James O'Leary
  • Patent number: 10142039
    Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 27, 2018
    Assignee: pSemi Corporation
    Inventors: Vikas Sharma, Mark James O'Leary
  • Patent number: 10119373
    Abstract: A cutting tool adapted to be deployed into a well casing for cutting through casing strings comprises a nozzle for directing a jet of an abrasive slurry at the wall of a well casing to sever the well casing and a mechanical locking arranged provided above the nozzle, said locking arrangement comprises radially expandable means selectively engageable with an inner wall of the well casing within which the tool is deployed, to prevent axial and/or rotational movement of the tool in the well during cutting operations.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: November 6, 2018
    Assignee: PROSERV UK LIMITED
    Inventors: Adam James O'Leary, Mark Douglas Stephen, Richard James Taylor, Ross Richardson
  • Publication number: 20180248633
    Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Vikas Sharma, Mark James O'Leary
  • Patent number: 9991973
    Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: June 5, 2018
    Assignee: pSemi Corporation
    Inventors: Vikas Sharma, Mark James O'Leary
  • Publication number: 20180131453
    Abstract: A calibration architecture that enables accurate calibration of radio frequency (RF) integrated circuits (ICs) chips used in transceiver RF systems in a relatively simple testing environment. Embodiments of the invention include one or more on-chip switchable internal calibration paths that enable direct coupling of a portion of the on-chip circuit to an RF test system while isolating other circuitry on the chip. Some embodiments allow interconnection of switchable internal calibration paths between separate IC chips. Still other embodiments utilize internal switches and antenna mutual coupling to provide over-the-air calibration, alone or in combination with direct signal coupling via internal calibration paths. Periodic self-calibration of an RF IC can be performed after initial factory calibration, so that adjustments in desired performance parameters can be made while such an IC is embedded within a final system, and/or to take into account component degradation due to age or other factors.
    Type: Application
    Filed: July 24, 2017
    Publication date: May 10, 2018
    Inventors: Vikas Sharma, Mark James O'Leary
  • Patent number: 9879830
    Abstract: A device and method for chemicals to be fed into a water system, treating the water system as it enters, for example, a fire protection mains and/or fire protection systems (FPS) to protect and maintain the longevity of the water system preventing damages to the water system or enhancing the operation characteristics of the system. This device is a treatment system that may be installed as a portable or permanent device with chemicals such as, corrosion inhibitors, wetting agents, polymeric dispersants, biocides, biostats or other water chemical enhancing effects with means for injecting the chemicals into the fire protection system or a bypass feed system utilizing the fluid means without the need for any electricity. Activation of the pump occurs when water enters the FPS mains and FPS sprinkler system from an outside source. Valving is included to isolate the pump and drums, storage tank to prevent backflow from the FPS.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: January 30, 2018
    Assignee: Huguenot Laboratories
    Inventors: Michael John O'Leary, Tim James O'Leary
  • Patent number: 9592568
    Abstract: A subsea friction welding apparatus comprises a chuck for supporting and retaining a weld item prior to welding the weld item to a work-piece, said chuck comprises a plurality of jaws having an internal profile to grip a corresponding profiled surface on the weld item and means for radially expanding the internal profile of the jaws of the chuck, said means actuable by axial insertion of the weld item into the chuck thereby avoiding relative rotation of the chuck and the weld item during insertion of the weld item into the chuck. In operation of the method, a supply of weld items and a weld head are deployed to a subsea location and the weld items are loaded via ROV into the weld head at the subsea location.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: March 14, 2017
    Assignee: PROSERV UK LIMITED
    Inventors: Adam James O'Leary, David Benjamin Smith, Nathan Alan Paculba, Kevin Grant Munro, David Ewen Gibson
  • Publication number: 20150343558
    Abstract: A subsea friction welding apparatus comprises a chuck for supporting and retaining a weld item prior to welding the weld item to a work-piece, said chuck comprises a plurality of jaws having an internal profile to grip a corresponding profiled surface on the weld item and means for radially expanding the internal profile of the jaws of the chuck, said means actuable by axial insertion of the weld item into the chuck thereby avoiding relative rotation of the chuck and the weld item during insertion of the weld item into the chuck. In operation of the method, a supply of weld items and a weld head are deployed to a subsea location and the weld items are loaded via ROV into the weld head at the subsea location.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 3, 2015
    Applicant: PROSERV UK LTD.
    Inventors: Adam James O'Leary, David Benjamin Smith, Nathan Alan Paculba, Kevin Grant Munro, David Ewen Gibson