Patents by Inventor David Brown

David Brown 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: 10736778
    Abstract: Devices can be implanted in an eye to treat glaucoma. The devices described herein include a body defining a lumen and having first and second ends and external and lumenal surfaces. The body has a length sufficient to provide fluid communication between the anterior chamber and tear film of the eye through the lumen when the device is implanted in the sclera. By the strategic selection of particular materials of construction, and/or by controlling the configuration and size of the lumen, in some embodiments, the device is a filterless construct. In some embodiments, a filter is included. The glaucoma treatment devices as provided herein are designed to prevent bacterial ingress and to provide the required level of outflow resistance to achieve a desired intraocular pressure. Methods of treating glaucoma wherein the device is implanted in the sclera of an afflicted eye are also described.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: August 11, 2020
    Assignee: MicroOptx Inc.
    Inventor: J. David Brown
  • Patent number: 10742258
    Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing correlations with combinational pseudo-random noise (PRN) codes generated for different bit positions. The GNSS receiver receives a signal including a PRN code modulated by CSK to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes, each representing a different shift in chips to the PRN code. The GNSS receiver performs a chip-by-chip linear combination of a group of receiver codes for each bit position of the CSK modulated symbol. The GNSS receiver correlates the received signal with each combinational PRN code to produce a binary value that is the CSK modulated symbol.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 11, 2020
    Assignee: NovAtel Inc.
    Inventors: David Brown, Patrick C. Fenton
  • Patent number: 10742257
    Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing a binary search. The GNSS receiver receives a signal including a pseudorandom noise (PRN) code modulated by code shift keying (CSK) to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes each representing a different shift in chips to the PRN code. The GNSS receiver performs a linear combination of portions of the receiver codes. In an embodiment, the GNSS receiver compares correlation power level value for respective portions of the receiver codes to demodulate the CSK data. In a further embodiment, the GNSS receiver compares the correlation power level values for portions of receiver codes with power detection threshold values to demodulate the CSK data. In a further embodiment, the GNSS receiver utilizes signs of the correlation power level values to demodulate the CSK data.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: August 11, 2020
    Assignee: NovAtel Inc.
    Inventors: Patrick C. Fenton, David Brown
  • Publication number: 20200250763
    Abstract: Embodiments of the invention provide techniques for improving clarity of disclosure materials provided to investors, by enabling securities issuers, intermediaries and/or other entities to create and disseminate clear and concise summary-level information on individual securities to investors to enable informed investment decisions. The information may include a summary version of the full statutory prospectus (a “summary prospectus”). A summary prospectus may include a concise, “plain English” synopsis and/or representation of certain information contained in the full statutory prospectus, such as a security's investment objectives and strategies, costs, risks and/or other information.
    Type: Application
    Filed: April 20, 2020
    Publication date: August 6, 2020
    Inventors: Russel E. Planitzer, Mark Asdoorian, David Brown, Ying Chen, Leonard Driscoll, Jeffrey B. Levering, Alex Magary
  • Patent number: 10725947
    Abstract: Techniques are described herein for efficient movement of data from a source memory to a destination memory. In an embodiment, in response to a particular memory location being pushed into a first register within a first register space, the first set of electronic circuits accesses a descriptor stored at the particular memory location. The descriptor indicates a width of a column of tabular data, a number of rows of tabular data, and one or more tabular data manipulation operations to perform on the column of tabular data. The descriptor also indicates a source memory location for accessing the tabular data and a destination memory location for storing data manipulation result from performing the one or more data manipulation operations on the tabular data.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: July 28, 2020
    Assignee: Oracle International Corporation
    Inventors: Rishabh Jain, David A. Brown, Michael Duller, Christopher Joseph Daniels, Erik M. Schlanger
  • Publication number: 20200234386
    Abstract: Techniques described herein are directed to using blockchains to record, manage, and transfer ownership rights to land titles. A method in accordance with these techniques may include: creating a property blockchain that is permissioned, the property blockchain including a chronologically ordered, back-linked list of one or more blocks, the one or more blocks including a genesis block, the genesis block including property attributes including one more of the following: a physical address of the property, a year the property was built, and an owner of the property; and transmitting the property blockchain to permissioned nodes on a network, where the permissioned nodes validate transactions associated with the property that are recorded on the property blockchain.
    Type: Application
    Filed: August 18, 2017
    Publication date: July 23, 2020
    Inventors: David H. Blackman, David Brown
  • Publication number: 20200227786
    Abstract: The present application relates to an electrochemical cell comprising a nitrile-based solvent based electrolyte wherein, the electrolyte salt comprises NaClO4 and, at any stage of charge of the electrochemical cell, the electrolyte salt has a high Molar concentration in the discharged state.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 16, 2020
    Inventors: Andras KOVACS, Tapani ALASAARELA, David LLOYD, David BROWN
  • Patent number: 10715207
    Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing correlations with combinational pseudo-random noise (PRN) codes generated for different bit positions. The GNSS receiver receives a signal including a PRN code modulated by CSK to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes, each representing a different shift in chips to the PRN code. The GNSS receiver performs a chip-by-chip linear combination of a group of receiver codes for each bit position of the CSK modulated symbol. The GNSS receiver correlates the received signal with each combinational PRN code to produce a binary value that is the CSK modulated symbol.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: July 14, 2020
    Assignee: NovAtel Inc.
    Inventors: David Brown, Patrick C. Fenton
  • Patent number: 10702108
    Abstract: A surface cleaning head includes dual rotating agitators (e.g., a leading roller and a brush roll) and a removable cover for covering a top of the agitators and allowing access to the agitators from a top of the surface cleaning head. The dual agitators may be used to facilitate capturing of debris in the air flow into a suction conduit on the underside of the surface cleaning head. The brush roll may be located in a brush roll chamber and at least partially in an opening to the suction conduit. The leading roller may be positioned adjacent to and in advance of the suction conduit opening such that the leading roller engages debris and moves the debris toward the brush roll and the opening. The leading roller may be removable from the housing and held in place by the removable cover. The cover may be coupled using isolated latching mechanisms.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 7, 2020
    Assignee: SharkNinja Operating LLC
    Inventors: Adam Udy, Andre David Brown, John Freese, Patrick Cleary, Daniel Meyer, Daniel John Innes, Jason Thorne, Peter Hutchinson, Gordon Howes, Wenxiu Gao, Daniel R. Der Marderosian, Thomas Ford, Owen R. Johnson
  • Patent number: 10698294
    Abstract: Resistance feedback control of drive signals for plural SMA actuator wires in an SMA actuation arrangement is performed. Target resistance values are set representing a desired position of a movable element with respect to the support structure. Measures of resistance of each SMA actuator wire are detected. Errors are derived from the target resistance values and the detected measures of resistance, the errors being adjusted by offsets. The powers of the drive signals supplied to SMA actuator wires are controlled. in accordance with the adjusted errors. The offsets have values selected to adjust the actual position of the movable element to match the desired positions represented by the target resistance values.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: June 30, 2020
    Assignee: Cambridge Mechatronics Limited
    Inventor: Andrew Benjamin David Brown
  • Patent number: 10699408
    Abstract: A tree examining system is provided which employs a thermographic image which electronically differentiates individual areas of a total area of a tree by areas according to temperature differential. Pixels in individual areas determined as abnormal are assigned a color which differentiates them from adjacent areas determined as normal. A displayable colorized image thereby produced provides a map viewable by a user to cut or trim the tree to remove the abnormal areas shown colorized therein.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: June 30, 2020
    Inventor: David Brown
  • Publication number: 20200200037
    Abstract: A gas turbine engine, and an aircraft including the gas turbine engine. The gas turbine engine comprising: an engine core comprising a turbine, a compressor, and a shaft system connecting the turbine to the compressor. The shaft system is axially located by a thrust bearing located forward of the turbine, and the engine is configured such that, in the event of a shaft break which divides the shaft system into a front portion located by the thrust bearing and a rear portion unlocated by the thrust bearing, the rear portion is free to move axially rearwardly under a gas load; and the engine further comprises an axial movement sensor configured to register a shaft break when it detects the axial movement of the rear portion of the shaft system.
    Type: Application
    Filed: November 22, 2019
    Publication date: June 25, 2020
    Applicants: ROLLS-ROYCE plc, ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: David BROWN, Jorge CALDERON
  • Patent number: 10648459
    Abstract: An SMA actuator arrangement is assembled using a strut element shaped to comprise a sacrificial strut body and crimp tabs held apart by the sacrificial strut body. A SMA wire is laid across the crimp tabs which are folded and pressed to form crimps holding the SMA wire. The crimps are then attached to static and moving parts, after which the sacrificial strut body is removed. The method allows the crimping to be performed without hindrance from the static and moving parts, the sacrificial strut body holding the relative locations of the crimps prior to attachment.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: May 12, 2020
    Assignee: CAMBRIDGE MECHATRONICS LIMITED
    Inventors: Stephen Matthew Bunting, James Howarth, Andrew Benjamin David Brown
  • Patent number: 10638667
    Abstract: Systems and Methods for Augmented-Human Field Inspection Tools for Automated Phenotyping Systems and Agronomy Tools. In one embodiment, a method for plant phenotyping, includes: acquiring a first set of observations about plants in a field by a trainer. The trainer carries a sensor configured to collect observations about the plant, and the first set of observations includes ground truth data. The method also includes processing the first set of observations about the plants by a trait extraction model to generate instructions for a trainee; and acquiring a second set of observations about the plants by a trainee while the trainee follows the instructions.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: May 5, 2020
    Assignee: X Development LLC
    Inventors: William Regan, Matthew Bitterman, David Brown, Elliott Grant, Zhiqiang Yuan
  • Publication number: 20200136672
    Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing a binary search. The GNSS receiver receives a signal including a pseudorandom noise (PRN) code modulated by code shift keying (CSK) to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes each representing a different shift in chips to the PRN code. The GNSS receiver performs a linear combination of portions of the receiver codes. In an embodiment, the GNSS receiver compares correlation power level value for respective portions of the receiver codes to demodulate the CSK data. In a further embodiment, the GNSS receiver compares the correlation power level values for portions of receiver codes with power detection threshold values to demodulate the CSK data. In a further embodiment, the GNSS receiver utilizes signs of the correlation power level values to demodulate the CSK data.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventors: Patrick C. Fenton, David Brown
  • Publication number: 20200136673
    Abstract: A Global Navigation Satellite System (GNSS) receiver demodulates code shift keying (CSK) data utilizing correlations with combinational pseudo-random noise (PRN) codes generated for different bit positions. The GNSS receiver receives a signal including a PRN code modulated by CSK to represent a symbol (i.e., CSK modulated symbol). The GNSS receiver maintains a plurality of receiver codes, each representing a different shift in chips to the PRN code. The GNSS receiver performs a chip-by-chip linear combination of a group of receiver codes for each bit position of the CSK modulated symbol. The GNSS receiver correlates the received signal with each combinational PRN code to produce a binary value that is the CSK modulated symbol.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventors: David Brown, Patrick C. Fenton
  • Publication number: 20200131918
    Abstract: The invention regards a gas turbine engine control system and a method for limiting turbine overspeed in case of a shaft failure. The control system includes: an overspeed protection system that activates an activation member in case a shaft failure is detected; a fuel limiting mechanism coupled with the activation member, wherein the fuel limiting mechanism is configured to limit the fuel supply to the gas turbine engine combustor if the activation member is activated; a variable stator vane mechanism which is configured to adjust variable stator vanes of a compressor of the gas turbine engine in their rotational position, the variable stator vanes having a closed position which blocks air flow through the compressor.
    Type: Application
    Filed: September 25, 2019
    Publication date: April 30, 2020
    Inventors: Jorge CALDERON, David BROWN
  • Publication number: 20200127157
    Abstract: Methods for fabricating semiconductor devices incorporating an activated p-(Al,In)GaN layer include exposing a p-(Al,In)GaN layer to a gaseous composition of H2 and/or NH3 under conditions that would otherwise passivate the p-(Al,In)GaN layer. The methods do not include subjecting the p-(Al,In)GaN layer to a separate activation step in a low hydrogen or hydrogen-free environment. The methods can be used to fabricate buried activated n/p-(Al,In)GaN tunnel junctions, which can be incorporated into electronic devices.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 23, 2020
    Applicant: Gallium Enterprises Pty Ltd
    Inventors: Ian MANN, Satyanarayan BARIK, Joshua David BROWN, Danyu LIU
  • Patent number: 10627073
    Abstract: Method and apparatus are disclosed for vehicle headlamp de-condensation. An example exterior lamp of a vehicle includes a housing, a cover coupled to the housing to define a cavity, and a lamp assembly within the cavity. The lamp assembly includes an LED, a heat sink coupled to the LED that is configured to dissipate heat and define a chamber, desiccant located within the chamber to collect moisture from the cavity, and a vent fluidly coupled to the chamber to remove the moisture from the cavity.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: April 21, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Stephen Kenneth Helwig, David A. Brown, Aaron Bradley Johnson, Paul Kenneth Dellock, Stuart C. Salter
  • Publication number: 20200117274
    Abstract: Broadly speaking, embodiments of the present techniques provide apparatus and methods for providing haptic feedback, and in particular to user-operated buttons for electrical and electronic products that provide haptic feedback to the user when operated.
    Type: Application
    Filed: June 5, 2018
    Publication date: April 16, 2020
    Inventors: Andrew Benjamin David Brown, James Howarth, Thomas James Powell, Eugene Yu Jen Ho, Jonathan Morgan