Patents by Inventor David A. Walker

David A. Walker 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: 11090498
    Abstract: A magnetic alignment system that can form part of a cochlear implant system. The magnetic alignment system prevents substantial movement of a magnet of an implanted component during an MRI procedure or allows for easy removal of the magnet to facilitate the MRI procedure.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 17, 2021
    Assignee: Cochlear Limited
    Inventors: Peter Gibson, Charles Roger Aaron Leigh, Frank Risi, David Walker
  • Patent number: 11043747
    Abstract: An antenna comprising first and second antenna elements, a center conductor, and a dielectric. The first antenna element is configured to be electrically connected to an outer conductor of a coaxial cable. The center conductor is electrically connected to the second antenna element and configured to be electrically connected to an inner conductor of the coaxial cable. The dielectric is disposed around the center conductor so as to separate the center conductor from the first antenna element. The first antenna element is shaped to gradually surround the dielectric and the center conductor over a length of the first antenna element so as to form a balun, integrated into the first antenna element, that is configured to gradually transform an unbalanced signal in the coaxial cable to a balanced signal that is characteristic of a two-conductor transmission line.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: June 22, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Steven Edward Mancewicz, David Walker Brock, Robert Joseph Motyl
  • Publication number: 20210152672
    Abstract: This disclosure describes techniques for a network interface controller (NIC) to communicate over a network according to a specified transmission communication protocol. The NIC receives, from a host processor, an indication of a data unit and an indication of a header template. The NIC generates, independent of the specified transmission communication protocol, metadata for transmitting a segment of the data unit over a network. The NIC generates, at last partly using the metadata, header fields that comply with the specified transmission communication protocol. The NIC processes the header template and the header fields to generate a packet header, and the NIC transmits, over the network, a packet including the packet header and the segment of the data unit.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 20, 2021
    Inventors: Reese Faucette, David Walker
  • Patent number: 11011848
    Abstract: A dual-polarized tapered slot antenna (TSA) comprising: a dielectric bracket; a first pair of conductive blades mounted to the dielectric bracket so as to define a first tapered slot between edges of the conductive blades of the first pair thereby forming a horizontally-polarized TSA; a second pair of conductive blades mounted in the dielectric bracket orthogonal to the first pair so as to define a second tapered slot between edges of the conductive blades of the second pair thereby forming a vertically-polarized TSA; and wherein at least part of each of the slot-defining edges of the conductive blades has a thickness that is non-tapered and stepwise-reduced from the thickness of a remainder of the corresponding blade.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: May 18, 2021
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Steven Edward Mancewicz, David Walker Brock, Robert Joseph Motyl
  • Publication number: 20210114288
    Abstract: Methods and apparatus comprising a dewetting phase and a polymerization liquid that are immiscible, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ an optically transparent cooling apparatus to mitigate heat generated during the fabrication process, and the use of a mobile phase to provide a shearing interface to reduce interfacial adhesive forces.
    Type: Application
    Filed: October 30, 2020
    Publication date: April 22, 2021
    Inventors: Chad A. Mirkin, David A. Walker, James L. Hedrick, III
  • Patent number: 10972580
    Abstract: A system intercepts, at an application programming interface (API) gateway, a request for access to a computing resource and obfuscates metadata associated with the request. The metadata is obfuscated by at least encrypting the metadata to generate encrypted metadata. The API gateway further generates a second request to include the encrypted metadata. The second request is then used to access the computing resource in response to the first request such that when the computing resource is accessed, the metadata associated with the computing resource is encrypted.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 6, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Bertram U. Dorn, David Walker
  • Publication number: 20210046318
    Abstract: A magnetic alignment system that can form part of a cochlear implant system. The magnetic alignment system prevents substantial movement of a magnet of an implanted component during an MRI procedure or allows for easy removal of the magnet to facilitate the MRI procedure.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 18, 2021
    Inventors: Peter Gibson, Charles Roger Aaron Leigh, Frank Risi, David Walker
  • Patent number: 10922152
    Abstract: A visual scripting system can provide support for handling event-specific messages received through an event messaging system. The messaging system can provide event messages over one or more event buses that have a determined behavior context. An event node of a visual scripting system can enable a developer to specify event handlers to detect specific types of event notifications sent on a specified event bus, as well as specific actions to be taken in response to those event notifications, such as to send additional event messages, all of which comply with the behavior context. Once the event node is configured and properties and actions defined, the corresponding script can be generated by the visual scripting system, to be complied and executed as part of a user application.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 16, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Jegan Chen, Charles Michael Hutchins Curran, Ross Alan Cameron Gardner, Derric L. McGarrah, Bradley Rebh, Carlin Michael Rogers, II, Syed Suhaib Sarmad Barbero, Luis Rene Sempe Sosa, David Walker
  • Publication number: 20210044590
    Abstract: Approaches provide for mandatory access controls and account identification masking controls in an electronic environment. For example, a customer can configure a client device to access an API gateway which acts as a proxy for a resource in a resource provider environment. Requests for resources or services can be redirected to the API gateway. A registered function may be triggered when the request is received and may filter the request. After filtering, the request can be forwarded on to the actual API endpoint to access the requested resource. From the client's perspective, the resource is being accessed directly, and from the resource's perspective, it is being accessed by the proxy. This layer of indirection enables data to be protected preemptively, rather than waiting for an undesirable condition to exist and then reactively attending to the issue.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 11, 2021
    Inventors: David Walker, Bertram Dorn
  • Patent number: 10910731
    Abstract: A flat panel antenna is provided. The flat panel antenna may include a plurality of flat panel arrays (FPAs) that are arranged adjacent one another. Ones of the plurality of FPAs are configured to radiate in a plurality of different respective frequency bands and/or at different respective polarizations. The flat panel antenna includes an enclosure that defines an internal cavity that includes the plurality of FPAs.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: February 2, 2021
    Assignee: CommScope Technologies LLC
    Inventors: Claudio Biancotto, David Walker, Ian Renilson
  • Publication number: 20210027336
    Abstract: A method comprises providing an interface permitting a first user to control activation of a mobile information channel through which the first user can share access to content with a plurality of additional users, activating the mobile information channel responsive to input received from the first user via the interface, inserting content provided by the first user into the mobile information channel, receiving additional content relating to the mobile information channel from one or more of said additional users via one or more respective mobile devices associated with at least one wireless network, inserting at least a portion of the additional content into the mobile information channel, and integrating into the mobile information channel information associated with at least one wireless networking functionality of said at least one wireless network.
    Type: Application
    Filed: October 13, 2020
    Publication date: January 28, 2021
    Inventors: David Walker Harper, Jason James Sabella, William Henry Munch
  • Publication number: 20210008429
    Abstract: Distance measuring devices and methods are included which may be used to measure and simultaneously display an accurate range of multiple targets such as the flags of a golf practice driving range.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Inventors: Dale TIMM, Mike CASSIANO, Troy L. PARISH, David WALKER
  • Publication number: 20200395671
    Abstract: An antenna comprising first and second antenna elements, a center conductor, and a dielectric. The first antenna element is configured to be electrically connected to an outer conductor of a coaxial cable. The center conductor is electrically connected to the second antenna element and configured to be electrically connected to an inner conductor of the coaxial cable. The dielectric is disposed around the center conductor so as to separate the center conductor from the first antenna element. The first antenna element is shaped to gradually surround the dielectric and the center conductor over a length of the first antenna element so as to form a balun, integrated into the first antenna element, that is configured to gradually transform an unbalanced signal in the coaxial cable to a balanced signal that is characteristic of a two-conductor transmission line.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 17, 2020
    Inventors: Steven Edward Mancewicz, David Walker Brock, Robert Joseph Motyl
  • Publication number: 20200395670
    Abstract: A dual-polarized tapered slot antenna (TSA) comprising: a dielectric bracket; a first pair of conductive blades mounted to the dielectric bracket so as to define a first tapered slot between edges of the conductive blades of the first pair thereby forming a horizontally-polarized TSA; a second pair of conductive blades mounted in the dielectric bracket orthogonal to the first pair so as to define a second tapered slot between edges of the conductive blades of the second pair thereby forming a vertically-polarized TSA; and wherein at least part of each of the slot-defining edges of the conductive blades has a thickness that is non-tapered and stepwise-reduced from the thickness of a remainder of the corresponding blade.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 17, 2020
    Inventors: Steven Edward Mancewicz, David Walker Brock, Robert Joseph Motyl
  • Patent number: 10839427
    Abstract: A method comprises providing an interface permitting a first user to control activation of a mobile information channel through which the first user can share access to content with a plurality of additional users, activating the mobile information channel responsive to input received from the first user via the interface, inserting content provided by the first user into the mobile information channel, receiving additional content relating to the mobile information channel from one or more of said additional users via one or more respective mobile devices associated with at least one wireless network, inserting at least a portion of the additional content into the mobile information channel, and integrating into the mobile information channel information associated with at least one wireless networking functionality of said at least one wireless network.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: November 17, 2020
    Assignee: Engagelogic Corporation
    Inventors: David Walker Harper, Jason James Sabella, William Henry Munch
  • Patent number: 10835796
    Abstract: An athletic training net for receiving projectiles. The training net has a storage sleeve affixed to an upper end, wherein the storage sleeve includes a plurality of upper grommets at an upper end and a plurality of lower grommets at a lower end. The training net further includes a plurality of hook and strap fasteners, with each comprising of a strap secured to a structural member of a garage door and a hook for catching the plurality of upper and lower grommets. The training net has a training configuration and a storage configuration. In the training configuration, the hooks are received by the plurality of upper grommets and the net is vertically suspended form the garage door. In the storage configuration, the plurality of upper grommets remains suspended from the hooks, the net is enfolded in the storage sleeve, and the plurality of lower grommets is secured by the hooks.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: November 17, 2020
    Assignee: Walker Sports Innovations, LLC
    Inventor: John David Walker
  • Patent number: 10814201
    Abstract: Distance measuring devices and methods are included which may be used to measure and simultaneously display an accurate range of multiple targets such as the flags of a golf practice driving range.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: October 27, 2020
    Assignee: FlagD, LLC
    Inventors: Dale Timm, Mike Cassiano, Troy L. Parish, David Walker
  • Patent number: 10810055
    Abstract: Calls, such as API calls to a resource provider environment, can be modeled and evaluated using a shadow environment before executing the call in an actual target environment. Such an approach ensures that any changes made as a result of executing the call will not cause the actual environment to be out of compliance with any relevant rules or regulations. Changes may typically be reflected in a configuration management database. A shadow copy of this database can be generated, and the call can first be modeled in this shadow copy. Shadow log entries including results of the processing can be generated and evaluated. If the changes would be compliant then the call can be transmitted to the actual API endpoint for the target environment, where the API call can be executed.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: October 20, 2020
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventor: David Walker
  • Patent number: D917423
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: April 27, 2021
    Inventor: Alastair David Walker
  • Patent number: D924203
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: July 6, 2021
    Inventor: Alastair David Walker