Patents by Inventor David J. Hernandez

David J. Hernandez 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).

  • Publication number: 20240098003
    Abstract: Systems and methods may be used to assess network communications by generating one or more current communication parameters based on communications at an intelligent electronic device (IED) within an electric power delivery system. Network communications may be assessed by determining, at the IED, whether the communications fall within one or more thresholds for the current communication parameters.
    Type: Application
    Filed: March 14, 2023
    Publication date: March 21, 2024
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Edson L. Hernandez Cortinas, Preston Stephens, Bharat Nalla, Mauricio G. Silveira, Gabriel DeRuwe, Dennis Holmbo, David J. Dolezilek
  • Patent number: 11918815
    Abstract: An example device for detecting one or more parameters of a cardiac signal is disclosed herein. The device includes one or more electrodes and sensing circuitry configured to sense a cardiac signal via the one or more electrodes. The device further includes processing circuitry configured to determine a representative signal based on the cardiac signal, the representative signal having a single polarity, and determine an end of a T-wave of the cardiac signal based on an area under the representative signal.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: March 5, 2024
    Assignees: Medtronic, Inc., UMC Utrecht Holding B.V.
    Inventors: Alfonso Aranda Hernandez, Berthold Stegemann, Marc A. Vos, David J. Sprenkeler
  • Patent number: 11230860
    Abstract: A dual-contact electro-permanent magnet (EPM) assembly of an information handling system may comprise a plurality of high-coercivity magnets situated on opposite ends of a low-coercivity magnet, a first EPM magnetic contact disposed between a first of the plurality of high-coercivity magnets and the low-coercivity magnet, and a second EPM magnetic contact disposed between a second of the plurality of high-coercivity magnets and the low-coercivity magnet. The low-coercivity magnet polarity may correlate to a direction of current pulse applied to an electrically conductive wire coiled around the low-coercivity magnet, and dependent upon the low-coercivity magnet polarity, the first EPM magnetic contact is capable of operating in an attractive magnetic state to attract a ferromagnetic contact of a peripheral device while the second EPM magnetic contact is magnetically neutral with respect to the ferromagnetic contact.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: January 25, 2022
    Assignee: Dell Products, LP
    Inventors: Jason S. Morrison, Anthony J. Sanchez, David J. Hernandez, Laurent A. Regimbal
  • Publication number: 20200392759
    Abstract: A dual-contact electro-permanent magnet (EPM) assembly of an information handling system may comprise a plurality of high-coercivity magnets situated on opposite ends of a low-coercivity magnet, a first EPM magnetic contact disposed between a first of the plurality of high-coercivity magnets and the low-coercivity magnet, and a second EPM magnetic contact disposed between a second of the plurality of high-coercivity magnets and the low-coercivity magnet. The low-coercivity magnet polarity may correlate to a direction of current pulse applied to an electrically conductive wire coiled around the low-coercivity magnet, and dependent upon the low-coercivity magnet polarity, the first EPM magnetic contact is capable of operating in an attractive magnetic state to attract a ferromagnetic contact of a peripheral device while the second EPM magnetic contact is magnetically neutral with respect to the ferromagnetic contact.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 17, 2020
    Applicant: Dell Products, LP
    Inventors: Jason S. Morrison, Anthony J. Sanchez, David J. Hernandez, Laurent A. Regimbal
  • Patent number: 10860068
    Abstract: A portable information handling system moves a display pivot axis between a main housing front and rear side with a display cable communicating visual information between the display and main housing. A display cable manager regulates a length of the display cable by wrapping the display cable about a spool biased to retract the display cable.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: December 8, 2020
    Assignee: Dell Products L.P.
    Inventors: Brandon J. Brocklesby, Priyank Gajiwala, David J. Hernandez, Robert D. Hrehor, Jason S. Morrison, Laurent A. Regimbal, Anthony J. Sanchez
  • Publication number: 20200249726
    Abstract: A portable information handling system moves a display pivot axis between a main housing front and rear side with a display cable communicating visual information between the display and main housing. A display cable manager regulates a length of the display cable by wrapping the display cable about a spool biased to retract the display cable.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 6, 2020
    Applicant: Dell Products L.P.
    Inventors: Brandon J. Brocklesby, Priyank Gajiwala, David J. Hernandez, Robert D. Hrehor, Jason S. Morrison, Laurent A. Regimbal, Anthony J. Sanchez
  • Patent number: 10635132
    Abstract: A portable information handling system transformation between clamshell and all-in-one configurations is managed by a position manager that senses main and display housing positions to restrict configuration actions if predetermined conditions are detected. For example, transformation to an all-in-one configuration may be restricted if display housing location and rotational orientation are not set before extension of a stand that raises the main housing rear surface.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: April 28, 2020
    Assignee: Dell Products L.P.
    Inventors: Brandon J. Brocklesby, Priyank Gajiwala, David J. Hernandez, Robert D. Hrehor, Jason S. Morrison, Laurent A. Regimbal, Anthony J. Sanchez
  • Patent number: 10606319
    Abstract: A portable information handling system transforms from a clamshell configuration to an all-in-one configuration by removing a keyboard from a main housing, sliding the display housing in a guide formed under the keyboard and raising a rear side of the main housing to elevate the display. A brake interfaces with the display housing through the guide to lock the display at variable heights. A brake release selectively releases the brake to allow display height adjustment by adjusting the relative position of the display housing at the main housing.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: March 31, 2020
    Assignee: Dell Products L.P.
    Inventors: Brandon J. Brocklesby, Priyank Gajiwala, David J. Hernandez, Robert D. Hrehor, Jason S. Morrison, Laurent A. Regimbal, Anthony J. Sanchez
  • Patent number: 10585451
    Abstract: A portable information handling system transforms between clamshell and all-in-one positions by sliding a display housing pivot axis towards a front side of a main housing and raising the rear side of the main housing with a stand that extends out from a bottom surface of the main housing. A keyboard detaches from the main housing upper surface to expose guides that manage the display housing sliding motion towards the main housing front side. The all-in-one position raises the main housing towards a near-vertical orientation to raise the display above a support surface for end user viewing while an end user interacts with the keyboard separated from the housing.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: March 10, 2020
    Assignee: Dell Products L.P.
    Inventors: Brandon J. Brocklesby, Priyank Gajiwala, David J. Hernandez, Robert D. Hrehor, Jason S. Morrison, Laurent A. Regimbal, Anthony J. Sanchez
  • Patent number: 10558244
    Abstract: A portable information handling system stand couples to a main housing lower surface with a dual axle hidden stand hinge that extends the stand parallel to the main housing lower surface with an initial synchronized opposing rotation of the axles by a predetermined amount, such as 45 degrees, and then rotates out a stand supporting end with rotation of one axle while the other axle remains stationary. Initial parallel extension of the stand reduces the amount of space in the main housing lower surface consumed by rotational movement of the stand to an extended position.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 11, 2020
    Assignee: Dell Products L.P.
    Inventors: Brandon J. Brocklesby, Priyank Gajiwala, David J. Hernandez, Robert D. Hrehor, Jason S. Morrison, Laurent A. Regimbal, Anthony J. Sanchez
  • Patent number: 10558245
    Abstract: An information handling system narrow width dual axes hinge rotationally couples portable information handling system housing portions to each other with minimal spacing between the housing portions. A gear assembly synchronizes motion about the dual axles at one end of the dual axles, the gear assembly having brackets to couple to each housing portion. Torque brackets couple to the opposite end of the dual axles, each torque bracket couple to a housing portion and resisting rotation of the housing portions by generating friction at the axle.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: February 11, 2020
    Assignee: Dell Products L.P.
    Inventors: John T. Morrison, Anthony J. Sanchez, David J. Hernandez
  • Publication number: 20190243426
    Abstract: An information handling system narrow width dual axes hinge rotationally couples portable information handling system housing portions to each other with minimal spacing between the housing portions. A gear assembly synchronizes motion about the dual axles at one end of the dual axles, the gear assembly having brackets to couple to each housing portion. Torque brackets couple to the opposite end of the dual axles, each torque bracket couple to a housing portion and resisting rotation of the housing portions by generating friction at the axle.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 8, 2019
    Applicant: Dell Products L.P.
    Inventors: John T. Morrison, Anthony J. Sanchez, David J. Hernandez
  • Patent number: 9595750
    Abstract: A chassis component of an information handling system may include a chassis main lid component constructed of carbon fiber composite material that supports a lid chassis antenna housing that includes an internal antenna cavity defined therein to create an antenna window for the system. The carbon fiber composite material may be attached to the chassis antenna housing by an interlocking rib that provides sufficient joint strength to allow for a substantially larger and extended chassis antenna housing with larger antenna window that may be spaced further away from the carbon fiber composite material of the chassis main lid component than would otherwise be possible for the same form factor size so as to minimize or substantially eliminate shielding or blocking of wireless signals by the carbon fiber composite material lid component that would result in reduced system wireless performance.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 14, 2017
    Assignee: Dell Products L.P.
    Inventors: Brian H. Leonard, David J. Hernandez, Chuan Beng Sim
  • Publication number: 20160204498
    Abstract: A chassis component of an information handling system may include a chassis main lid component constructed of carbon fiber composite material that supports a lid chassis antenna housing that includes an internal antenna cavity defined therein to create an antenna window for the system. The carbon fiber composite material may be attached to the chassis antenna housing by an interlocking rib that provides sufficient joint strength to allow for a substantially larger and extended chassis antenna housing with larger antenna window that may be spaced further away from the carbon fiber composite material of the chassis main lid component than would otherwise be possible for the same form factor size so as to minimize or substantially eliminate shielding or blocking of wireless signals by the carbon fiber composite material lid component that would result in reduced system wireless performance.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 14, 2016
    Inventors: Brian H. Leonard, David J. Hernandez, Chuan Beng Sim
  • Patent number: 9318791
    Abstract: A chassis component of an information handling system may include a chassis main lid component constructed of carbon fiber composite material that supports a lid chassis antenna housing that includes an internal antenna cavity defined therein to create an antenna window for the system. The carbon fiber composite material may be attached to the chassis antenna housing by an interlocking rib that provides sufficient joint strength to allow for a substantially larger and extended chassis antenna housing with larger antenna window that may be spaced further away from the carbon fiber composite material of the chassis main lid component than would otherwise be possible for the same form factor size so as to minimize or substantially eliminate shielding or blocking of wireless signals by the carbon fiber composite material lid component that would result in reduced system wireless performance.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: April 19, 2016
    Assignee: Dell Products L.P.
    Inventors: Brian H. Leonard, David J. Hernandez, Chuan Beng Sim
  • Publication number: 20150222007
    Abstract: A chassis component of an information handling system may include a chassis main lid component constructed of carbon fiber composite material that supports a lid chassis antenna housing that includes an internal antenna cavity defined therein to create an antenna window for the system. The carbon fiber composite material may be attached to the chassis antenna housing by an interlocking rib that provides sufficient joint strength to allow for a substantially larger and extended chassis antenna housing with larger antenna window that may be spaced further away from the carbon fiber composite material of the chassis main lid component than would otherwise be possible for the same form factor size so as to minimize or substantially eliminate shielding or blocking of wireless signals by the carbon fiber composite material lid component that would result in reduced system wireless performance.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 6, 2015
    Inventors: Brian H. Leonard, David J. Hernandez, Chuan Beng Sim
  • Publication number: 20090119963
    Abstract: A product badge coupled to a product, such as an information handling system, has a manually-selectable orientation to allow the orientation of the product badge to change for adapting to changes in the orientation of the product. A product badge support rotationally couples the product badge to the product for user selection of a desired orientation of product information, such as a manufacturer logo or a product identification number. Manual activation to change product badge orientation includes pushing the product badge into the product badge support to engage opposing cams, pushing the product badge edge to rotate the product badge to an opposing side having product information of another orientation, and pushing the product badge to activate a retention mechanism for release and retention of a selected of plural clips.
    Type: Application
    Filed: January 13, 2009
    Publication date: May 14, 2009
    Inventors: David J. Hernandez, Pedro M. Alfonso, Bradley Jackson, Kenneth Musgrave
  • Patent number: 7475506
    Abstract: A product badge coupled to a product, such as an information handling system, has a manually-selectable orientation to allow the orientation of the product badge to change for adapting to changes in the orientation of the product. A product badge support rotationally couples the product badge to the product for user selection of a desired orientation of product information, such as a manufacturer logo or a product identification number. Manual activation to change product badge orientation includes pushing the product badge into the product badge support to engage opposing cams, pushing the product badge edge to rotate the product badge to an opposing side having product information of another orientation, and pushing the product badge to activate a retention mechanism for release and retention of a selected of plural clips.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: January 13, 2009
    Assignee: Dell Products L.P.
    Inventors: David J. Hernandez, Pedro M. Alfonso, Bradley Jackson, Kenneth Musgrave
  • Patent number: 7352569
    Abstract: According to one embodiment, a modular component securing apparatus includes a component chassis having a plurality of opposed walls, each wall including a support for receiving a modular component in one of a first orientation and a second orientation transverse to the first orientation. A component securing member is operable to be coupled to the component chassis adjacent selected ones of the opposed walls wherein the component securing member is operable to secure the modular component in the first orientation in response to being coupled to a first one of the walls, and is operable to secure the modular component in the second orientation in response to being coupled to a second one of the walls transverse to the first wall.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: April 1, 2008
    Assignee: Dell Products L.P.
    Inventors: Christopher Muenzer, David J. Hernandez
  • Patent number: 7190574
    Abstract: A modular component securing apparatus includes a modular component chassis including a first pair of spaced apart parallel walls and a second pair of spaced apart parallel walls positioned substantially transverse to the first pair of parallel walls. A first support structure is positioned on the first pair of parallel walls and a second support structure is positioned on the second pair of parallel walls. A securing member is operable to be coupled to the modular component chassis adjacent one of either the first support structure or the second support structure. A modular component may be secured in the modular component chassis in a first orientation by coupling the modular component to the first support structure and coupling the securing member adjacent the first support structure.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: March 13, 2007
    Assignee: Dell Products L.P.
    Inventors: Christopher Muenzer, David J. Hernandez