Patents by Inventor Luke Whitaker

Luke Whitaker 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).

  • Memristance feedback tuning
    Patent number: 10157668
    Abstract: An example device in accordance with an aspect of the present disclosure includes at least one current comparator, a plurality of threshold currents, and a controller. The current comparator is to compare a memristor current to a plurality of threshold currents. The controller is to set a desired memristance state of a memristor according to a memristance feedback tuning loop based on a plurality of threshold levels. The controller is to apply positive and negative voltages to the memristor during the feedback tuning loop to achieve the desired memristance state of the memristor.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: December 18, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Luke Whitaker, Emmanuelle J. Merced Grafals, Martin Foltin
  • MEMRISTANCE FEEDBACK TUNING
    Publication number: 20180108410
    Abstract: An example device in accordance with an aspect of the present disclosure includes at least one current comparator, a plurality of threshold currents, and a controller. The current comparator is to compare a memristor current to a plurality of threshold currents. The controller is to set a desired memristance state of a memristor according to a memristance feedback tuning loop based on a plurality of threshold levels. The controller is to apply positive and negative voltages to the memristor during the feedback tuning loop to achieve the desired memristance state of the memristor.
    Type: Application
    Filed: May 29, 2015
    Publication date: April 19, 2018
    Inventors: Luke Whitaker, Emmanuelle J. Merced Grafals, Martin Foltin
  • Clamp circuit
    Patent number: 9812197
    Abstract: One example provides a device including a first transistor having a source-drain path electrically coupled between a first node and a second node. The device includes an operational amplifier having an output electrically coupled to a gate of the first transistor. The operational amplifier controls the first transistor to maintain a predetermined voltage on the first node. A first current source adds a current at the first node and a second current source subtracts the current at the second node.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: November 7, 2017
    Assignee: Hewlett Packard Enterprise Development LP
    Inventor: Luke Whitaker
  • CLAMP CIRCUIT
    Publication number: 20170110187
    Abstract: One example provides a device including a first transistor having a source-drain path electrically coupled between a first node and a second node. The device includes an operational amplifier having an output electrically coupled to a gate of the first transistor. The operational amplifier controls the first transistor to maintain a predetermined voltage on the first node. A first current source adds a current at the first node and a second current source subtracts the current at the second node.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 20, 2017
    Inventor: Luke Whitaker