Patents by Inventor Derek HUMMERSTONE

Derek HUMMERSTONE 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).

  • Analog to digital converter including a pre-charge circuit
    Patent number: 8994564
    Abstract: An analog to digital converter comprising at least one sampling capacitor connected to a sample node, and a pre-charge circuit arranged to cause the voltage on the sample node to substantially match the input voltage prior to the analog to digital converter entering an acquire mode in which the sample node is connected to the input node by a sample switch.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: March 31, 2015
    Assignee: Analog Devices Technology
    Inventors: Christopher Peter Hurrell, Derek Hummerstone, Meabh Shine
  • ANALOG TO DIGITAL CONVERTER INCLUDING A PRE-CHARGE CIRCUIT
    Publication number: 20140070976
    Abstract: An analog to digital converter comprising at least one sampling capacitor connected to a sample node, and a pre-charge circuit arranged to cause the voltage on the sample node to substantially match the input voltage prior to the analog to digital converter entering an acquire mode in which the sample node is connected to the input node by a sample switch.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 13, 2014
    Applicant: ANALOG DEVICES TECHNOLOGY
    Inventors: Christopher Peter HURRELL, Derek HUMMERSTONE, Meabh SHINE