Patents by Inventor David Julian Yeates

David Julian Yeates 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).

  • Switch circuit of DC/DC converter configured to conduct various modes for charging/discharging
    Patent number: 8159091
    Abstract: A DC/DC converter includes an input terminal for receiving an input voltage; an output terminal for providing an output voltage; a ground terminal for providing a reference voltage; a plurality of charge pump capacitors including at least a first charge pump capacitor, a second charge pump capacitor, and a third charge pump capacitor; and a switch circuit. The switch circuit includes a plurality of switches configured to allow the plurality of charge pump capacitors connected in a hybrid parallel-series arrangement between the input terminal and the ground terminal or between the input terminal and the output terminal by selectively conducting a specified portion of the switches.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: April 17, 2012
    Assignee: Chimei Innolux Corporation
    Inventor: David Julian Yeates
  • SENSING METHOD AND DRIVING CIRCUIT OF CAPACITIVE TOUCH SCREEN
    Publication number: 20110068810
    Abstract: In a sensing method of a capacitive touch screen, which includes a plurality of sensing capacitors, at least one of the plurality of sensing capacitors is selected into a reference capacitor unit. The capacitance differences between the reference capacitor unit and the sensing capacitors are calculated. A touched position on the capacitive touch screen is determined according to the capacitance differences.
    Type: Application
    Filed: March 16, 2010
    Publication date: March 24, 2011
    Applicant: TPO Displays Corp.
    Inventors: David Julian Yeates, Frans Verweg
  • SWITCH CIRCUIT OF DC/DC CONVERTER CONFIGURED TO CONDUCT VARIOUS MODES FOR CHARGING/DISCHARGING
    Publication number: 20100253154
    Abstract: A DC/DC converter includes an input terminal for receiving an input voltage; an output terminal for providing an output voltage; a ground terminal for providing a reference voltage; a plurality of charge pump capacitors including at least a first charge pump capacitor, a second charge pump capacitor, and a third charge pump capacitor; and a switch circuit. The switch circuit includes a plurality of switches configured to allow the plurality of charge pump capacitors connected in a hybrid parallel-series arrangement between the input terminal and the ground terminal or between the input terminal and the output terminal by selectively conducting a specified portion of the switches.
    Type: Application
    Filed: January 22, 2010
    Publication date: October 7, 2010
    Applicant: TPO DISPLAYS CORP.
    Inventor: David Julian Yeates