Patents by Inventor Ronan Van der Zee

Ronan Van der Zee 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).

  • Crystal oscillator circuit and method of operation
    Patent number: 10931232
    Abstract: A crystal oscillator circuit (100, 200) is described that includes a crystal resonator (220); and a voltage source (204) configured to apply a voltage step across the crystal oscillator (220) where a polarity of the voltage source (204) applied to the crystal resonator (220) is switched in response to a sign of a current passing through the crystal resonator (220) and in response thereto a self-timed energy injection waveform is provided to the crystal resonator (220).
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: February 23, 2021
    Assignee: NXP B.V.
    Inventors: Ronan van der Zee, Joeri Lechevallier
  • CRYSTAL OSCILLATOR CIRCUIT AND METHOD OF OPERATION
    Publication number: 20200244220
    Abstract: A crystal oscillator circuit (100, 200) is described that includes a crystal resonator (220); and a voltage source (204) configured to apply a voltage step across the crystal oscillator (220) where a polarity of the voltage source (204) applied to the crystal resonator (220) is switched in response to a sign of a current passing through the crystal resonator (220) and in response thereto a self-timed energy injection waveform is provided to the crystal resonator (220).
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Inventors: Ronan Van der Zee, Joeri Lechevallier