Patents by Inventor Frode TELSTØ

Frode TELSTØ 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).

  • Oscillator circuit with two current supplies
    Patent number: 11336230
    Abstract: An oscillator circuit comprises a crystal oscillator and an inverter. The input of the inverter is connected to the first terminal of the crystal oscillator and the output of the inverter is connected to the second terminal of the crystal oscillator, oscillator circuit is arranged to operate the inverter in its linear operating region. An amplitude regulator has an input connected to the input of the inverter, arranged to provide a first supply current IAREG to the inverter, where the magnitude of the first supply current is inversely dependent on a magnitude of a voltage at the inverter input. A digital-to-analogue converter is arranged to provide a second supply current IDAC to the inverter having a magnitude determined by a digital signal applied to a digital input of the digital-to-analogue converter.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: May 17, 2022
    Assignee: Nordic Semiconductor ASA
    Inventor: Frode Telstø
  • OSCILLATOR CIRCUIT WITH TWO CURRENT SUPPLIES
    Publication number: 20210273610
    Abstract: An oscillator circuit comprises a crystal oscillator and an inverter. The input of the inverter is connected to the first terminal of the crystal oscillator and the output of the inverter is connected to the second terminal of the crystal oscillator, oscillator circuit is arranged to operate the inverter in its linear operating region. An amplitude regulator has an input connected to the input of the inverter, arranged to provide a first supply current IAREG to the inverter, where the magnitude of the first supply current is inversely dependent on a magnitude of a voltage at the inverter input. A digital-to-analogue converter is arranged to provide a second supply current IDAC to the inverter having a magnitude determined by a digital signal applied to a digital input of the digital-to-analogue converter.
    Type: Application
    Filed: June 19, 2019
    Publication date: September 2, 2021
    Applicant: Nordic Semiconductor ASA
    Inventor: Frode TELSTØ