Patents by Inventor Tor Erik Leistad

Tor Erik Leistad 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).

  • Frequency locking oscillator
    Patent number: 9257969
    Abstract: A delay line of individually selectable delay elements can operate as an oscillator in an open loop mode to track process variation or drive a clock signal that varies with temperatures and voltages in the system. The delay line oscillator can also operate in a closed loop mode to match a frequency given by a tuner ratio and a reference clock. The delay line can also be used for measuring clock jitter or duty cycle.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: February 9, 2016
    Assignee: Atmel Corporation
    Inventors: Tor Erik Leistad, Frode Milch Pedersen, Fredrik Larsen
  • Frequency Locking Oscillator
    Publication number: 20130027103
    Abstract: A delay line of individually selectable delay elements can operate as an oscillator in an open loop mode to track process variation or drive a clock signal that varies with temperatures and voltages in the system. The delay line oscillator can also operate in a closed loop mode to match a frequency given by a tuner ratio and a reference clock. The delay line can also be used for measuring clock jitter or duty cycle.
    Type: Application
    Filed: October 1, 2012
    Publication date: January 31, 2013
    Inventors: Tor Erik Leistad, Frode Milch Pedersen, Fredrik Larsen
  • Frequency locking oscillator
    Patent number: 8279015
    Abstract: A delay line of individually selectable delay elements can operate as an oscillator in an open loop mode to track process variation or drive a clock signal that varies with temperatures and voltages in the system. The delay line oscillator can also operate in a closed loop mode to match a frequency given by a tuner ratio and a reference clock. The delay line can also be used for measuring clock jitter or duty cycle.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: October 2, 2012
    Assignee: Atmel Corporation
    Inventors: Tor Erik Leistad, Frode Milch Pedersen, Fredrik Larsen
  • Frequency Locking Oscillator
    Publication number: 20120068775
    Abstract: A delay line of individually selectable delay elements can operate as an oscillator in an open loop mode to track process variation or drive a clock signal that varies with temperatures and voltages in the system. The delay line oscillator can also operate in a closed loop mode to match a frequency given by a tuner ratio and a reference clock. The delay line can also be used for measuring clock jitter or duty cycle.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 22, 2012
    Applicant: ATMEL CORPORATION
    Inventors: Tor Erik Leistad, Frode Milch Pedersen, Fredrik Larsen