Patents by Inventor Anker Josefsen

Anker Josefsen 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).

  • Amplifiers
    Patent number: 7071752
    Abstract: A digital amplifier includes a noise shaper and a dither generator arranged to introduce noise to the shaper. The generator uses a seed value derived from a state variable of the shaper.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: July 4, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: Venkateswar R. Kowkutla, Shifeng Zhao, Luis E. Ossa, Kenneth M. Bell, Anker Josefsen, Lars Risbo
  • Switching circuits
    Patent number: 7034609
    Abstract: A technique to implement removal of dead time control circuitry from the back-end of a digital switching amplifier system 100 and add dead time control circuitry on the front-end digital modulator chip. The front-end dead time control circuitry adaptively adjusts timing of the output PWM control signals 124 to optimize performance and power consumption, i.e. operate with minimum dead time for all transitions. The front-end dead time control circuitry controls all propagation delays associated with the digital switching amplifier system 100.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 25, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: Lars Risbo, Anker Josefsen
  • Switching circuits
    Publication number: 20050099226
    Abstract: A technique to implement removal of dead time control circuitry from the back-end of a digital switching amplifier system 100 and add dead time control circuitry on the front-end digital modulator chip. The front-end dead time control circuitry adaptively adjusts timing of the output PWM control signals 124 to optimize performance and power consumption, i.e. operate with minimum dead time for all transitions. The front-end dead time control circuitry controls all propagation delays associated with the digital switching amplifier system 100.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 12, 2005
    Inventors: Lars Risbo, Anker Josefsen
  • Amplifiers
    Publication number: 20040239417
    Abstract: A digital amplifier includes a noise shaper and a dither generator arranged to introduce noise to the shaper. The generator uses a seed value derived from a state variable of the shaper.
    Type: Application
    Filed: January 29, 2004
    Publication date: December 2, 2004
    Inventors: Venkateswar R. Kowkutla, Shifeng Zhao, Luis E. Ossa, Kenneth M. Bell, Anker Josefsen, Lars Risbo
  • Amplifiers
    Publication number: 20020060605
    Abstract: A digital amplifier includes a noise shaper and a dither generator arranged to introduce noise to the shaper. The generator uses a seed value derived from a state variable of the shaper.
    Type: Application
    Filed: August 31, 2001
    Publication date: May 23, 2002
    Inventors: Venkateswar R. Kowkutla, Shifeng Zhao, Luis E. Ossa, Kenneth M. Bell, Anker Josefsen, Lars Risbo, Michael J. Tsecouras