Patents by Inventor Fred Larsen

Fred Larsen 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).

  • Adaptive integrated hybrid with complex adaptation for digital subscriber line systems
    Patent number: 8619969
    Abstract: An adaptive hybrid system is coupled to a loop for adjusting trans-hybrid loss. The system comprises a fixed portion comprising a first receiver transfer function block and a first hybrid transfer function block. The fixed portion is configured to receive a far-end signal and mitigate frequency dependent attenuation experienced by the far-end signal. The system also comprises a variable portion comprising a second receiver transfer function block and a second hybrid transfer function block configured to subtract a transmit echo from the received far-end signal.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: December 31, 2013
    Assignee: Ikanos Communications, Inc.
    Inventors: Arnold Muralt, Eduard Sackinger, Fenghua Zheng, Fred Larsen
  • ADAPTIVE INTEGRATED HYBRID WITH COMPLEX ADAPTATION FOR DIGITAL SUBSCRIBER LINE SYSTEMS
    Publication number: 20110044415
    Abstract: An adaptive hybrid system is coupled to a loop for adjusting trans-hybrid loss. The system comprises a fixed portion comprising a first receiver transfer function block and a first hybrid transfer function block. The fixed portion is configured to receive a far-end signal and mitigate frequency dependent attenuation experienced by the far-end signal. The system also comprises a variable portion comprising a second receiver transfer function block and a second hybrid transfer function block configured to subtract a transmit echo from the received far-end signal.
    Type: Application
    Filed: August 17, 2010
    Publication date: February 24, 2011
    Applicant: Ikanos Communications, Inc.
    Inventors: Arnold Muralt, Eduard Sackinger, Fenghua Zheng, Fred Larsen