Patents by Inventor Sander Lars Jansen

Sander Lars Jansen 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).

  • Coherent optical communication apparatus and method
    Patent number: 8081885
    Abstract: The present invention relates to a coherent optical communication apparatus and method. According to the invention, the optical communication apparatus receives a modulated optical signal, which is generated by modulating an optical signal with a first electrical signal obtained by adding a second electrical signal carrying information to be transmitted and a reference electrical signal, and converts the modulated optical signal to a third electrical signal by coherent detection. Then the apparatus detects an amount of fluctuation of the reference electrical signal included in the third electrical signal, and compensates the second electrical signal included in the third electrical signal using the amount of fluctuation.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: December 20, 2011
    Assignee: KDDI Corporation
    Inventors: Sander Lars Jansen, Itsuro Morita
  • COHERENT OPTICAL COMMUNICATION APPARATUS AND METHOD
    Publication number: 20080232823
    Abstract: The present invention relates to a coherent optical communication apparatus and method. According to the invention, the optical communication apparatus receives a modulated optical signal, which is generated by modulating an optical signal with a first electrical signal obtained by adding a second electrical signal carrying information to be transmitted and a reference electrical signal, and converts the modulated optical signal to a third electrical signal by coherent detection. Then the apparatus detects an amount of fluctuation of the reference electrical signal included in the third electrical signal, and compensates the second electrical signal included in the third electrical signal using the amount of fluctuation.
    Type: Application
    Filed: February 26, 2008
    Publication date: September 25, 2008
    Applicant: KDDI CORPORATION
    Inventors: Sander Lars JANSEN, Itsuro MORITA