Patents by Inventor Dan Wahlbeck

Dan Wahlbeck 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).

  • Spread spectrum in-band utility communication channel
    Patent number: 7702245
    Abstract: Utility data modulation is superimposed on a payload data modulator optical signal by exploiting spread spectrum techniques by virtue of one embodiment of the present invention. Utility data transmission rates of e.g., 200 Kbps, can be achieved without impairment to payload data transmission. The utility data modulated signal spectrum overlaps or is entirely within the payload data modulation spectrum, therefore, overcoming problems with optical amplifier gain control and pink noise.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: April 20, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Goran Mork, Johan Martensson, Dan Wahlbeck