Patents by Inventor Richard Achille Habel

Richard Achille Habel 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).

  • Out-of-band vehicle for optical channel overhead information
    Patent number: 6592273
    Abstract: An out of band vehicle for an optical network is used for transporting overhead (OH) data between 3R network elements, irrespective of the format or/and rate of the OH data. At the first 3R network element, the OH data is up-converted at a frequency fch, and the resulting signal is combined with the traffic and transmitted to a second 3R network element. The inverse operation is effected at the second 3R network element by down-converting the combined signal. The frequency fch is selected to be in a null of the traffic spectrum, so as to not interfere with the traffic.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: July 15, 2003
    Assignee: Nortel Networks Limited
    Inventors: Richard Achille Habel, Alan Glen Solheim
  • Eye quality monitor for a 2R regenerator
    Patent number: 6433899
    Abstract: The method of monitoring the quality of an optical signal at the site of a 2R or 1R regenerator, without performing a clock recovery operation, is based on slicing the recovered voltage with a threshold voltage, manipulated according to a pattern, and averaging the output of the slicer. An eye diagram is simulated by a diagram representing the average voltage versus the threshold voltage.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: August 13, 2002
    Assignee: Nortel Networks Limited
    Inventors: Peter Jeremy Anslow, Richard Achille Habel, Alan Glen Solheim