Patents by Inventor STIAN LUNDLI

STIAN LUNDLI 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).

  • Asynchronous DS-CDMA receiver
    Patent number: 9086504
    Abstract: Methods, apparatus, and systems are provided for collecting data from a plurality of downhole sensors located in a wellbore utilizing an asynchronous direct-sequence code division multiple access (DS-CDMA)-based communication scheme. One example method includes receiving a superposed signal comprising asynchronous signals from the downhole sensors, wherein a spreading sequence has been applied to data generated by each of the downhole sensors to form each of the asynchronous signals; sampling the received superposed signal; and processing the sampled superposed signal using decorrelation to determine the data from at least one of the downhole sensors before the spreading sequence was applied.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: July 21, 2015
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Torgeir Anderssen Trøite, Dean Taylor Lehner, Stian Lundli, Michael Walter Jahn
  • ASYNCHRONOUS DS-CDMA RECEIVER
    Publication number: 20130321164
    Abstract: Methods, apparatus, and systems are provided for collecting data from a plurality of downhole sensors located in a wellbore utilizing an asynchronous direct-sequence code division multiple access (DS-CDMA)-based communication scheme. One example method includes receiving a superposed signal comprising asynchronous signals from the downhole sensors, wherein a spreading sequence has been applied to data generated by each of the downhole sensors to form each of the asynchronous signals; sampling the received superposed signal; and processing the sampled superposed signal using decorrelation to determine the data from at least one of the downhole sensors before the spreading sequence was applied.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 5, 2013
    Inventors: Torgeir ANDERSSEN TRØITE, DEAN TAYLOR LEHNER, STIAN LUNDLI, MICHAEL Walter JAHN