Patents by Inventor Geir A. M. Drange

Geir A. M. Drange 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).

  • Distributing a clock in a subterranean survey data acquisition system
    Patent number: 8594962
    Abstract: A technique includes determining a first difference between a time that a first network element of a seismic acquisition network receives a first frame pulse from a second network element of the seismic acquisition network and a time that the first network element transmits a second frame pulse to the second network element. The technique includes determining a second difference between a time that the second network element receives the second frame pulse and a time that the second network element transmits the first frame pulse. The technique includes determining a transmission delay between the first and second network elements based on the first and second time differences.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: November 26, 2013
    Assignee: WesternGeco L.L.C.
    Inventor: Geir A. M. Drange
  • Seismic Streamer Connection Unit
    Publication number: 20120081994
    Abstract: An apparatus includes a streamer cable section and a unit. The streamer cable section includes an associated group of seismic sensors. The unit connects to an end of the streamer cable section and includes a steering device, a controller, a network repeater and a router. The steering device is controllable to position the streamer section; the controller gathers seismic data provided by the associated group of seismic sensors and introduces the seismic data to a telemetry network of a streamer; the network repeater repeats a signal communicated along the telemetry network; and the router is disposed between the controller and the telemetry network.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 5, 2012
    Inventors: Vidar Anders Husom, Geir A. M. Drange, Svein Arne Frivik, Rune Voldsbekk, Roger Ellingsen, Olav Oeiberg, Jens Olav Paulsen
  • DISTRIBUTING A CLOCK IN A SUBTERRANEAN SURVEY DATA ACQUISITION SYSTEM
    Publication number: 20100305895
    Abstract: A technique includes determining a first difference between a time that a first network element of a seismic acquisition network receives a first frame pulse from a second network element of the seismic acquisition network and a time that the first network element transmits a second frame pulse to the second network element. The technique includes determining a second difference between a time that the second network element receives the second frame pulse and a time that the second network element transmits the first frame pulse. The technique includes determining a transmission delay between the first and second network elements based on the first and second time differences.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Inventor: Geir A. M. Drange