Patents Assigned to Trimble Navigaiton Limited
  • Time synchronization for seismic exploration system
    Patent number: 5978313
    Abstract: A system and method for synchronizing collection of seismic data used for seismic surveys. In one embodiment, positioning signals received from a positioning system, such as the Global Positioning System, are used to acquire a highly accurate time value. Data collection is then initiated at a prespecified time using the time determined from the positioning signal.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: November 2, 1999
    Assignee: Trimble Navigaiton Limited
    Inventor: Harold L. Longaker