×

Emergency reporting for marine and airborne vessels

  • US 5,355,140 A
  • Filed: 09/15/1992
  • Issued: 10/11/1994
  • Est. Priority Date: 09/15/1992
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for reporting of an emergency event experienced by a marine or airborne vessel, or one of the occupants of the vessel, the method comprising the steps of:

  • receiving signals transmitted by three or more satellites in a Global Positioning System by a position-determining module located on the vessel;

    determining, from these received signals, the present position of the vessel and the quality of the present position fix that estimates the inaccuracy of the vessel present position fix at each of an ordered sequence of times;

    when an emergency event occurs, determining the approximate time of occurrence of such event, the position of the vessel and the quality of the position fix at approximately the time such event occurred; and

    broadcasting the approximate time and position and present position fix quality of the vessel when the emergency event occurs on a selected frequency in at least one of the Emergency Radiowave Bands.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×