The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2009
Filed:
May. 16, 2007
Clark E. Cohen, Washington, DC (US);
David A. Whelan, Newport Coast, CA (US);
Robert W. Brumley, Narberth, PA (US);
Gregory M. Gutt, Ashburn, VA (US);
Barton G. Ferrell, Troy, IL (US);
Clark E. Cohen, Washington, DC (US);
David A. Whelan, Newport Coast, CA (US);
Robert W. Brumley, Narberth, PA (US);
Gregory M. Gutt, Ashburn, VA (US);
Barton G. Ferrell, Troy, IL (US);
The Boeing Company, Chicago, IL (US);
Abstract
A low earth orbit (LEO) satellite data uplink is provided. In one embodiment, a method of providing a data uplink to a LEO satellite includes determining position information using a LEO signal received from the LEO satellite, a first ranging signal received from a first ranging source, and a second ranging signal received from a second ranging source. The method also includes determining a timing advance parameter using a local clock reference and a LEO satellite clock reference. The method further includes preparing a data uplink signal comprising uplink data to be broadcast to the LEO satellite. In addition, the method includes synchronizing the data uplink signal with the LEO satellite using the timing advance parameter. The method also includes broadcasting the data uplink signal to the LEO satellite.