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:
Jul. 22, 2014
Filed:
Aug. 31, 2012
Michal Polansky, South Moravia, CZ;
Zdenek Jancik, Vysocina, CZ;
Mike Jackson, Maple Grove, MN (US);
Erwan Paricaud, Haute Garonne, FR;
Michal Polansky, South Moravia, CZ;
Zdenek Jancik, Vysocina, CZ;
Mike Jackson, Maple Grove, MN (US);
Erwan Paricaud, Haute Garonne, FR;
Honeywell International Inc., Morristown, NJ (US);
Abstract
A method and apparatus includes long term and short term strategies for improving 4D trajectory reliability and required time of arrival reliability. The long term strategy changes speeds along the trajectory to remove the time error in predictions. The short term strategy compensates for wind and position error, for example, by temporarily changing an aircraft guidance speed by applying a guidance margin that would either delay or prevent re-computation of the speed targets along the flight path. The predictions would use the original speed target without the guidance margin application. The guidance speed target will stay applied until the predicted time error crosses a threshold.