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:
Jun. 04, 1996
Filed:
Aug. 05, 1994
Robert M Agate, Everett, WA (US);
Ronald J Bloom, Bellevue, WA (US);
John E Cashman, Redmond, WA (US);
Robert E Chaney, Bellevue, WA (US);
John C Griffin, III, Tacoma, WA (US);
Charles A Hovland, Des Moines, WA (US);
Ronald Lilischkies, Avon, CO (US);
Joseph M MacDonald, Issaquah, WA (US);
Timothy C McRoberts, Kirkland, WA (US);
Frank P Santoni, Jr, Redmond, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
An improvement to an autopilot flight director system allows the flight crew to make a late runway change without disengaging the autopilot. The improved system allows a transition to a new runway assignment if radio altitude is greater than 1500 feet. Control logic determines whether or not localizer and/or glideslope have been captured and enters predetermined modes as a function thereof to effect a transition to the new approach while enabling instrument landing system retuning while maintaining autopilot engagement. Flight crew workload during approach is significantly reduced as a result of implementation of the improved system.