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:
Oct. 14, 1980
Filed:
Mar. 05, 1979
Applicant:
Inventors:
Bernard F Guy, Versailles, FR;
Michel A Lacroix, Velizy, FR;
Assignee:
Le Materiel Telephonique, Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09B / ; B64C / ;
U.S. Cl.
CPC ...
35 1 / ; 244228 ;
Abstract
The invention relates to the simulation of an aircraft's flight controls and particularly the mechanical reactions produced on the pilot's controls. The reaction force is produced by a servo-controlled, hydraulic actuator whose piston moves a distance X which is proportional to the deflection of the pilot's control. A servo signal, whose amplitude is proportional to the component of the reaction force depending on the displacement X, is obtained by digital calculation, filtering and analogue multiplication. The invention can be applied to flight training systems and to artificial feel systems (AFS).