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:
Dec. 25, 1979
Filed:
Apr. 20, 1978
Applicant:
Inventors:
Pierre L Breant, Clamart, FR;
Alain C Fresnel, Plaisir, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364565 ; 364433 ; 364817 ;
Abstract
By combining three single-phase output voltages of a synchro, signals are obtained which are proportional to the sine and the cosine of the angle of rotation of the synchro shaft. Said signals are sampled at predetermined instants by switching means controlled by a clock voltage, and are applied to computing means which form a signal representative of the speed of rotation of the shaft of the synchro and of a change in the altitude at which an aircraft flies.