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. 29, 1980
Filed:
Jun. 16, 1978
Applicant:
Inventors:
Bigley William J, Scotch Plains, NJ (US);
Vincent J Rizzo, Basking Ridge, NJ (US);
Assignee:
Lockheed Electronics Co., Inc., Plainfield, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318327 ; 318618 ; 318448 ;
Abstract
A rate-control servomechanism includes a load driving motor and a tachometer mounted on the motor shaft to produce a feedback signal hich corresponds to the rotational speed of the motor. An additional signal corresponding to the motor current is added to the tachometer feedback signal to compensate for the resonance-like effects resulting from the inductive coupling between the motor and tachometer windings.