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. 25, 1989
Filed:
Apr. 15, 1988
Applicant:
Inventor:
Jurgen Rabiger, Duren, DE;
Assignee:
Kernforschungsanlage Julich GmbH, Julich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B / ; H03K / ;
U.S. Cl.
CPC ...
328 15 ; 328140 ; 307271 ; 377 47 ; 377 52 ;
Abstract
A method of and an apparatus for generating a control frequency in which two submultiples of a frequency standard are obtained which differ by unity in the respective frequency division and are mixed so that the contribution of a prior control frequency is reduced form period group to period group while the contribution of the new control frequency is increased from period group to period group. The system provides fine control of frequencies for, for example, driving synchronous motors without requiring excessively high frequency standard oscillators.