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:
Aug. 23, 1977
Filed:
Jul. 28, 1972
Applicant:
Inventor:
Boleslaw Marian Sosin, Chelmsford, EN;
Assignee:
The Marconi Company Limited, , EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 / ; 331 10 ; 331 14 ; 331 16 ;
Abstract
A frequency synthesizer in which the frequency of a variable frequency oscillator is controlled by means of a control signal and wherein means are provided for determining whether any frequency variation results from a drift in the frequency of the variable frequency oscillator means being provided for generating and maintaining an additional drift control signal to compensate for such drift. The drift control signal is inhibited from change either when it is detected that the control signal is in excess of that which would result solely from drift or the control signal is representative only of a quantisation error.