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:
Mar. 09, 1976
Filed:
Aug. 02, 1974
Applicant:
Inventor:
Paul A Ryan, Columbus, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03J / ;
U.S. Cl.
CPC ...
334 59 ; 331179 ; 331181 ; 334 56 ; 336150 ;
Abstract
A digital tuning device for accurate selectable tuning of a resonant circuit. The inductive and capacitive elements of the resonant circuit are connected by a transformer device whose turns ratio is variable in accurate digital increments. Since the reflected reactance is related to the square of the turns ratio and since the resonant frequency varies as the inverse square root of the reactance, the resonant frequency of the circuit is directly related to the turns ratio.
Ryan, Paul. (1976). Digital tuning device (U.S. Patent No. 3943471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3943471
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile