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:
Sep. 09, 2014
Filed:
Mar. 19, 2012
Applicant:
Doron Gamliel, Kiriat-Ata, IL;
Inventor:
Doron Gamliel, Kiriat-Ata, IL;
Assignee:
Scientific Components Corporation, Brooklyn, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/282 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ultra-low phase noise voltage controlled oscillator uses a single bipolar transistor Colpitts oscillator circuit and a noise-reducing negative feedback path consisting of a capacitor and a second element which may be a second capacitor, an inductor or a resistor. The negative feedback path is kept separate from any DC biasing paths in the circuit. A pair of varactor diodes are used to provide resonant frequency control.