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.:

US 6727770 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 27, 2004

Filed:

Apr. 29, 2002
Applicant:
Inventors:

Seong-Beom Hong, Cheju, KR;

Jong-Goo Kim, Yongin, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 7/00 ;
U.S. Cl.
CPC ...
H03B 7/00 ;
Abstract

Disclosed is a multi-band voltage controlled oscillator circuit comprising a resonant circuit including at least one varactor, at least one capacitor and at least one inductor operated in response to a control voltage, the resonant circuit having a resonance frequency determined according to capacitances of the varactor and capacitor and an inductance of the inductor. The multi-band voltage controlled oscillator circuit further comprises at least one band selection circuit for adjusting the resonance frequency in response to a band selection signal, the band selection circuit including at least one capacitor connected in parallel to the resonant circuit, and a switching element for turning on/off the capacitor in response to the band selection signal.


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Hong, Seong-Beom. (2004). Multi-band voltage controlled oscillator circuit (U.S. Patent No. 6727770). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6727770

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