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:
Jun. 08, 2010
Filed:
Aug. 12, 2008
Applicant:
Ryota Yamamoto, Kanagawa, JP;
Inventor:
Ryota Yamamoto, Kanagawa, JP;
Assignee:
NEC Electronics Corporation, Kawasaki, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/00 (2006.01); H03L 7/099 (2006.01);
U.S. Cl.
CPC ...
Abstract
According to one aspect of the present invention, there is provided a voltage controlled oscillator controlling frequency of an output signal according to input voltage, the voltage controlled oscillator including a current controlled oscillator setting the frequency of the output signal based on control current, and a voltage-current converter including a transistor controlling a current amount of the control current according to the input voltage, in which the voltage-current converter is supplied with control voltage, and threshold value voltage of the transistor is controlled according to the control voltage.