Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ryota Yamamoto0
Date of Patent
June 8, 2010
0Patent Application Number
122225850
Date Filed
August 12, 2008
0Patent Primary Examiner
Patent 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.
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