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:
Aug. 10, 2010
Filed:
Jun. 08, 2008
Masayuki Nakamura, Tokyo, JP;
Masayuki Nakamura, Tokyo, JP;
Advantest Corporation, , JP;
Abstract
There is provided an oscillator including: a reference signal generator that generates a reference signal having a reference frequency; a phase comparator that outputs a voltage in accordance with a phase difference between the reference signal and a feedback signal; a loop filter that receives a voltage output from the phase comparator, and gain-adjusts a voltage output from the phase comparator by means of an external control signal; a voltage controlled oscillator that oscillates an output signal at a frequency in accordance with an adjusted signal having been gain-adjusted by the loop filter; and a frequency divider that feeds back a frequency-divided signal resulting from frequency-dividing the output signal, to the phase comparator as the feedback signal.