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:
May. 05, 2009
Filed:
Sep. 13, 2005
Akihisa Shibuya, Nagasaki, JP;
Koji Tsukamoto, Nagasaki, JP;
Yasuhide Shimizu, Nagasaki, JP;
Tsuyoshi Tanaka, Nagasaki, JP;
Akihisa Shibuya, Nagasaki, JP;
Koji Tsukamoto, Nagasaki, JP;
Yasuhide Shimizu, Nagasaki, JP;
Tsuyoshi Tanaka, Nagasaki, JP;
Sony Corporation, Tokyo, JP;
Abstract
An oscillator circuit having a closed loop connection, including: an oscillator for generating an output signal oscillating at a frequency corresponding to a control signal; a frequency/voltage converter for generating a detection signal having a voltage corresponding to a frequency of the output signal; a difference detector for generating a difference signal indicating a difference between the detection signal and a reference signal; and an integrator for generating the control signal by integrating the difference signal.