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:
Jan. 19, 2016
Filed:
Apr. 15, 2014
Applicant:
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Inventors:
Masaki Hirose, Kanagawa, JP;
Yukio Akazawa, Kanagawa, JP;
Hiroki Hamaguchi, Kanagawa, JP;
Takehito Ishii, Saitama, JP;
Noritoshi Kimura, Saitama, JP;
Assignee:
NIHON DEMPA KOGYO CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/36 (2006.01); H03B 21/01 (2006.01);
U.S. Cl.
CPC ...
H03B 21/01 (2013.01); H03B 5/366 (2013.01); H03B 2201/02 (2013.01);
Abstract
An oscillator circuit includes a first resonator, a second resonator, and a frequency adjusting unit. The second resonator has a frequency characteristic different from a frequency characteristic of the first resonator. The frequency adjusting unit is configured to change a ratio between a contribution of the first resonator and a contribution of the second resonator so as to adjust an output frequency.