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:
Dec. 15, 2015
Filed:
Aug. 07, 2014
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Tsuyoshi Yoneyama, Chino, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/04 (2006.01); H03B 5/30 (2006.01); H03L 1/02 (2006.01); H03B 5/36 (2006.01);
U.S. Cl.
CPC ...
H03B 5/36 (2013.01); H03B 5/04 (2013.01); H03B 5/30 (2013.01); H03L 1/022 (2013.01); H03L 1/026 (2013.01); H03B 2201/025 (2013.01); H03B 2201/0208 (2013.01); H03B 2201/038 (2013.01);
Abstract
An oscillation circuit includes a temperature compensating section to which electric power is supplied from a main power supply and a backup power supply, an oscillating section, a function of which is compensated by a signal from the temperature compensating section, and a switch and a power-supply monitoring circuit configured to select, when the temperature compensating section is not operating, at least one of the main power supply and the backup power supply and control connection to the temperature compensating section.