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. 07, 2020
Filed:
Feb. 21, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Yutaka Yamazaki, Okaya, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04G 3/00 (2006.01); G04G 3/04 (2006.01); G04B 47/06 (2006.01); H03B 5/36 (2006.01);
U.S. Cl.
CPC ...
G04G 3/04 (2013.01); G04B 47/068 (2013.01); H03B 5/364 (2013.01);
Abstract
An oscillation device includes an oscillation circuit configured including an oscillation inverter, and adapted to oscillate a resonator, a frequency adjustment circuit adapted to perform frequency adjustment of the oscillation circuit, and a constant voltage circuit adapted to drive the oscillation circuit, in the oscillation circuit and the frequency adjustment circuit, a gate and a substrate of a field-effect transistor having a connection relationship with one of a gate and a drain of the oscillation inverter are driven with a constant voltage.