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:
Sep. 11, 2018
Filed:
Mar. 21, 2016
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Naohisa Obata, Minowa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/32 (2006.01); H03L 1/04 (2006.01); H03B 5/36 (2006.01); H03L 1/02 (2006.01);
U.S. Cl.
CPC ...
H03L 1/04 (2013.01); H03B 5/36 (2013.01); H03B 5/366 (2013.01); H03L 1/022 (2013.01); H03L 1/026 (2013.01); H03L 1/028 (2013.01);
Abstract
An oscillator includes a resonator element; an oscillation circuit which outputs an oscillation signal by oscillating the resonator element; and a temperature compensation circuit as a frequency control circuit which controls an oscillation frequency of the oscillation signal, wherein, if a resonance frequency of the resonator element is referred to as Fr (MHz) and an equivalent series capacitance is referred to as C1 (fF), a relationship of C1≥0.00279×Fr−0.05684×Fr+2.69481 is satisfied.