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:
Aug. 16, 2022
Filed:
Sep. 04, 2019
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Uichi Ishida, Kanagawa, JP;
Takashi Nakamura, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Tokyo, JP;
Abstract
An oscillator circuit includes a current source, an oscillating section, a first capacitor, and a setting section. The current source is coupled to a connection node and causes a current having a current value based on an input voltage to flow from a first power node to the connection node. The oscillating section is on a current path between the connection node and a second power node. The oscillating section oscillates at an oscillation frequency based on a current flowing through the current path. The first capacitor is between the connection node and the second power node. The first capacitor has a capacitance that varies in accordance with a voltage at the connection node. The setting section that performs variation operation based on the voltage at the connection node. The variation operation is operation of varying an impedance between the connection node and the second power node.