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.

Date of Patent:
Dec. 27, 2022

Filed:

Jun. 09, 2021
Applicant:

Seiko Epson Corporation, Toyko, JP;

Inventor:

Kohei Beppu, Minowa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); G06F 1/04 (2006.01); H03B 5/36 (2006.01); H03B 5/32 (2006.01);
U.S. Cl.
CPC ...
H03K 17/6872 (2013.01); G06F 1/04 (2013.01); H03B 5/32 (2013.01); H03B 5/364 (2013.01); H03K 17/6874 (2013.01); H03B 2200/0034 (2013.01);
Abstract

The circuit device includes a first MOS transistor of a first conductivity type a source of which is coupled to a first power supply voltage node, a second MOS transistor of a second conductivity type a source of which is coupled to a second power supply voltage node, a first variable resistance circuit which is coupled between a drain of the first MOS transistor and an output node, and which includes a first switch, and a second switch coupled between the drain of the first MOS transistor and the second power supply voltage node. The control circuit performs control of making the first switch OFF and making the second switch ON when the clock signal fails to be output from the output node, and making the first switch ON and making the second switch OFF when the clock signal is output from the output node.


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