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:
May. 14, 2019

Filed:

Mar. 14, 2016
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Takashi Aoyama, Chino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 3/08 (2006.01); G01C 19/5642 (2012.01); H03F 3/45 (2006.01); H03K 5/24 (2006.01); G01C 19/5776 (2012.01);
U.S. Cl.
CPC ...
G01C 19/5642 (2013.01); G01C 19/5776 (2013.01); G01D 3/08 (2013.01); H03F 3/45475 (2013.01); H03K 5/24 (2013.01); H03F 2200/261 (2013.01); H03F 2203/45118 (2013.01); H03F 2203/45138 (2013.01); H03F 2203/45522 (2013.01); H03F 2203/45526 (2013.01); H03F 2203/45528 (2013.01);
Abstract

A circuit device includes a differential input-to-single-ended output first amplifier, to an inversion input terminal of which, of first and second signals forming differential signals, the first signal is input and to a non-inversion input terminal of which the second signal is input, a differential input-to-single-ended output second amplifier, to a non-inversion input terminal of which the first signal is input and to an inversion input terminal of which the second signal is input, and a failure detection circuit that performs failure detection on the basis of an output signal of the first amplifier and an output signal of the second amplifier.


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