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:
Jul. 14, 2026

Filed:

Jan. 30, 2023
Applicant:

Sony Semiconductor Solutions Corporation, Kanagawa, JP;

Inventor:

Hirokazu Ejiri, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/44 (2006.01); G01R 19/10 (2006.01);
U.S. Cl.
CPC ...
G01J 1/44 (2013.01); G01R 19/10 (2013.01); G01J 2001/446 (2013.01);
Abstract

Light detection with reduced noise is disclosed. In one example, a comparator compares a signal with a reference signal and outputs a comparison result. The comparator includes a differential circuit that outputs a differential voltage between the signal and the reference signal, and an active load circuit electrically connected to the differential circuit, in which the active load circuit includes first and second transistors provided on a surface of a substrate, and the first and second transistors have channel regions extending in a direction substantially perpendicular to the surface of the substrate.


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