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:
Nov. 11, 2025

Filed:

Feb. 23, 2022
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Hiroshi Kubota, Yokohama Kanagawa, JP;

Nobu Matsumoto, Ebina Kanagawa, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/48 (2006.01); G01S 7/4863 (2020.01);
U.S. Cl.
CPC ...
G01S 7/4863 (2013.01);
Abstract

A light detector according to one embodiment includes pixels, selection circuits, and an output circuit. The pixels each includes an avalanche photodiode. The selection circuits are respectively coupled to the pixels. The selection circuits are configured to output a signal output from a pixel selected from the pixels to a first node. The output circuit is coupled to the first node. The output circuit is configured to apply a first operating voltage to the avalanche photodiode included in the selected pixel via a selection circuit of the selection circuits that is coupled to the selected pixel, output an current based on the signal output from the selected pixel to a second node, and change the first operating voltage.


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