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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.:

US 12707171 B1

PDFFull Text
Date of Patent:
Aug. 11, 2026

Filed:

Nov. 10, 2022

Photon count identification system, photon count identification method, and photon count identification processing program

Applicant:

Hamamatsu Photonics K.k., Hamamatsu, JP;

Inventors:

Takafumi Higuchi, Hamamatsu, JP;

Teruo Takahashi, Hamamatsu, JP;

Mao Nakajima, Hamamatsu, JP;

Katsuhiro Nakamoto, Hamamatsu, JP;

Assignee:

HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;

Attorney:

Faegre Drinker Biddle & Reath LLP

Primary Examiner:

Marly S Camargo

Int. Cl.
CPC ...
H04N 25/773 (2023.01); H04N 25/60 (2023.01); H04N 25/616 (2023.01); H04N 25/618 (2023.01); H04N 25/76 (2023.01); H04N 25/778 (2023.01); H10F 30/225 (2025.01);
U.S. Cl.
CPC ...
H04N 25/773 (2023.01); H04N 25/616 (2023.01); H04N 25/778 (2023.01);
Abstract

A photon number resolving system includes: a plurality of pixels of which each includes a photoelectric conversion element and an amplifier for amplifying the electric charges converted by the photoelectric conversion element and converting the electric charges to a voltage; an A/D converter configured to convert a voltage output from the amplifier of each of the plurality of pixels to a digital value; a first deriving unit configured to derive a provisional value of a photon number in each pixel of the plurality of pixels based on the digital value; and a second deriving unit configured to derive a confirmed value of a photon number in a target pixel based on a first probability based on optical shot noise and a second probability based on reading noise.

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Higuchi, Takafumi. (2026). Photon count identification system, photon count identification method, and photon count identification processing program (U.S. Patent No. 12707171). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12707171

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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