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:
Mar. 01, 2022

Filed:

Aug. 24, 2017
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Kazuaki Doi, Kawasaki, JP;

Yoshimichi Tanizawa, Yokohama, JP;

Assignee:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 9/30 (2006.01); H04L 29/06 (2006.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 9/0858 (2013.01); H04L 9/083 (2013.01); H04L 9/0822 (2013.01); H04L 9/0855 (2013.01); H04L 9/304 (2013.01); H04L 29/06 (2013.01);
Abstract

According to an embodiment, a quantum communication device is adapted to correct first sift key data acquired by performing sift processing with respect to a quantum bit string received from a transmission device via a quantum communication path. The quantum communication device includes a determination unit and a correction unit. The determination unit determines setting information of error correction on the first sift key data from an estimated error rate of the first sift key data and a margin of the estimated error rate. The correction unit generates corrected key data by performing the error correction with the setting information.


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