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.:
Date of Patent:
Oct. 07, 2025
Filed:
Mar. 13, 2023
Applicant:
Nec Corporation, Tokyo, JP;
Inventor:
Yohei Hasegawa, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/073 (2013.01); H04B 10/077 (2013.01); H04Q 11/00 (2006.01);
U.S. Cl.
CPC ...
H04B 10/0775 (2013.01); H04Q 11/0005 (2013.01);
Abstract
A switching device includes an optical communication unit configured to receive an optical communication signal; and a control unit configured to switch a path for the optical communication unit to receive an optical communication signal based on at least one of reception power of the optical communication signal received by the optical communication unit, an error rate of a synchronous signal therefor, an error rate after signal demodulation thereof, an error rate after error correction decoding thereof, and an SN (Signal-to-Noise) ratio of the path for the optical communication signal.