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:
Dec. 05, 2023
Filed:
May. 18, 2022
Fujitsu Limited, Kawasaki, JP;
Tomoaki Watanabe, Kawasaki, JP;
Yoshinobu Matsukawa, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A wavelength conversion device includes: a memory; and a processor configured to: receive transmission signal light in which first wavelength division multiplexing signal light and second wavelength division multiplexing signal light that have different wavelength bands in which a plurality of rays of main signal light is wavelength-multiplexed are combined with supervisory control signal light that relates to supervisory control of the first wavelength division multiplexing signal light and the second wavelength division multiplexing signal light from a transmission line and that demultiplexes the supervisory control signal light from the transmission signal light; detect input power of the supervisory control signal light; demultiplexer each of the first wavelength division multiplexing signal light and the second wavelength division multiplexing signal light from the transmission signal light; convert at least one of the wavelength bands of the first wavelength division multiplexing signal light and the second wavelength division multiplexing signal light.