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:
Aug. 25, 2026

Filed:

Jun. 07, 2021
Applicant:

Ntt, Inc., Tokyo, JP;

Inventors:

Masahiro Nakagawa, Musashino, JP;

Hiroki Kawahara, Musashino, JP;

Takeshi Seki, Musashino, JP;

Assignee:

NTT, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 11/00 (2006.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
H04Q 11/0005 (2013.01); H04J 14/0305 (2023.08); H04Q 2011/0016 (2013.01); H04Q 2011/0058 (2013.01);
Abstract

A wavelength cross connect device includes: a plurality of input-side WSSes each configured to split a wavelength multiplexed signal beam into a predetermined number of wavelength multiplexed signal beams; a plurality of wavelength band switch processing units provided for each of the input-side WSSes and each configured to convert optical signals of distinct wavelength bands multiplexed in a corresponding one of the predetermined number of wavelength multiplexed signal beams each from one wavelength band to another within the distinct wavelength bands, to generate a wavelength-band-converted wavelength multiplexed signal beam; and a plurality of output-side WSSes mesh-connected to the plurality of input-side WSSes and each configured to, for each mesh-connected input-side WSS, receive the wavelength-band-converted wavelength multiplexed signal beam generated by each wavelength band switch processing unit and one of the split predetermined number of wavelength multiplexed signal beams.


Find Patent Forward Citations

Nakagawa, Masahiro. (2026). Wavelength cross connect device, and wavelength cross connect method (U.S. Patent No. 12720239). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12720239

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

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