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:
Sep. 07, 2010
Filed:
Aug. 16, 2005
Applicants:
Yuichi Akiyama, Kawasaki, JP;
Takafumi Terahara, Kawasaki, JP;
Hiroki Ooi, Kawasaki, JP;
Jens C. Rasmussen, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Akihiko Isomura, Kawasaki, JP;
Inventors:
Yuichi Akiyama, Kawasaki, JP;
Takafumi Terahara, Kawasaki, JP;
Hiroki Ooi, Kawasaki, JP;
Jens C. Rasmussen, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Akihiko Isomura, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A core unit arranged in a transmission path includes a through path for causing an input signal to an input port to pass through to an output port, a drop-side portthat drops the input signal having a predetermined wavelength, and an add-side portthat adds channel having a predetermined wavelength to the input light.