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. 27, 2015
Filed:
Sep. 12, 2011
Ken-ichi Sato, Nagoya, JP;
Hiroshi Hasegawa, Nagoya, JP;
Ryosuke Hirako, Nagoya, JP;
NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, Nagoya, JP;
Abstract
An optical signal terminating apparatus for an optical path network includes: a variable filter selecting an optical signal of a predetermined wavelength path making up any one of a plurality of wavebands included in one wavelength division multiplexing light selected from a plurality of wavelength division multiplexing lights respectively transmitted in parallel via a plurality of optical fibers to a relay node in the optical path network, the variable filter dropping the optical signal to an electric layer, the variable filter including a waveband separator separating the wavelength division multiplexing light into a plurality of wavebands, a waveband selector selecting one waveband from a plurality of wavebands separated by the waveband separator, a wavelength separator separating one waveband selected by the waveband selector into wavelengths, and a drop wavelength selector.