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:
Apr. 02, 2013
Filed:
Dec. 06, 2009
Yuki Murakami, Kawasaki, JP;
Katsumi Sugawa, Fukuoka, JP;
Toshiyuki Hisano, Fukuoka, JP;
Akihiro Horiuchi, Fukuoka, JP;
Yuki Murakami, Kawasaki, JP;
Katsumi Sugawa, Fukuoka, JP;
Toshiyuki Hisano, Fukuoka, JP;
Akihiro Horiuchi, Fukuoka, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A propagation apparatus includes a plurality of dispersion compensation execution units which accept a signal of a single wavelength from a wavelength-multiplexed signal which is received and execute dispersion compensation on the signal by inputting the accepted signal to a tunable dispersion compensator with an adjusted dispersion value, and a dispersion value calculation unit which acquires each dispersion value adjusted by the plurality of the dispersion compensation execution units, approximates the dispersion value of the wavelength assigned to a newly built line by using the acquired dispersion values whose signal error rates are in a tolerable range, and sets the approximated dispersion value as an initial value in the tunable dispersion compensator of the newly built line.