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:
Jun. 23, 2009
Filed:
Jan. 31, 2006
Yuji Shimada, Kawasaki, JP;
Takuji Maeda, Kawasaki, JP;
Kouji Nekoda, Fukuoka, JP;
Masanori Kondoh, Kawasaki, JP;
Taro Asao, Kawasaki, JP;
Yuji Shimada, Kawasaki, JP;
Takuji Maeda, Kawasaki, JP;
Kouji Nekoda, Fukuoka, JP;
Masanori Kondoh, Kawasaki, JP;
Taro Asao, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical transmission device includes: an attenuator that attenuates an optical signal before being input into an optical element by a predetermined attenuation amount determined so that a level of an adjustment optical signal input into the optical element falls within a predetermined dynamic range of the optical element; and a controller that adjusts the predetermined attenuation amount so that a level of the optical signal input into the optical element falls within the predetermined dynamic range.