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. 08, 2010
Filed:
Mar. 07, 2008
Tatsuo Nagayoshi, Fukuoka, JP;
Akira Yamamoto, Fukuoka, JP;
Katsumi Sugawa, Fukuoka, JP;
Makoto Ohtou, Fukuoka, JP;
Takuji Maeda, Kawasaki, JP;
Tatsuo Nagayoshi, Fukuoka, JP;
Akira Yamamoto, Fukuoka, JP;
Katsumi Sugawa, Fukuoka, JP;
Makoto Ohtou, Fukuoka, JP;
Takuji Maeda, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An identification apparatus for identifying an optical passive device product. The apparatus includes an optical input output monitor section for monitoring an optical input and an optical output of the optical passive device product respectively; a loss calculation section for calculating a loss in the optical passive device product based on a monitoring result of the optical input output monitor section; and a product identification section in which product information indicating a correspondence between a loss characteristic and a product has been stored in advance, and which identifies the optical passive device product by comparing the stored product information and the loss calculated by the loss calculation section.