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:
Mar. 11, 2008
Filed:
Apr. 07, 2005
Yuichi Kawahata, Kawasaki, JP;
Yuichi Kawahata, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A transmission characteristics evaluation system can measure the dispersion tolerance and the insertion loss gradient tolerance at a high precision with reduced number of working steps for the measurement in evaluating the transmission characteristics of an optical module. The transmission characteristics evaluation system comprises an optical transmitting apparatus, an optical receiving apparatus for, and a pseudo transmission path apparatus interposed between the optical transmitting apparatus and the optical receiving apparatus. The pseudo transmission path apparatus has, in a pseudo manner, transmission characteristics of a transmission path to which the optical transmitting apparatus and the optical receiving apparatus are to be connected. The pseudo transmission path apparatus comprises a transmission characteristics setting section for setting transmission characteristics equivalent to the transmission characteristics that the transmission path can have, by controlling a mirror or an optical element.