Optical communications – Diagnostic testing – Test signal
Reexamination Certificate
2008-03-11
2008-03-11
Singh, Dalzid (Department: 2613)
Optical communications
Diagnostic testing
Test signal
C398S033000, C398S088000, C398S093000, C398S147000, C398S158000
Reexamination Certificate
active
11100599
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.
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Japanese Patent Office Notification of Reasons for Rejection mailed Jul. 4, 2006 for corresponding Japanese Patent Application No. 2004-569561.
Fujitsu Limited
Singh Dalzid
Stass & Halsey LLP
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