Optical communications – Diagnostic testing – Determination of communication parameter
Reexamination Certificate
2006-11-21
2006-11-21
Li, Shi K. (Department: 2613)
Optical communications
Diagnostic testing
Determination of communication parameter
Reexamination Certificate
active
07139479
ABSTRACT:
An optical transmission network allows transmission monitoring zones to be set up or changed in a flexible manner, and allows simultaneous monitoring of communication quality for each of these monitoring zones. Also, provided is an optical transmission zone service provider that varies user fees according to communication quality in the used zones.
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Atsumi Toshiyuki
Ishii Ryuji
Mori Tomohiro
Ohira Masaki
Okamoto Toru
Hitachi , Ltd.
Li Shi K.
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