Townsend and Townsend and Crew LLP
Method and apparatus for optical network administration
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.
Hitachi, Ltd.
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Toru Ryuji Tomohiro Masahiro Toshiyuki Yuichi Kentarou Masaki
Okamoto Ishii Mori Takatori Atsumi Yamaguchi Watanabe Ohira