Ryoichi Sasaki, Tsutomu Nakamura, Michio Suzuki, Kohsuke Shinnai, Nobuhiko Ido, Tomoaki Tsunoda: Network control method and apparatus therefor. Hitachi, Hitachi Micro Computer Engineering, Pennie & Edmonds, April 24, 1990: US04920529 (49 worldwide citation)

A network management system prepares an optimum configuration table corresponding to a failure of a transit trunk and distributes the same to each TDM, and thereby the optimization of reconfiguration of a high-speed digital network is enabled.

Toshiya Oouchi, Keiko Kuroda, Nobuhiko Ido: Method of and system for monitoring packet rate in packet network. Hitachi, Antonelli Terry Stout & Kraus, May 31, 1994: US05317563 (18 worldwide citation)

In a packet communication network in which a plurality of subscriber's lines are connected with a packet switching unit via a multiplexer and each of terminal units declares the packet rate on call request, a packet rate monitoring circuit is provided between the packet switching unit and the multip ...

Hiroto Uno, Hiroyuki Fujitani, Nobuhiko Ido, Kazuhiko Haru: ATM switching network for setting plural communication channels among subscribers, and ATM switching apparatus used in ATM switching network. Hitachi, Antonelli Terry Stout & Kraus, July 4, 2000: US06084854 (1 worldwide citation)

In an ATM switching network, a limitation of traffic in an ATM switching apparatus is relaxed. In an ATM switching network capable of allocating a plurality of communication channels to a terminal unit of one subscriber, when the terminal of this subscriber requests setting of the plural communicati ...