Title:
アド/ドロップ(ADD/DROP)マルチプレクサノード
Document Type and Number:
Japanese Patent JP3862280
Kind Code:
B2
Abstract:
PCT No. PCT/SE96/00813 Sec. 371 Date Feb. 10, 1998 Sec. 102(e) Date Feb. 10, 1998 PCT Filed Jun. 20, 1996 PCT Pub. No. WO97/01897 PCT Pub. Date Jan. 16, 1997An add/drop multiplexer node in an optical network comprises an optical channel-selective switch. The switch is operable in bar and cross states and has a first input for the reception of optical multiplexed channels, a second input connected to an output on a line terminal associated with the node for adding channels, a first output, which is bar coupled to the first input and connected to a line terminal input for dropping channels and a second output, which is bar coupled to the second input. A predetermined number of channels to be dropped are selected and the channel-selective switch cross-couples non-selected channels from the first input to the second output.
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Inventors:
Andre Lodge, Paolo
Merli, Stefano
Norbiat, Renato
Testa, Francesco
Merli, Stefano
Norbiat, Renato
Testa, Francesco
Application Number:
JP50434897A
Publication Date:
December 27, 2006
Filing Date:
June 20, 1996
Export Citation:
Assignee:
Telefon Acty Boraget Elm Ericson (Pubble)
International Classes:
H04B10/29; H04J14/00; H04B10/035; H04B10/079; H04B10/2507; H04B10/27; H04B10/275; H04B10/296; H04J3/08; H04J14/02; H04Q3/52; H04Q11/00
Domestic Patent References:
| JP5183564A | ||||
| JP6164613A | ||||
| JP1141424A | ||||
| JP7123072A | ||||
| JP2304421A | ||||
| JP4068930A | ||||
| JP5130034A | ||||
| JP6302881A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Hayashi Zouzo
Kuniaki Shimizu
Hajime Asamura
Hayashi Zouzo
Kuniaki Shimizu