Title:
光中継システム
Document Type and Number:
Japanese Patent JP5213911
Kind Code:
B2
Abstract:
Provided is an optical relay system (10) which is capable of suppressing wasteful power consumption of an entire system to a low level. The optical relay system (10) includes a plurality of relay devices (30) and a network control device (20). The network control device (20) causes an optical signal to be regenerated by a regenerative repeater (35) within the relay device (30) existing at an upstream of the relay device (30) reporting that the optical signal has deteriorated by a degree exceeding a predetermined level. Further, the network control device (20) causes the regenerative repeater (35) to stop regenerating the signal in a case where deterioration of the signal remains within an allowable range even when the regenerative repeater (35) stops regenerating the signal.
Inventors:
Takuya Iwasawa
Kenta Noda
Takayuki Suzuki
Kenta Noda
Takayuki Suzuki
Application Number:
JP2010130893A
Publication Date:
June 19, 2013
Filing Date:
June 08, 2010
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
H04Q3/52; H04B10/07; H04B10/27; H04B10/29; H04J14/00; H04J14/02; H04L12/24; H04M7/00
Domestic Patent References:
| JP2010103781A | ||||
| JP2003249903A | ||||
| JP2003234823A |
Attorney, Agent or Firm:
Shoyo domestic and overseas patent office