发明名称 |
Wavelength division multiplexing system and its termination |
摘要 |
A computer for controlling a pre-emphasis process is provided at end terminal stations which are the terminal stations of a trunk. When a pre-emphasis process is performed to an optical signal directing from a terminal station to another terminal station, the computer of the terminal station controls the process. First, the terminal station causes another terminal station to transmit the spectrum information of the thus-received optical signal, and receives the information. The terminal station obtains the spectrum information of its own received optical signal. The terminal station arranges data for each transmission source of the received optical signal, and calculates the amount of a pre-emphasis process to be performed at a transmission side. The terminal station transmits pre-emphasis execution instructions to the other terminal stations according to the thus-calculated results. <IMAGE> |
申请公布号 |
EP0959578(B1) |
申请公布日期 |
2007.11.07 |
申请号 |
EP19990101599 |
申请日期 |
1999.01.29 |
申请人 |
FUJITSU LIMITED |
发明人 |
MORIKAWA, HAJIME;HARASAWA, SHIN-ICHIROU |
分类号 |
H04J14/00;H04J14/02;H04B10/00;H04B10/077;H04B10/079;H04B10/2507;H04B10/27;H04B10/29;H04B10/294 |
主分类号 |
H04J14/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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