发明名称 |
Optical signal receiver, optical signal monitoring unit, and optical signal monitoring method |
摘要 |
An optical signal receiver is provided which is capable of making an optical signal receiver come into common and shared use even when a plurality of transmission methods is to be performed and of constructing a simplified optical transmission system. In a performance monitoring circuit, a switching control section transmits a connecting control signal to make a switching section operate so that the switching section selects a monitoring section to be connected based on bit-rate information corresponding to information about a transmission method type fed from a frequency detecting circuit and the selected monitoring section is connected to a clock/data regenerating circuit. The monitoring section extracts alarm information from a data signal fed from the clock/data regenerating circuit and transfers the alarm information to the selection connecting section. When the switching control section receives alarm information, the alarm information is transferred to devices mounted on a downstream side.
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申请公布号 |
US2006216041(A1) |
申请公布日期 |
2006.09.28 |
申请号 |
US20060377412 |
申请日期 |
2006.03.17 |
申请人 |
NEC CORPORATION |
发明人 |
HOTTA ATSUYA;ISHIGURO MAKOTO |
分类号 |
H04B10/06 |
主分类号 |
H04B10/06 |
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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