| 发明名称 |
Optical FSK homodyne receiver. |
| 摘要 |
In an optical homodyne receiver connected to a 90 DEG hybrid (H), the signal path is divided into two branches and a delay element (TG) is inserted in one branch. After multiplication (BM) of the signals of both branches, the useful signal is obtained, along with additional frequency components which are to be filtered out. <IMAGE>
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| 申请公布号 |
EP0298484(A1) |
申请公布日期 |
1989.01.11 |
| 申请号 |
EP19880110884 |
申请日期 |
1988.07.07 |
| 申请人 |
SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUNCHEN |
发明人 |
SCHNEIDER, ROBERT, DIPL.-ING. |
| 分类号 |
H04B10/61;H04B10/63;H04L27/152;(IPC1-7):H04B9/00;H04L27/14 |
主分类号 |
H04B10/61 |
| 代理机构 |
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