发明名称 |
Light receiving device and light receiving method |
摘要 |
A light receiving device includes: a converter digitalizing an analog signal with a given sampling clock frequency, the analog signal being obtained through a photoelectric conversion of a received optical signal; a plurality of fixed distortion compensators compensating an output signal of the converter for waveform distortion with a fixed compensation amount that is different from each other; a plurality of phase shift detector circuits detecting a sampling phase shift from an output signal of the plurality of the fixed distortion compensators; a phase-adjusting-amount determiner determining a sampling phase adjusting amount with use of an output signal of the plurality of the phase shift detector circuits; and a phase adjusting circuit reducing a phase difference between the sampling clock frequency and the received optical signal based on a determination result of the phase-adjusting-amount determiner. |
申请公布号 |
EP2343841(A1) |
申请公布日期 |
2011.07.13 |
申请号 |
EP20100197368 |
申请日期 |
2010.12.30 |
申请人 |
FUJITSU LIMITED |
发明人 |
NAKASHIMA, HISAO;HOSHIDA, TAKESHI |
分类号 |
H04B10/2507;H04B10/61;H04B3/04;H04B10/2513;H04B10/516;H04B10/69 |
主分类号 |
H04B10/2507 |
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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