发明名称 |
FM optical transmission system |
摘要 |
<p>Plural subcarrier-multiplexed AM signals 30 are input and narrow-band-FM-modulated by a voltage controlled oscillator 4 including the fundamental carrier wave and higher-order harmonics as the output, and the FM carrier wave component of the higher-order harmonics of the fundamental carrier wave is selectively taken out by a band-rejection filter 5, shifted to the lower frequency side by a frequency converter 7, converted into an optical signal by an electric/optic converter 3 and transmitted. <IMAGE></p> |
申请公布号 |
EP1041749(A1) |
申请公布日期 |
2000.10.04 |
申请号 |
EP20000106313 |
申请日期 |
2000.03.23 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
IIDA, MASANORI;ADACHI, HISASHI;ASAKURA, HIROYUKI |
分类号 |
H03D9/00;H03L7/18;H04B10/50;H04B10/516;H04B10/548;(IPC1-7):H04B10/155 |
主分类号 |
H03D9/00 |
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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