发明名称 |
Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission system |
摘要 |
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.
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申请公布号 |
US2004037571(A1) |
申请公布日期 |
2004.02.26 |
申请号 |
US20030642669 |
申请日期 |
2003.08.19 |
申请人 |
IIDA MASANORI;ADACHI HISASHI;ASAKURA HIROYUKI |
发明人 |
IIDA MASANORI;ADACHI HISASHI;ASAKURA HIROYUKI |
分类号 |
H03D9/00;H03L7/18;H04B10/145;H04B10/155;H04B10/50;H04B10/516;H04B10/548;(IPC1-7):H04B10/04 |
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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