发明名称 |
Noise reducer and noise reduction method with expanded gate pulses |
摘要 |
<p>A noise reducer generates a gate signal by detecting noise in a demodulated signal, and changes the lengths the gate pulses indicating the presence of noise according to the electric-field strength of a radio signal from which the demodulated signal has been obtained. The demodulated signal is modified during intervals indicated by the gate pulses, to reduce the noise. The amount of change of the gate-pulse lengths is preferably increased as the electric-field strength decreases. Noise can then be removed satisfactorily under even weak electric-field conditions. <IMAGE></p> |
申请公布号 |
EP1128550(A2) |
申请公布日期 |
2001.08.29 |
申请号 |
EP20010301038 |
申请日期 |
2001.02.06 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
TSUJISHITA, MASAHIRO;TAURA, KENICHI;TSUJI, MASAYUKI;ISHIDA, MASAYUKI |
分类号 |
H04B1/10;H03G3/34;(IPC1-7):H03G3/34 |
主分类号 |
H04B1/10 |
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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