发明名称 |
Apparatus for reducing impulse noise in high-frequency digital receivers |
摘要 |
A high-frequency radio signal receiving apparatus for digital communication includes a receiving antenna for receiving a high-frequency radio wave, a frequency converter for converting a signal supplied from the receiving antenna through a wide-band bandpass filter into a signal of an intermediate frequency band, an impulsive noise detecting unit for detecting impulsive noise on the basis of a signal outputted from the frequency converter. The apparatus further includes an impulsive noise correcting unit for correcting the signal outputted from the frequency converter in dependence on a signal outputted from the impulsive noise detecting unit, and a demodulating unit for demodulating a signal outputted from the impulsive noise correcting unit and supplied by way of a narrow-band bandpass filter.
|
申请公布号 |
US6122332(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19970796739 |
申请日期 |
1997.02.06 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
OGATA, YOSHIYUKI;HARUYAMA, HIROAKI |
分类号 |
H04L27/14;H03G3/34;H04B1/10;(IPC1-7):H04B1/10;H03K5/08;H04N5/21 |
主分类号 |
H04L27/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|