发明名称 |
CATV system and automatic noise controller |
摘要 |
The present invention relates to a CATV circuit with an automatic noise controller and a CATV system using the CATV circuit. The CATV circuit is used for automatically reducing upstream noises occurred in a CATV circuit for bidirectional communications between a control center and a home terminal. A variable attenuation method is applied to the CATV circuit, and a noise level measurement method is applied to measure the upstream noise level and control the attenuation rate according to the measured noise level.
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申请公布号 |
US7757262(B2) |
申请公布日期 |
2010.07.13 |
申请号 |
US20070797390 |
申请日期 |
2007.05.03 |
申请人 |
HWA LIN ELECTRONIC (SHENZHEN) CO., LTD. |
发明人 |
MITSUSE TAKUZO;KUWAHARA HIROFUMI |
分类号 |
H04N7/173 |
主分类号 |
H04N7/173 |
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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