| 发明名称 |
Door intercom communication system and method of using same |
| 摘要 |
The present invention receives and transmits signal data modulated by a power carrier module through an indoor power line so that a bi-directional transmission of the signal data using the indoor power line is achieve
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| 申请公布号 |
US2006250232(A1) |
申请公布日期 |
2006.11.09 |
| 申请号 |
US20060333336 |
申请日期 |
2006.01.18 |
| 申请人 |
HANSDER ENGINEERING CO., LTD. |
发明人 |
HUANG YUAN-YU |
| 分类号 |
G08B1/08 |
主分类号 |
G08B1/08 |
| 代理机构 |
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| 主权项 |
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