发明名称 |
Multi-carrier communication apparatus, power line communication circuit, and multi-carrier communication method |
摘要 |
Provided is a multi-carrier communication apparatus, power line communication circuit, and multi-carrier communication method capable of decreasing omission of carrier detection even when a plurality of communication apparatuses are simultaneously transmitting signals at the state of time discord. Digital signals transmitted from a digital signal-processing unit 1 are converted into analog signals by an analog circuit unit 2 and then transmitted from a pair of lines 61 and 62 via a communication transformer 3. The digital signal-processing unit 1 has a frequency carrier detecting unit 10 which detects the existence of a carrier on the basis of a frequency characteristic of the received signal and the frequency carrier detecting unit 10 detects the carrier by taking correlation between sub-carriers adjacent to each other at every other interval.
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申请公布号 |
US7912139(B2) |
申请公布日期 |
2011.03.22 |
申请号 |
US20070696011 |
申请日期 |
2007.04.03 |
申请人 |
PANASONIC CORPORATION |
发明人 |
KODAMA NOBUTAKA;KOGA HISAO;OISHI MUTSUHIKO;YUKIZANE RYOTA;ICHIHARA FUMIO |
分类号 |
H04L27/28 |
主分类号 |
H04L27/28 |
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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