JP2012161054A - 通信装置 - Google Patents
通信装置 Download PDFInfo
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- JP2012161054A JP2012161054A JP2011021351A JP2011021351A JP2012161054A JP 2012161054 A JP2012161054 A JP 2012161054A JP 2011021351 A JP2011021351 A JP 2011021351A JP 2011021351 A JP2011021351 A JP 2011021351A JP 2012161054 A JP2012161054 A JP 2012161054A
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- signal
- frequency
- harmonic noise
- communication
- power supply
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
【解決手段】 電源高調波雑音Nの周波数は、50Hzの商用周波数f0の整数倍になる。このため、送信信号を搬送するサブキャリアの周波数fSを、50Hzの整数倍になる電源高調波雑音周波数間の値、例えば、25Hzおよびその奇数倍になる値に設定する。このように信号周波数(サブキャリア周波数)と電源高調波雑音の周波数とが直交関係に設定されて、信号通信が行われることで、通信する信号を電源高調波雑音から容易に分離して取り出すことができ、電源高調波雑音を極めて精度良く除去して復調することが可能となる。
【選択図】 図2
Description
2…IDFT(Inverse Discrete Fourier Transform)変換器
3、17…並直列変換器
4…D−A変換器
5、13…LPF(低域通過フィルタ)
6、12…乗算器
7、11…BPF(帯域通過フィルタ)
14…A−D変換器
16…DFT(Discrete Fourier Transform)変換器
Claims (2)
- 通信する信号の信号周波数を電源高調波雑音の周波数と直交関係になる値に設定して、信号通信を行うことを特徴とする通信装置。
- 前記信号は、電力線によって供給される交流電源に重畳されて電力線搬送されることを特徴とする請求項1に記載の通信装置。
Priority Applications (1)
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JP2011021351A JP5637885B2 (ja) | 2011-02-03 | 2011-02-03 | 通信装置 |
Applications Claiming Priority (1)
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JP2011021351A JP5637885B2 (ja) | 2011-02-03 | 2011-02-03 | 通信装置 |
Publications (2)
Publication Number | Publication Date |
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JP2012161054A true JP2012161054A (ja) | 2012-08-23 |
JP5637885B2 JP5637885B2 (ja) | 2014-12-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2011021351A Active JP5637885B2 (ja) | 2011-02-03 | 2011-02-03 | 通信装置 |
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JP (1) | JP5637885B2 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53142114A (en) * | 1977-05-17 | 1978-12-11 | Landis & Gyr Ag | Method of and device for transmitting and receiving signal via ac distribution network lines |
JPS6139635A (ja) * | 1984-07-31 | 1986-02-25 | Osaki Denki Kogyo Kk | 高調波雑音除去方法 |
JPS6214508A (ja) * | 1985-07-11 | 1987-01-23 | Nishimu Denshi Kogyo Kk | 商用電力周波数高調波除去フイルタ |
JPH0563614A (ja) * | 1991-09-02 | 1993-03-12 | Nissin Electric Co Ltd | 配電線搬送装置 |
JP2000252887A (ja) * | 1999-02-26 | 2000-09-14 | Tohoku Electric Power Co Inc | 広帯域高調波除去フィルタ |
JP2009296641A (ja) * | 2003-07-16 | 2009-12-17 | Sony Internatl Europ Gmbh | 通信方法、及び電力線通信システム |
-
2011
- 2011-02-03 JP JP2011021351A patent/JP5637885B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53142114A (en) * | 1977-05-17 | 1978-12-11 | Landis & Gyr Ag | Method of and device for transmitting and receiving signal via ac distribution network lines |
US4307380A (en) * | 1977-05-17 | 1981-12-22 | Lgz Landis & Gyr Zug Ag | Transmitting signals over alternating current power networks |
JPS6139635A (ja) * | 1984-07-31 | 1986-02-25 | Osaki Denki Kogyo Kk | 高調波雑音除去方法 |
JPS6214508A (ja) * | 1985-07-11 | 1987-01-23 | Nishimu Denshi Kogyo Kk | 商用電力周波数高調波除去フイルタ |
JPH0563614A (ja) * | 1991-09-02 | 1993-03-12 | Nissin Electric Co Ltd | 配電線搬送装置 |
JP2000252887A (ja) * | 1999-02-26 | 2000-09-14 | Tohoku Electric Power Co Inc | 広帯域高調波除去フィルタ |
JP2009296641A (ja) * | 2003-07-16 | 2009-12-17 | Sony Internatl Europ Gmbh | 通信方法、及び電力線通信システム |
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JP5637885B2 (ja) | 2014-12-10 |
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