发明名称 |
SYSTEMS FOR TRANSMITTING INFORMATION IN AN ALTERNATING CURRENT ELECTRICITY SUPPLY SYSTEM |
摘要 |
<p>A method of transmitting information in an alternating current electricity supply system by alteration of the supply voltage waveform during a corresponding time period in selected cycles of the supply voltage wherein each said alteration is effected by drawing from the supply system during a period including a voltage zero a current of sufficient magnitude to reduce the supply voltage during that said period.</p> |
申请公布号 |
CA1054946(A) |
申请公布日期 |
1979.05.22 |
申请号 |
CA19750231716 |
申请日期 |
1975.07.17 |
申请人 |
GENERAL ELECTRIC COMPANY LIMITED (THE) |
发明人 |
PEREZ-CAVERO, LEONARDO;CROSS, MICHAEL W. A.;FIELDING, GEOFFREY;GRAY, FREDERICK M. |
分类号 |
H02J13/00;H04B3/54;H05B37/02;(IPC1-7):04B3/54 |
主分类号 |
H02J13/00 |
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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