| 摘要 |
A method and device for transmitting non-broadband signals using power lines as media is provided, whereby frequencies of numerous kinds of signals (including sounds, images, data information, etc.) are divided firstly, and then such signals are mixed by applying linear algebra to form a mixed transformed signal that is then coupled to an ordinary power line (such as an AC power line) or any of the transmission media, characterized in that time periods are used for dividing frequencies of signals, such that all frequencies of signals chosen fall into the scope of low bandwidths required and are linearly independent.
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