| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a device and a method for reducing EMI discharged from a computer or any other electronic device. SOLUTION: For example, a clock or any other synchronizing signal is sent from a transmission source to a destination as a double side band suppress carrier wave (DSB-SC) signal. At the transmission source, the amplitude of the clock or other synchronizing signal is modulated by using a wide band low frequency envelope signal. The modulated signal is the DSB-SC signal and this is next sent to the destination beyond a PC board trace. At the destination, the DSB-SC signal is demodulated and the clock or other synchronizing signal is reproduced. At both the transmission source and the destination, the envelope signal can be individually generated from a common key as well.</p> |
