| 摘要 |
<p>PROBLEM TO BE SOLVED: To shield or attenuate the electric field harmful wave components which are generated due to the clock oscillation and are leaked to the outside of a CRT. SOLUTION: This device is composed of a transformer 100 which is connected with the horizontal output circuit 10 of a CRT 130 and generates the opposite phase pulse of the frequency band which is the same as that of a horizontal output pulse, an opposite pulse sensor 120 transmitting the opposite pulse to the surrounding of the CRT 130 and a shield wire 110 which detects the opposite pulse from the transformer 100, is grounded at the one end and transmits the opposite pulse to the opposite pulse sensor 120. Electric field harmful components to be leaked to the outside of the CRT 130 can be effectively interrupted without using a special filter and a special coating processing.</p> |
