发明名称 |
Method and apparatus for reducing the intensity of magnetic field emissions from video display units |
摘要 |
Method and apparatus for the reduction of the intensity of magnetic field emissions from video display units (VDU) in the vicinity of the user comprising a wire coil shaped to mimic the shape of conventional VDU deflection coils draped over a VDU to produce a cancelling magnetic field synchronous with the magnetic field produced by the unit's deflection coil. The cancellation coil is driven by a signature sensor disposed forward of the deflection coil that senses the characteristics of the magnetic field produced by the deflection coil. The gain of the cancellation coil is adjusted to maximize the cancellation coil's cancellation effect in the vicinity of the VDU user. |
申请公布号 |
AU7873794(A) |
申请公布日期 |
1996.03.29 |
申请号 |
AU19940078737 |
申请日期 |
1994.09.14 |
申请人 |
MTI, INC. |
发明人 |
IVAN H DARIUS |
分类号 |
G01R33/025;H01J29/00;H01J29/76;H04N3/16;H04N5/64 |
主分类号 |
G01R33/025 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|