Device for eliminating low frequency radiation of monitor

Details Device for eliminating low frequency radiation of monitor Device for eliminating low frequency radiation of monitor

1997-02-19

1998-09-29

Pascal, Robert J.

Electric lamp and discharge devices: systems

With electromagnetic wave radiation preventing or shielding...

348819, H01J 2906

Patent

active

058149414

ABSTRACT:
A device for eliminating low frequency radiation of a computer monitor is disclosed, including a pair of first conductive plates disposed on two opposite sides of a cathode ray tube of the monitor to generate a radiation signal thereon that is induced by the low frequency radiation of the monitor, the radiation signal being applied to a circuit which amplifies and inverts the radiation signal to generate an in inverted and amplified output signal, the output signal being applied to a pair of second conductive plates arranged on another two opposite sides of the cathode ray tube to cancel the low frequency radiation of the cathode ray tube.

REFERENCES:
patent: 5066891 (1991-11-01), Harrold et al.
patent: 5151635 (1992-09-01), Cappels
patent: 5534756 (1996-07-01), Beeteson et al.

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