External magnetic field correction device and CRT display device

Details External magnetic field correction device and CRT display device External magnetic field correction device and CRT display device

1998-02-20

1999-12-07

Wong, Don

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315 8, 315387, 315388, H01J 2956

Patent

active

059989432

ABSTRACT:
An external magnetic field correction device capable of preventing malfunctions of the external magnetic field correction device due to operation of a degaussing circuit by judging that an abnormality has occurred when an output of an external magnetic field detector is not less than a predetermined value and interrupting offset adjustment process accordingly, and that is capable of limiting irregularities of offset current in operational current of the magnetic field correction device to predetermined value or less by adjusting an offset value as to make correction current to be supplied to an external magnetic field correction coil when an external magnetic field around a CRT is zero to a regular value or less.

REFERENCES:
patent: 5021720 (1991-06-01), Aimura
patent: 5583401 (1996-12-01), Inoue et al.
patent: 5828189 (1998-10-01), Strzelichowski et al.

Affiliated with

Also associated with

Rating

External magnetic field correction device and CRT display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with External magnetic field correction device and CRT display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External magnetic field correction device and CRT display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-827857