Color CRT display apparatus

Details Color CRT display apparatus Color CRT display apparatus

1994-04-20

1996-01-30

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315 8, H01J 2956

Patent

active

054882702

ABSTRACT:
A color CRT display apparatus in which the polarity and the strength of the external magnetic field in the tube direction of a CRT are detected by a magnet detecting element, and a current corresponding to the strength of the external magnetic field is supplied to a compensating coil which is wound around a funnel portion between a display panel and a deflection yoke and at a place where a purity rotation and a raster rotation by said external magnetic field in said tube direction are simultaneously compensated, thereby both the purity rotation and the raster rotation can be automatically compensated in an optimum state.

REFERENCES:
patent: 4882521 (1989-11-01), Arimoto
patent: 4899082 (1990-02-01), Sands et al.
patent: 4992697 (1991-02-01), Penninga et al.
patent: 4996461 (1991-02-01), Bentley
patent: 5049847 (1991-09-01), Okuyama et al.
patent: 5066891 (1991-11-01), Harrold et al.
patent: 5168195 (1992-12-01), Breidigan et al.
patent: 5170094 (1992-12-01), Giannantonio et al.
patent: 5189348 (1993-02-01), Yokota et al.

Affiliated with

Also associated with

Rating

Color CRT display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-158210