Color CRT displaying correction circuit

Details Color CRT displaying correction circuit Color CRT displaying correction circuit

1988-08-29

1990-04-10

Tarcza, Thomas H.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315382, 315386, H01J 2952, H01J 2958

Patent

active

049163655

ABSTRACT:
A color CRT includes a screen to effect display by being illuminated by electron beams and at least one grid for controlling a character of the display on the screen. A horizontal deflection coil is provided on the color CRT for horizontal deflection of the electron beams. A vertical deflection coil is provided on the color CRT for vertical deflection of the electron beams. A horizontal deflection circuit supplies a horizontal deflection current to the horizontal deflection coil. A vertical deflection circuit supplies a vertical deflection current to the vertical deflection coil. A horizontal parabolic waveform voltage generator generates a horizontal parabolic waveform voltage with the level thereof increasing for positions from the center to the edges of the screen according to the horizontal deflection current in synchronism to the horizontal deflection. A vertical parabolic waveform voltage generator generates a vertical parabolic waveform voltage with the level thereof increasing for positions from the center to the edges of the screen according to the horizontal deflection current in synchronism to the vertical deflection. A grid modulator supplies the horizontal and vertical parabolic waveform voltages in superimposition on a bias voltage to the grid.

REFERENCES:
patent: 4319163 (1982-03-01), Chen

Affiliated with

Also associated with

Rating

Color CRT displaying correction circuit 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 displaying correction circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color CRT displaying correction circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2301023