Raster distortion avoidance arrangement

Details Raster distortion avoidance arrangement Raster distortion avoidance arrangement

1993-06-03

1995-03-28

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315408, H01J 2956

Patent

active

054020441

ABSTRACT:
Organ pipes distortions, caused by parasitic ringing in a horizontal deflection current are suppressed by forming a current pulse in a current injection arrangement. The current pulse is coupled to a junction terminal between a terminal of the horizontal deflection winding where a high retrace pulse voltage is developed and a low voltage terminal of a linearity correction inductance. A high voltage terminal of the linearity correction inductance is coupled to a horizontal output transistor. The current pulse begins prior to the end of retrace and ends during the trace interval. A modulation network is coupled across the linearity correction inductance for providing a low impedance current path to the current pulse.

REFERENCES:
patent: 3962603 (1976-06-01), Van Der Vegt
patent: 4019093 (1977-04-01), Klein
patent: 4238714 (1980-12-01), Sumi
patent: 4612481 (1986-09-01), Storberg
patent: 4707640 (1987-11-01), Onozawa et al.
patent: 5182504 (1993-01-01), Haferl

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