Deflection distortion correcting circuit

Details Deflection distortion correcting circuit Deflection distortion correcting circuit

1984-04-18

1985-02-26

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2956

Patent

active

045019967

ABSTRACT:
A deflection distortion correcting circuit for CRT display with interlaced scanning is disclosed, which correct concurrently both linearity of vertical deflection and pairing of horizontal interlaced scanning lines which is caused by variation in anode voltage. This can be achieved simply and easily by combining an adder with a conventional cubic curve linearity correction circuit to introduce a pairing correcting component related to the variation in anode voltage into the cubic curve linearity correction.

REFERENCES:
patent: 3713001 (1973-01-01), Waehner et al.
patent: 3740611 (1973-06-01), Slavik
patent: 3825796 (1974-07-01), Bello

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