FIELD: TV equipment. SUBSTANCE: line and frame scanning circuits generate line and frame scanning currents for scanning image on luminescent screen of rectangular-planar cathode-ray tube with non- spherical front surface. Distortions from spherical shape causes image distortions of seagull-wing type. Circuit for correction of this distortions is controlled by signals with line and frame frequency respectively for modulation of frame deviation current in period of line deviation within frame scanning interval in order to correct image distortions of seagull-wing type in corresponding line. EFFECT: correction of distortions of seagull-wing type. 7 cl, 9 dwg
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Authors
Dates
1999-02-10—Published
1985-06-10—Filed