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Publication of NL6605243ApublicationCriticalpatent/NL6605243A/xx
H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
H04N3/237—Distortion correction, e.g. for pincushion distortion correction, S-correction using passive elements, e.g. diodes