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
H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
H04N3/34—Elemental scanning area oscillated rapidly in direction transverse to main scanning direction
Procede de production d'un signal numerique periodique a partir d'un autre signal numerique periodique, ces signaux etant synchronises avec des impulsions de reference, et dispositif de mise en oeuvre