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Publication of DE572140CpublicationCriticalpatent/DE572140C/de
H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
H04N3/04—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving aperture also apertures covered by lenses
Vorrichtung zur Kontrolle und Gewaehrleistung des Gleichphasenlaufs von zwei oder mehreren durch Drehstrom-Synchronmotoren angetriebenen Apparaten, insbesondere von Geraeten fuer Bild- und Tonaufnahme und -wiedergabe
Elektrischer Telegraph mit um eine gemeinsame Achse drehbaren Scheiben, Trommeln o. dgl., die fuer die Bildung der zu uebermittelnden Kommandos auf ihrem Umfange Zeichen (Worte, Zahlen o. dgl.) aufweisen