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EP0111157A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Transmission method, especially for recording and reproducing television signals

Assignee: Deutsche Thomson Brandt GmbH
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Filing: 1983-11-05
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Granted: —
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Expires: 2003-11-05
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Abstract

Abstract Translated from German Verfahren zur Aufzeichnung und Weidegabe von Farbfernsehsignalen in Timeptex. In das aufzuzeichnende Signal wird zusätzlich ein zur Synchronisation dienender Träger eingekoppelt, dessen Frequenz halbzeilenfreuquent symmetrisch zu einer Mittenfrequenz umgeschaltet wird. Die Frequenz und die Amplitude des zusätzlich eingekoppelten Trägers ist so gewählt, daß eine Beeinträchtigung der Leuchtdichte- und Farbinformation vermieden wird. Process for recording and grazing color television signals in timeptex. In addition, a carrier used for synchronization is coupled into the signal to be recorded, the frequency of which is switched symmetrically to a center frequency at half-line frequency. The frequency and the amplitude of the additionally coupled-in carrier is chosen in such a way that impairment of the luminance and color information is avoided.

Inventors

  • 👤 Erich Geiger
  • 👤 Heinz Meyer

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-26 09:06
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/81; H04N9/87; H04N9/88

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