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EP0129648A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Television receiver with text insertion

Assignee: Deutsche Thomson Brandt GmbH
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Filing: 1984-04-01
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Granted: —
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Expires: 2004-04-01
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Abstract

Abstract Translated from German Vertikales Zittern bei Texteinblendungen stört sehr und soll für Btx-, insbesondere Mix- und Box-Betrieb, verhindert werden. Dazu wird bei dieser Wiedergabeart, sobald eine Einblendung eingetastet wird, sowohl die den Hintergrund bildende Fernsehübertragung wie auch die Bildzeichen und/oder Texteinblendung ohne Zeilensprung wiedergegeben. Das läßt sich auch unter Verwendung der allgemein üblichen Steckverbindung zwischen Fernsehgerät und Decoder realisieren. Eine Bildabtrennstufe und eine Synchronimpulsauftaststufe lassen sich im Decoder unterbringen, dessen digitaler Logik in dieser Betriebsart das erforderliche Synchronsignal entnommen wird. Vertical tremors during text overlays are very annoying and should be prevented for Btx, especially mix and box operation. In addition, in this type of display, as soon as an overlay is keyed in, the television transmission forming the background as well as the picture characters and / or text overlay are reproduced without interlacing. This can also be achieved using the standard plug connection between the television set and the decoder. An image separation stage and a sync pulse sampling stage can be accommodated in the decoder, the digital logic of which is used to extract the required synchronization signal in this operating mode.

Inventors

  • 👤 Günter Gleim
  • 👤 Siegfried Quandt

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 07:24
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/272

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Total Claims: 0
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