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EP0271055A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Video recorder with a second video signal track

Assignee: Nokia Deutschland GmbH
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Filing: 1987-12-08
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Granted: —
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Expires: 2007-12-08
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Abstract

Abstract Translated from German Am Eingang des Videosignalweges (31) einer Bilc-in-Bild-Einblendschaltung (23) eines Videorecorders (22) ist anstelle eines Farbdifferenzdecoders ein Farbdecoder (24) angeordnet, der ein von der Übertragungsnorm der Videosignale unabhängiges RGB-Ausgangssignal erzeugt. Dieses RGB-Signal wird digitalisiert und mittels eines Demultiplexers (39) so komprimiert, daß in einem Bild-in-Bild-Speicher (41) die für ein kleines Videobild (40) in einem über einen ersten Videosignalweg (29) übertragenen großen Videobild (30) erforderlichen Signale zeilenweise gespeichert sind. Diese Signale werden nach einer Rückwandlung in analoge Form einem gesteuerten RGB-Eingang (44) des Fernsehempfängers (26) zur Darstellung auf dem Bildschirm (25) zugeführt. At the input of the video signal path (31) of a bilc-in-picture fade-in circuit (23) of a video recorder (22), instead of a color difference decoder, a color decoder (24) is arranged, which generates an RGB output signal that is independent of the transmission standard of the video signals. This RGB signal is digitized and compressed by means of a demultiplexer (39) in such a way that in a picture-in-picture memory (41) the data for a small video picture (40) in a large video picture () transmitted via a first video signal path (29) 30) required signals are stored line by line. After a conversion back into analog form, these signals are fed to a controlled RGB input (44) of the television receiver (26) for display on the screen (25).

Inventors

  • 👤 Helmut Mitschke

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 03:19
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/765; H04N5/775

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