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EP0424654A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Device for generating a recognition signal for the image aspect ratio of a video signal

Assignee: Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
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Filing: 1990-09-12
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Granted: —
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Expires: 2010-09-12
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Abstract

Abstract Translated from German Nach der Erfindung wird mittels einer Eintastschaltung (3) in eine Kennsignalzeile der vertikalen Austastlücke eines Videosignals ein Kennsignal für das Bildseitenverhältnis des Videosignals eingetastet. Das Kennsignal besteht aus einer zeitlich aufeinanderfolgenden Übertragung des Schwarzwertes und des Weißwertes bzw. umgekehrt. According to the invention, a characteristic signal for the aspect ratio of the video signal is keyed into a characteristic signal line of the vertical blanking interval of a video signal by means of a key-in circuit (3). The identification signal consists of a chronologically successive transmission of the black value and the white value or vice versa.

Inventors

  • 👤 Max Grundig E.M.V. Hegendörfer
  • 👤 Konrad Grundig E.M.V. Maul

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 15:56
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/015; H04N7/08; H04N7/083; H04N7/087

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