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EP0093904A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of limiting the beam current in a TV receiver picture tube

Assignee: Deutsche Thomson Brandt GmbH
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Filing: 1983-04-20
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Granted: —
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Expires: 2003-04-20
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Abstract

Abstract Translated from German Verfahren zur Begrenzung des Strahlstromes in einer Bildröhre. Hierbei werden die für die automatische Weißwerteinstellung während einiger Zeilen eingeblendeten Bezugspegel von einem bestimmten Wert des mittleren Strahlstromes ab erhöht, so daß die Gesamtverstärkungsgrade der einzelnen Verstärkerkanäle gemeinsam im gleichen Verhältnis vermindert werden. Method for limiting the beam current in a picture tube. In this case, the reference levels faded in for a few lines for the automatic white value adjustment are increased from a certain value of the average beam current, so that the overall amplification degrees of the individual amplifier channels are reduced together in the same ratio.

Inventors

  • 👤 Jean-Claude Rufray
  • 👤 Antoine Pery

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 10:48
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64; H04N9/645

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