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EP0054492A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Device for displaying information in an image

Assignee: ENTREPRISE GENERALE DE TELECOMMUNICATIONS
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Filing: 1981-12-11
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Granted: —
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Expires: 2001-12-11
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Abstract

Abstract A device for displaying information in a graphical representation comprises a projector (30) making it possible to present on a screen (14) an image of a figure, for example a diagram, recorded on a carrier film (44). A liquid crystal display matrix (24) is inserted between the projector and the screen (14) and preferably side by side with the latter. Signals for controlling the matrix make it possible to show up a mark (92) in the matrix whose umbra (94) on the screen (14) appears superimposed on the projected figure. The position of this mark relative to the said figure and/or its shape or aspect correspond to information which it is desired to display. This information may vary in time under the control of the display signals. Images of several diagrams may be recorded on the film (44). <IMAGE>

Inventors

  • 👤 Daniel Pelletier
  • 👤 Gérard Faber

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 01:59
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60; G03B21/62

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3581002A Cited
FR2164225A5 Cited
GB1447111A Cited

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