Patent EP0282369A1 successfully refreshed from Google Patents.
EP0282369A1
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EP
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Process for the automatic measuring of the convergence and for the determination of the necessary corrections of the deviators of a three-colour CRT, and apparatus for carrying it out
Assignee: Videocolor SA
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Filing: 1988-02-09
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Granted: —
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Expires: 2008-02-09
Abstract
Abstract In order to automatically determine the characteristics of the corrections to be made to three-colour CRT deviators, the coordinates are measured (7,11) of the middle parts of the R and B bars of a cross-bar test pattern, at "strategic" locations, the deviator being in an "average" position on the tube, the values obtained are normalised by calculation (12) in order to virtually reestablish the ideal position of the deviator, the convergence errors due to this deviator are calculated (13), and the pointwise (15) or global (16,17) corrections to be applied to it are deduced therefrom. <IMAGE>
Inventors
- 👤 Jean-Pierre Fourche
- 👤 Guy Legrand
- 👤 Michel Faivre
- 👤 Olivier Berthaut
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 21:10
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/42; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/28
Claims Analysis
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References Cited (Backward Citations)
EP0049123A2
Cited
EP0120767A1
Cited
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