FR2710440A1 - Device preventing the display of certain colours - Google Patents

Device preventing the display of certain colours Download PDF

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Publication number
FR2710440A1
FR2710440A1 FR9311241A FR9311241A FR2710440A1 FR 2710440 A1 FR2710440 A1 FR 2710440A1 FR 9311241 A FR9311241 A FR 9311241A FR 9311241 A FR9311241 A FR 9311241A FR 2710440 A1 FR2710440 A1 FR 2710440A1
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FR
France
Prior art keywords
display
color
present
prohibited
electronics
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Granted
Application number
FR9311241A
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French (fr)
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FR2710440B1 (en
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR9311241A priority Critical patent/FR2710440B1/en
Publication of FR2710440A1 publication Critical patent/FR2710440A1/en
Application granted granted Critical
Publication of FR2710440B1 publication Critical patent/FR2710440B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
    • G09G1/28—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using colour tubes
    • G09G1/285—Interfacing with colour displays, e.g. TV receiver

Abstract

The invention relates to a system preventing the display of one prohibited colour alone. The device includes logic forcing display of another colour if a prohibited colour is the only one present. The device according to the invention is particularly intended for the display systems, especially those used for informing passengers in the rail transport system.

Description

La présente invention concerne un dispositif pour empêcher l'affichage de certaines couleurs. The present invention relates to a device for preventing the display of certain colors.

Pour des raisons de sécurité, l'emploi d'une ou plusieurs couleurs sur un écran d'affichage peut être proscrit. Un problème de câblage, ou un défaut du système de commande peut engendrer l'affichage d'une couleur interdite. For security reasons, the use of one or more colors on a display screen may be prohibited. A wiring problem, or a fault in the control system can cause the display of an illegal color.

Le dispositif, selon l'invention, permet de remédier à cet inconvénient. I1 comporte en effet, selon une première caractéristique, une logique forçant l'affichage d'une autre couleur si une couleur interdite est seule présente. The device according to the invention overcomes this drawback. I1 indeed has, according to a first characteristic, a logic forcing the display of another color if only one prohibited color is present.

Selon des modes particuliers de réalisations
- Le système peut être intégré à l'électronique du système d'affichage ou au système de commande de l'affichage. I1 peut être prévu un dispositif permettant d'activer ou non le processus.According to particular embodiments
- The system can be integrated into the display system electronics or the display control system. I1 can be provided a device allowing to activate or not the process.

- Le système est intégré dans un boîtier qui se branche entre le dispositif de commande et le système d'affichage. - The system is integrated in a box which connects between the control device and the display system.

- Le système peut forcer la couleur d'écriture et de fond si une seule couleur est présente en entrée. - The system can force the writing and background color if only one color is present at the input.

Les dessin annexés illustrent l'invention:
- La figure 1 représente un principe de fonctionnement.The accompanying drawings illustrate the invention:
- Figure 1 shows an operating principle.

- La figure 2 symbolise le système dans la chaîne de traitement de l'affichage. - Figure 2 symbolizes the system in the display processing chain.

En référence à ces dessins les points 1, 2 et 3 sont respectivement les entrées rouge, verte et bleu du système. With reference to these drawings, points 1, 2 and 3 are the red, green and blue inputs of the system respectively.

Les éléments 4, 5 et 6 sont des diodes utilisées pour la protection du dispositif de commande de l'affichage. La diode 7 permet de forcer l'affichage du vert si le rouge est présent. La porte inverseuse 8 et la porte logique 9 forcent l'affichage du bleu si le vert est présent et pas le rouge. La diode 10 est une protection. Les points 11, 12 et 13 sont les sorties respectivement rouge, verte et bleu. Dans cet exemple le rouge est obligatoirement associé au vert et si le vert est seul présent, il est associé au bleu. I1 ntest donc pas possible d'avoir soit le rouge, soit le vert affiché seul. Elements 4, 5 and 6 are diodes used to protect the display control device. LED 7 allows the display of green to be forced if red is present. The reversing gate 8 and the logic gate 9 force the display of blue if green is present and not red. Diode 10 is a protection. Points 11, 12 and 13 are the red, green and blue outputs respectively. In this example, red is necessarily associated with green and if only green is present, it is associated with blue. It is therefore not possible to have either red or green displayed alone.

Dans la figure 2 l'élément 20 est le dispositif de commande de l'affichage qui normalement est connecté au système d'affichage 22. Le système de filtre des couleurs 21 est ici extérieur à l'électronique de l'afficheur
Le dispositif selon l'invention est particulièrement destiné aux systèmes d'affichage utilisés notamment pour l'information des voyageurs dans le transport ferroviaire. In Figure 2 the element 20 is the display control device which is normally connected to the display system 22. The color filter system 21 is here external to the electronics of the display
The device according to the invention is particularly intended for display systems used in particular for informing travelers in rail transport.

Claims (7)

REVENDICATIONS 1) Dispositif pour empêcher l'affichage de certaines couleurs, caractérisé par une logique forçant l'affichage d'une autre couleur si une couleur proscrite est seule présente. 1) Device for preventing the display of certain colors, characterized by a logic forcing the display of another color if only one proscribed color is present. 2) Dispositif défini selon la revendication 1 caractérisé en ce qu'il peut y avoir plusieurs couleurs proscrites. 2) Device defined according to claim 1 characterized in that there may be several prohibited colors. 3) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le système peut forcer une couleur d'écriture et une couleur de fond si une seule couleur est présente à l'entrée. 3) Device according to any one of the preceding claims, characterized in that the system can force a writing color and a background color if only one color is present at the entry. 4) Dispositif selon l'une quelconque des revendications 1, 2 ou 3 caractérisé en ce que le système est intégré à l'électronique du système d'affichage (22). 4) Device according to any one of claims 1, 2 or 3 characterized in that the system is integrated with the electronics of the display system (22). 5) Dispositif selon l'une quelconque des revendications 1, 2 ou 3 caractérisé en ce que le système est intégré à l'électronique de commande (20). 5) Device according to any one of claims 1, 2 or 3 characterized in that the system is integrated with the control electronics (20). 6) Dispositif selon l'une quelconque des revendications 1, 2 ou 3 caractérisé en ce que le système constitue un élément en lui seul, il est connecté entre le système de commande de l'affichage (20) et l'électronique de l'afficheur (22). 6) Device according to any one of claims 1, 2 or 3 characterized in that the system constitutes an element in itself, it is connected between the display control system (20) and the electronics of the display (22). 7) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce qu'un dispositif est présent afin de mettre en service ou non ce système de filtre.  7) Device according to any one of the preceding claims, characterized in that a device is present in order to activate or not this filter system.
FR9311241A 1993-09-21 1993-09-21 Device preventing the display of certain colors. Expired - Fee Related FR2710440B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9311241A FR2710440B1 (en) 1993-09-21 1993-09-21 Device preventing the display of certain colors.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9311241A FR2710440B1 (en) 1993-09-21 1993-09-21 Device preventing the display of certain colors.

Publications (2)

Publication Number Publication Date
FR2710440A1 true FR2710440A1 (en) 1995-03-31
FR2710440B1 FR2710440B1 (en) 1995-10-20

Family

ID=9451080

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9311241A Expired - Fee Related FR2710440B1 (en) 1993-09-21 1993-09-21 Device preventing the display of certain colors.

Country Status (1)

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FR (1) FR2710440B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259981A2 (en) * 1986-08-13 1988-03-16 Canon Kabushiki Kaisha Colour image processing method and apparatus
EP0395365A2 (en) * 1989-04-28 1990-10-31 Sony Corporation Clear blue circuit for use with computer monitors and the like
GB2243515A (en) * 1990-04-11 1991-10-30 Rank Cintel Ltd Digital video signal processing using lookup tables
US5105267A (en) * 1988-09-26 1992-04-14 Ricoh Company, Ltd. Color conversion apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259981A2 (en) * 1986-08-13 1988-03-16 Canon Kabushiki Kaisha Colour image processing method and apparatus
US5105267A (en) * 1988-09-26 1992-04-14 Ricoh Company, Ltd. Color conversion apparatus
EP0395365A2 (en) * 1989-04-28 1990-10-31 Sony Corporation Clear blue circuit for use with computer monitors and the like
GB2243515A (en) * 1990-04-11 1991-10-30 Rank Cintel Ltd Digital video signal processing using lookup tables

Also Published As

Publication number Publication date
FR2710440B1 (en) 1995-10-20

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