EP2168116B1 - Display device with magnification function for limited-use password - Google Patents
Display device with magnification function for limited-use password Download PDFInfo
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- EP2168116B1 EP2168116B1 EP08761224.8A EP08761224A EP2168116B1 EP 2168116 B1 EP2168116 B1 EP 2168116B1 EP 08761224 A EP08761224 A EP 08761224A EP 2168116 B1 EP2168116 B1 EP 2168116B1
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- display
- otp
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
- G09G5/24—Generation of individual character patterns
- G09G5/26—Generation of individual character patterns for modifying the character dimensions, e.g. double width, double height
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
- G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals
Definitions
- the invention relates to a password display device or number of single use and / or limited “OTP” (acronym for the expression "one time password”.
- OTP The numbers "OTP" are used in particular operations and / or session authentication / identification of electronic transactions.
- An OTP number is generated using a small format electronic device such as a USB key, a mini smart card reader, a calculator, a personal assistant (PDA), a mobile phone, implementing a mechanism secure calculation that can use in particular a smart card, a PIN code, a random number. This generated number is displayed on a screen of the device for the user.
- PDA personal assistant
- the display of the OTP is currently subject to the constraints of the "CAP (Chip Authentication Program) MASTER CARD" specifications which recommend two display lines of 12 characters minimum on one screen. These lines are each dedicated to a particular function: a line is dedicated to the display of an instruction for the user such as "enter your PIN code” and a line dedicated to the display of the result, that is to say say the number "OTP”.
- CAP Chip Authentication Program
- LCD liquid crystal display
- EP 1 662 299 A (FUJITSU LTD [JP]; FUJITSU FRONTECH LTD [JP]) May 31, 2006 (2006-05-31) discloses a smart card comprising a display having two dedicated lines of characters.
- the invention aims in particular to address the problems presented above economically.
- the concept of the invention lies in the implementation of a particular enlargement function but without a high resolution screen and without a graphic controller that would be too expensive. More specifically, the invention proposes to divert the display of one of the two lines of characters dedicated to the benefit of the display of the other line to display large either the instruction or the OTP, and this to title of additional function to comply with the above specifications.
- the subject of the invention is a device for generating OTP single use number, comprising a display having two lines of characters each dedicated respectively to an instruction line and an OTP number.
- the device is distinguished in that it further comprises magnification means capable of performing a function of enlarging the display of the OTP number at least, by a distribution of its display partly on the line of characters dedicated to the OTP and partly on that dedicated to instruction.
- the enlargement is performed only on the height of each character; magnification doubles the height of each character and maintains the width.
- the invention also relates to a display enlargement program for OTP display device able to control for each character pixel to be activated normally on a line of characters, said pixel having the coordinates (x, y) a matrix of pixels, an activation of corresponding enlarged pixels of coordinates equal to (x, 2y);
- the program assigns the same value to the coordinate pixel (x, 2y - 1) to improve the contrast.
- the single-use number generator device OTP and / or limited in time in particular comprises a display 3 of the LCD type controlled by a microcontroller type S3P7565, for example from SAMSUNG.
- the device comprises a card reader function thanks in particular to a contact card or contactless interface represented in the example by a contact connector 9 controlled by the microcontroller.
- the reader can read or receive validation signals of a PIN code entered by the user and controlled by the card.
- the device also comprises a human machine interface (HMI) represented here by a keyboard 11 for entering a PIN code.
- HMI human machine interface
- the display shows in accordance with the functional specifications of the CAP (Chip Authentication Program) MASTER CARD two lines 5, 7 of 12 characters each.
- CAP Chip Authentication Program
- the line 5 can be dedicated to the display of an instruction for the user while the other line 7 can be dedicated to the display of the result namely the OTP number.
- These specifications are generalized in the sense that a large number of companies submit to them. These specifications especially in the banking field are similar to a standard that must be complied with to obtain a certification or approval of the device. Functional recommendations or specifications of a group of companies are constraints which encourage those skilled in the art to comply with them in such a way as to characterize the product and obtain the group's contracts or to use them as a reference.
- the microcontroller also includes a single-use number generator OTP upon receipt of a validation signal received from the card. It provides an elementary control function of the pixels composing the display according to the display of alphanumeric characters of a single dimension.
- the microcontroller also comprises memories (RAM, ROM, EEPROM) containing in particular a pixel display control program to be executed for the operation of the device.
- the device comprises magnification means capable of performing a function of enlarging the display of the OTP number at least.
- this function is additive. However, it could be automatically programmed for visually impaired people.
- the display of the instruction or instruction to the user could be displayed directly in enlarged format, as well as the result.
- the enlargement according to the invention is effected by a distribution of its display partly on the line of characters dedicated to the OTP and partly on that dedicated to the instruction.
- an elementary or modular block M of pixels extracted from the display of the figure 2 has four pixel arrays for four characters each consisting of 5 X 7 pixels.
- step B the block undergoes according to a preferred embodiment an adaptation consisting of removing a space separating the two dedicated lines. This operation is carried out at the request of the inventors by the manufacturer of LCD screen or display by a redistribution of connections or pinning of the pixels of the screen.
- the enlargement is done only on the height of each character.
- the enlargement here preferably doubles the height of each character while maintaining the width.
- the invention makes it possible to obtain an economic enlargement with a non-graphic microcontroller, whereas in principle a graphic controller would be necessary to realize a zoom function that would be performed on the X axis as well as Y.
- the display of the device displays on power up, prior to a bank transaction, the instruction "type code" on the top line of the display, the code is transmitted to the card for example by the microcontroller of the reader (or device ), the card verifies the code and transmits a validation signal to the microcontroller; in response, the latter activates the OTP number generator which generates it, in particular using security and / or personalization data obtained by the card.
- the obtained OTP including the characters "0123456789” is displayed (step 100, figure 6 ), according to a default priority standard mode, by the driver of the display, directly on the lower line 7 of the display.
- an actuation of any key causes a display (step 120), in magnification mode along the Y axis (corresponding to the height of the characters).
- step 130 a new operation of any key on the keyboard 11 causes a return to the standard display (step 100).
- any triggering other than by pressing a key for example to the voice, or automatic with a time shift is also contemplated by the invention.
- the magnification function activated, automatic, or automatically set by default controls or matches for each pixel of character to be displayed normally on a line of characters and coordinates (x, y) of a matrix of pixels (P), an activation of pixels of coordinates (x, 2y) and (x, 2y-1).
- each pixel is doubled and shifted on the Y axis.
- the device comprises a program in a microcontroller capable of performing the magnification function.
- an equivalent function can be performed by wiring.
- each pixel of a line is associated with one pixel or several target pixels of the other line, for example by a connection or wiring using a switching device that can be activated by any means in particular push button to perform one of the enlargement functions targeted by the application.
- the OTP display device may comprise in a microcontroller program memory, a display enlargement program able to control for each character pixel to be activated in a standard manner on a line of characters, said pixel having the coordinates (x, y) of a matrix of pixels, an activation of corresponding enlarged pixels of coordinates equal to (x, 2y).
- the program assigns the same value to the coordinate pixel (x, 2y-1).
- the invention is applicable to any display device comprising at least two lines of characters, dedicated or not to information;
- the invention applies as soon as the enlargement of an information is performed by encroaching on the two lines both a priori used each for a reduced display format of data or information.
- magnification mode for example, even if a trigger or detector button is pressed
- the program prevents using the "instruction” line or the "result” line in favor of an enlargement of the instruction or result as long as the instruction or the result was not posted beforehand.
- magnification mode may be allowed or possible after or after regulatory operation has been followed.
- the program can expect to expand automatically after the instruction is displayed and after a certain amount of display on one line to display on two lines. Likewise for the result, before having the result, we switch to a mode in which the dedicated line is activated to display the result for a certain time then we automatically switch or actuate a trigger, on two lines to enlarge .
- magnification mode is inhibited as long as the normal regulatory sequence is not completed or has not been implemented.
- This arrangement makes it possible to prevent the magnification mode from being permanently activated and that ultimately only one enlarged line is activated in permanence and that there is no longer two separate dedicated lines and therefore the respect of the regulations imposing it.
- the device may comprise means for automatically inhibiting the magnification function to allow operation of the display on two dedicated lines in a normal mode.
- This inhibition can be released automatically including temporarily as soon as the normal mode has been achieved for example after each step of the display of each line.
- the magnification mode is automatically deactivated to return to normal operation of dedicated lines.
- the magnification can be activated and deactivated automatically on event or after a certain time.
- the event may preferably be an instruction display carried out on a dedicated line, code introduced on a dedicated line, result displayed on a dedicated line.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
L'invention concerne un dispositif d'affichage de mot de passe ou numéro à usage unique et/ou limité "OTP" (acronyme de l'expression anglo-saxonne "one time password".The invention relates to a password display device or number of single use and / or limited "OTP" (acronym for the expression "one time password".
Les numéros "OTP" sont utilisés notamment dans des opérations et/ou session d'authentification / identification de transactions électroniques. Un numéro OTP est généré à l'aide d'un dispositif électronique de petit format tel une clé USB, un mini lecteur de carte à puce, une calculatrice, un assistant personnel (PDA), un téléphone portable, mettant en oeuvre un mécanisme de calcul sécurisé pouvant utiliser notamment une carte à puce, un code PIN, un nombre aléatoire. Ce numéro généré est affiché sur un écran du dispositif à l'intention de l'utilisateur.The numbers "OTP" are used in particular operations and / or session authentication / identification of electronic transactions. An OTP number is generated using a small format electronic device such as a USB key, a mini smart card reader, a calculator, a personal assistant (PDA), a mobile phone, implementing a mechanism secure calculation that can use in particular a smart card, a PIN code, a random number. This generated number is displayed on a screen of the device for the user.
L'affichage de l'OTP est soumis actuellement aux contraintes des spécifications du "CAP (Chip Authentification Program) MASTER CARD" qui recommandent deux lignes d'affichage de 12 caractères minimum sur un écran. Ces lignes sont chacune dédiée à une fonction particulière: une ligne est dédiée à l'affichage d'une instruction pour l'utilisateur telle que "entrez votre PIN code" et une ligne dédiée à l'affichage du résultat, c'est-à-dire du numéro "OTP".The display of the OTP is currently subject to the constraints of the "CAP (Chip Authentication Program) MASTER CARD" specifications which recommend two display lines of 12 characters minimum on one screen. These lines are each dedicated to a particular function: a line is dedicated to the display of an instruction for the user such as "enter your PIN code" and a line dedicated to the display of the result, that is to say say the number "OTP".
Les écrans actuels utilisent des afficheurs de type à cristaux liquides (LCD) standards. Comme ils sont de petites dimensions, il est difficile de lire les messages ou instructions ou résultats, notamment pour les malvoyants.Current screens use standard liquid crystal display (LCD) displays. As they are small, it is difficult to read messages or instructions or results, especially for the visually impaired.
Il existe des écrans présentant des lignes d'affichage de plus grandes dimensions offrant ainsi un meilleur confort visuel de lecture. Cependant, ces écrans sont plus onéreux, de même que les boîtiers des dispositifs qui les reçoivent dans la mesure où ils sont proportionnés en conséquence pour les accueillir. En outre, le dispositif résultant devient trop encombrant.There are screens with larger display lines thus providing a better visual reading comfort. However, these screens are more expensive, as well as the housings of the devices that receive them to the extent that they are proportioned accordingly to accommodate them. In addition, the resulting device becomes too bulky.
Il existe également une solution sous forme de fonction audio permettant d'entendre l'OTP mais cela pose des problèmes de sécurité de l'environnement.There is also a solution in the form of audio function to hear the OTP but this poses problems of environmental safety.
Le document (
Le document (
L'invention a notamment pour objectif de répondre aux problèmes présentés ci-dessus de manière économique.The invention aims in particular to address the problems presented above economically.
Le concept de l'invention réside dans la mise en oeuvre d'une fonction d'agrandissement particulière mais sans écran de haute résolution et sans contrôleur graphique qui seraient trop onéreux. Plus précisément, l'invention propose de détourner l'affichage de l'une des deux lignes de caractères dédiées au profit de l'affichage de l'autre ligne pour afficher en grand soit l'instruction, soit l'OTP, et ce à titre de fonction supplémentaire de manière à respecter les spécifications susvisées.The concept of the invention lies in the implementation of a particular enlargement function but without a high resolution screen and without a graphic controller that would be too expensive. More specifically, the invention proposes to divert the display of one of the two lines of characters dedicated to the benefit of the display of the other line to display large either the instruction or the OTP, and this to title of additional function to comply with the above specifications.
Par ce biais, on utilise des lignes LCD standards avec même contrôleur élémentaire sans surcout majeur et sans boîtier de dispositif surdimensionné.In this way, standard LCD lines are used with the same elementary controller without any major surcharge and without an oversized device box.
A cet effet, l'invention a pour objet un dispositif générateur de numéro à usage unique OTP, comprenant un affichage présentant deux lignes de caractères dédiées chacune respectivement à une ligne d'instruction et de numéro OTP. Le dispositif se distingue en ce qu'il comporte en outre des moyens d'agrandissement aptes à réaliser une fonction d'agrandissement de l'affichage du numéro OTP au moins, par une répartition de son affichage en partie sur la ligne de caractères dédiée à l'OTP et en partie sur celle dédiée à l'instruction.For this purpose, the subject of the invention is a device for generating OTP single use number, comprising a display having two lines of characters each dedicated respectively to an instruction line and an OTP number. The device is distinguished in that it further comprises magnification means capable of performing a function of enlarging the display of the OTP number at least, by a distribution of its display partly on the line of characters dedicated to the OTP and partly on that dedicated to instruction.
Selon d'autres caractéristiques du dispositif, l'agrandissement est réalisé uniquement sur la hauteur de chaque caractère; l'agrandissement double la hauteur de chaque caractère et en maintient la largeur.According to other features of the device, the enlargement is performed only on the height of each character; magnification doubles the height of each character and maintains the width.
L'invention a également pour objet un programme d'agrandissement d'affichage pour dispositif d'affichage d'OTP apte à commander pour chaque pixel de caractère à activer normalement sur une ligne de caractères, ledit pixel ayant les coordonnées (x, y) d'une matrice de pixels, une activation de pixels correspondants agrandis de coordonnées égales à (x, 2y); Selon une autre caractéristique, outre une activation de pixel de coordonnées égales à (x, 2y) selon le mode précédent, le programme affecte une même valeur au pixel de coordonnées (x, 2y - 1) pour améliorer le contraste.The invention also relates to a display enlargement program for OTP display device able to control for each character pixel to be activated normally on a line of characters, said pixel having the coordinates (x, y) a matrix of pixels, an activation of corresponding enlarged pixels of coordinates equal to (x, 2y); According to another characteristic, besides Coordinate pixel activation equal to (x, 2y) according to the previous mode, the program assigns the same value to the coordinate pixel (x, 2y - 1) to improve the contrast.
D'autres particularités et avantages de l'invention apparaîtront à la lecture de la description qui suit, donnée à titre d'exemple illustratif et non limitatif, et faite en référence aux figures annexées pour lesquelles :
- la
figure 1 illustre un schéma d'architecture d'un dispositif générateur d'OTP conforme à l'invention; - la
figure 2 illustre une vue d'un afficheur de type standard à deux lignes de caractères; - la
figure 3 illustre une vue schématique un bloc élémentaire de pixels d'afficheur à deux lignes ainsi que ses différentes adaptations selon un mode de réalisation préféré; - la
figure 4 illustre l'afficheur en opération; - la
figure 5 illustre un bloc élémentaire de pixels de chaque ligne indexés sur un repère x, O, y;
- the
figure 1 illustrates an architecture diagram of an OTP generating device according to the invention; - the
figure 2 illustrates a view of a standard type display with two lines of characters; - the
figure 3 illustrates a schematic view an elementary block of two-line display pixels and its various adaptations according to a preferred embodiment; - the
figure 4 illustrates the display in operation; - the
figure 5 illustrates an elementary block of pixels of each line indexed on an x, O, y mark;
Sur les
L'afficheur présente conformément aux spécifications fonctionnelles du CAP (Chip Authentification Program) MASTER CARD deux lignes 5, 7 de 12 caractères chacune.The display shows in accordance with the functional specifications of the CAP (Chip Authentication Program) MASTER CARD two
Conformément à ces spécifications, la ligne 5 peut être dédiée à l'affichage d'une instruction destinée à l'utilisateur tandis que l'autre ligne 7 peut être dédiée à l'affichage du résultat à savoir le numéro OTP. Ces spécifications sont généralisées en ce sens qu'une grande partie d'entreprises s'y soumettent. Ces spécifications en particulier dans le domaine bancaire sont similaires à une norme à laquelle il convient de se conformer pour obtenir une certification ou agrément du dispositif. Des recommandations ou spécifications fonctionnelles d'un groupement d'entreprises sont des contraintes qui incitent l'homme de l'art à s'y conformer de manière à caractériser le produit et obtenir des marchés du groupement ou s'en servir comme référence.According to these specifications, the
Ces spécifications ou recommandations produisent des effets ou sont équivalentes à une norme.These specifications or recommendations produce effects or are equivalent to a standard.
Le microcontrôleur comporte aussi un générateur de numéro à usage unique OTP dès réception d'un signal de validation reçu de la carte. Il assure une fonction de pilotage élémentaire des pixels composant l'afficheur selon pour l'affichage de caractères alphanumériques d'une seule dimension.The microcontroller also includes a single-use number generator OTP upon receipt of a validation signal received from the card. It provides an elementary control function of the pixels composing the display according to the display of alphanumeric characters of a single dimension.
Le microcontrôleur comporte également des mémoires, (RAM, ROM, EEPROM) contenant notamment un programme de commande d'affichage de pixel à exécuter pour le fonctionnement du dispositif.The microcontroller also comprises memories (RAM, ROM, EEPROM) containing in particular a pixel display control program to be executed for the operation of the device.
Selon une caractéristique essentielle de l'invention, le dispositif comporte des moyens d'agrandissement aptes à réaliser une fonction d'agrandissement de l'affichage du numéro OTP au moins.According to an essential characteristic of the invention, the device comprises magnification means capable of performing a function of enlarging the display of the OTP number at least.
Pour se conformer à la norme ou spécifications, cette fonction est additive. Toutefois, elle pourrait être programmée d'office pour des personnes malvoyantes. L'affichage de la consigne ou instruction à l'utilisateur pourrait être affichée directement en format agrandi, de même que le résultat.To comply with the standard or specifications, this function is additive. However, it could be automatically programmed for visually impaired people. The display of the instruction or instruction to the user could be displayed directly in enlarged format, as well as the result.
L'agrandissement selon l'invention s'effectue par une répartition de son affichage en partie sur la ligne de caractères dédiée à l'OTP et en partie sur celle dédiée à l'instruction.The enlargement according to the invention is effected by a distribution of its display partly on the line of characters dedicated to the OTP and partly on that dedicated to the instruction.
L'homme de l'art est à priori cantonné dans les contraintes de la norme ou spécifications qui imposent une affection unique ou dédiée de ces lignes.Those skilled in the art are a priori confined to the constraints of the standard or specifications that impose a single or dedicated affection of these lines.
A la
A l'étape B le bloc subit selon un mode de réalisation préféré une adaptation consistant à supprimer un espace séparant les deux lignes dédiées. Cette opération s'effectue à la demande des inventeurs par le fabricant d'écran ou afficheur LCD par une redistribution des connexions ou brochage des pixels de l'écran.In step B the block undergoes according to a preferred embodiment an adaptation consisting of removing a space separating the two dedicated lines. This operation is carried out at the request of the inventors by the manufacturer of LCD screen or display by a redistribution of connections or pinning of the pixels of the screen.
A l'étape C, le bloc adapté comporte cette fois deux ensembles de pixels par 5 X 14 sans discontinuité apparente entre les deux lignes de caractères (après la septième ligne de pixels).
- A l'étape D, la fonction agrandissement est activée. Elle intervient de préférence sur l'axe Y dans la mesure où les lignes sont superposées sur l'axe Y. Les caractères qui étaient cantonnés dans la ligne inférieure dédiée sont alors répartis sur les deux lignes de caractères.
- In step D, the magnification function is activated. It intervenes preferably on the Y axis insofar as the lines are superimposed on the Y axis. The characters which were confined in the dedicated lower line are then distributed on the two lines of characters.
Il est à noter que l'agrandissement est réalisé uniquement sur la hauteur de chaque caractère. L'agrandissement ici double de préférence la hauteur de chaque caractère tout en maintenant la largeur.It should be noted that the enlargement is done only on the height of each character. The enlargement here preferably doubles the height of each character while maintaining the width.
Ainsi l'invention permet d'obtenir un agrandissement économique avec un microcontrôleur non graphique, alors qu'en principe un contrôleur graphique serait nécessaire pour réaliser une fonction zoom qui s'effectuerait aussi bien sur l'axe X que Y.Thus, the invention makes it possible to obtain an economic enlargement with a non-graphic microcontroller, whereas in principle a graphic controller would be necessary to realize a zoom function that would be performed on the X axis as well as Y.
En mode opératoire,
L'OTP obtenu comprenant les caractères "0123456789" est affiché (étape 100,
Selon un mode de fonctionnement préféré, un actionnement de toute touche (étape 110) provoque un affichage (étape 120), en mode agrandissement selon l'axe Y (correspondant à la hauteur des caractères).According to a preferred mode of operation, an actuation of any key (step 110) causes a display (step 120), in magnification mode along the Y axis (corresponding to the height of the characters).
A l'étape 130, un nouvel actionnement de toute touche du clavier 11 provoque un retour à l'affichage standard (étape 100).In
En variante, un déclenchement quelconque autre que par pression sur une touche, par exemple à la voix, ou automatique avec un décalage temporel est aussi envisagé par l'invention.Alternatively, any triggering other than by pressing a key, for example to the voice, or automatic with a time shift is also contemplated by the invention.
Selon un mode de réalisation préféré (
Ainsi chaque pixel se voit doublé et décalé sur l'axe Y.Thus each pixel is doubled and shifted on the Y axis.
Le dispositif comprend un programme dans un microcontrôleur apte à réaliser la fonction d'agrandissement. Alternativement une fonction équivalente peut être réalisée par câblage. Par exemple, chaque pixel d'une ligne est associé à un pixel ou plusieurs pixels cible de l'autre ligne, par exemple par un branchement ou câblage utilisant un dispositif aiguilleur activable par tout moyen notamment bouton poussoir pour réaliser une des fonctions d'agrandissement visée par la demande.The device comprises a program in a microcontroller capable of performing the magnification function. Alternatively an equivalent function can be performed by wiring. For example, each pixel of a line is associated with one pixel or several target pixels of the other line, for example by a connection or wiring using a switching device that can be activated by any means in particular push button to perform one of the enlargement functions targeted by the application.
Selon une alternative, le dispositif d'affichage d'OTP peut comporter dans une mémoire programme du microcontrôleur, un programme d'agrandissement d'affichage apte à commander pour chaque pixel de caractère à activer de manière standard sur une ligne de caractères, ledit pixel ayant les coordonnées (x, y) d'une matrice de pixels, une activation de pixels correspondants agrandis de coordonnées égales à (x, 2y).According to an alternative, the OTP display device may comprise in a microcontroller program memory, a display enlargement program able to control for each character pixel to be activated in a standard manner on a line of characters, said pixel having the coordinates (x, y) of a matrix of pixels, an activation of corresponding enlarged pixels of coordinates equal to (x, 2y).
Selon un mode préféré pour plus de contraste ua mode précédent, outre une activation de pixel de coordonnées égales à (x, 2y) le programme affecte une même valeur au pixel de coordonnées (x, 2y - 1).According to a preferred mode for more contrast in the previous mode, in addition to a pixel activation of coordinates equal to (x, 2y) the program assigns the same value to the coordinate pixel (x, 2y-1).
L'invention est applicable à tout dispositif d'affichage comportant au moins deux lignes de caractères, dédiées ou non à une information; L'invention s'applique dès l'instant où l'agrandissement d'une information s'effectue en empiétant sur les deux lignes à la fois à priori utilisées chacune pour un format d'affichage réduit d'une donnée ou information.The invention is applicable to any display device comprising at least two lines of characters, dedicated or not to information; The invention applies as soon as the enlargement of an information is performed by encroaching on the two lines both a priori used each for a reduced display format of data or information.
Pour certaines applications, notamment affichage OTP conforme au CAP MASTER CARD,
Il est recommandé de prévoir un programme d'affichage ou mode dans lequel, le dispositif ne peut fonctionner en mode agrandissement (par exemple, même si on appui sur un bouton déclencheur ou détecteur) de manière à respecter une réglementation imposant un fonctionnement à deux lignes dédiées; c'est-à-dire par exemple, le programme empêche d'utiliser la ligne "d'instruction" ou la ligne "résultat" au profit d'un agrandissement de l'instruction ou du résultat tant que l'instruction ou le résultat n'a pas été affiché au préalable. Ce mode agrandissement peut être autorisé ou possible après ou une fois que le fonctionnement réglementaire ait été respecté.For some applications, including OTP display conforming to CAP MASTER CARD,
It is recommended to provide a display program or mode in which the device can not operate in magnification mode (for example, even if a trigger or detector button is pressed) in order to comply with a regulation requiring operation with two dedicated lines; that is to say, for example, the program prevents using the "instruction" line or the "result" line in favor of an enlargement of the instruction or result as long as the instruction or the result was not posted beforehand. This magnification mode may be allowed or possible after or after regulatory operation has been followed.
Ainsi, les spécifications du CAP sont scrupuleusement respectées.Thus, the specifications of the CAP are scrupulously respected.
Donc par défaut, on dispose des deux lignes dédiées et utilisées comme telles selon un mode normal.So by default, we have two dedicated lines and used as such in a normal mode.
Le programme peut prévoir d'agrandir automatiquement après l'affichage de l'instruction et après un certain temps d'affichage sur une ligne pour afficher sur deux lignes. De même pour le résultat, avant d'avoir le résultat, on passe sur un mode dans lequel la ligne dédié est activée pour afficher le résultat pendant un certain temps puis on passe automatiquement ou sur actionnement d'un déclencheur, sur deux lignes pour agrandir.The program can expect to expand automatically after the instruction is displayed and after a certain amount of display on one line to display on two lines. Likewise for the result, before having the result, we switch to a mode in which the dedicated line is activated to display the result for a certain time then we automatically switch or actuate a trigger, on two lines to enlarge .
En quelque sorte, le mode agrandissement est inhibé tant que le déroulement normal réglementaire n'est pas terminé ou n'a pas été mis en oeuvre.In a way, the magnification mode is inhibited as long as the normal regulatory sequence is not completed or has not been implemented.
Cette disposition permet d'éviter que le mode agrandissement soit activé en permanence et qu'en définitive, une seule ligne agrandie soit activée en permanence et qu'il n'y ait plus de fait deux lignes distinctes dédiées ni par conséquent le respect de la réglementation l'imposant.This arrangement makes it possible to prevent the magnification mode from being permanently activated and that ultimately only one enlarged line is activated in permanence and that there is no longer two separate dedicated lines and therefore the respect of the regulations imposing it.
Ainsi, le dispositif peut comprendre des moyens d'inhibition automatique de la fonction d'agrandissement pour permettre un fonctionnement de l'afficheur sur deux lignes dédiée selon un mode normal.Thus, the device may comprise means for automatically inhibiting the magnification function to allow operation of the display on two dedicated lines in a normal mode.
Cette inhibition peut être libérée automatiquement notamment provisoirement dès que le mode normal a été réalisé par exemple après chaque étape de l'affichage de chaque ligne.This inhibition can be released automatically including temporarily as soon as the normal mode has been achieved for example after each step of the display of each line.
Selon une variante, le mode agrandissement se désactive automatiquement pour retrouver un fonctionnement normal de lignes dédiées.According to one variant, the magnification mode is automatically deactivated to return to normal operation of dedicated lines.
L'agrandissement peut s'activer et se désactiver automatiquement sur événement ou après un certain temps.The magnification can be activated and deactivated automatically on event or after a certain time.
L'événement peut être de préférence, affichage instruction réalisée sur ligne dédiée, code introduit sur ligne dédiée, résultat affichée sur ligne dédiée.The event may preferably be an instruction display carried out on a dedicated line, code introduced on a dedicated line, result displayed on a dedicated line.
Claims (9)
- A device for generating a one-time use "OTP" number, comprising a display having two lines of characters, each line being respectively dedicated to an instruction line and to an "OTP" number, display means for displaying the instruction and the "OTP" number over the lines dedicated thereto, according to specifications,
characterized in that the display means are so configured as to magnify the "OTP" number only after displaying once the instruction and the "OTP" number over the lines dedicated thereto, with said magnification being carried out by distributing the display of each character of the "OTP" number over both dedicated lines of characters. - A device according to claim 1, characterized in that the magnification is carried out over the height of each character only.
- A device according to one of claims 1 or 2, characterized in that the magnification doubles the height of each character and keeps the width thereof.
- A device according to one of the preceding claims, characterized in that the magnifying means comprise a non-graphic micro-controller.
- A device according to any one of the preceding claims, characterized in that it comprises a magnification function which, when activated, activates, for each character pixel to be normally activated over a line of characters, with said pixel having coordinates (x, y) of a pixel matrix, pixels having coordinates equal to (x, 2y) and (x, 2y-1).
- A device according to the preceding claim, characterized in that the device comprises a wiring or a program in a micro-controller able to carry out the magnification function.
- A device according to any one of the preceding claims, characterized in that the magnification function is possible only after displaying the result or the instruction over a dedicated line.
- A device according to the preceding claim, characterized in that it comprises means for automatically inhibiting the magnification function to enable the display to operate over two dedicated lines according to a standard or a normal mode.
- A device according to any one of the preceding claims, characterized in that it comprises means for automatically magnifying the OTP after a first display over a dedicated line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08761224.8A EP2168116B1 (en) | 2007-06-19 | 2008-06-19 | Display device with magnification function for limited-use password |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07301132A EP2017812A1 (en) | 2007-06-19 | 2007-06-19 | Display system with zoom function for limited used password |
EP08761224.8A EP2168116B1 (en) | 2007-06-19 | 2008-06-19 | Display device with magnification function for limited-use password |
PCT/EP2008/057790 WO2008155388A1 (en) | 2007-06-19 | 2008-06-19 | Display device with magnification function for limited-use password |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2168116A1 EP2168116A1 (en) | 2010-03-31 |
EP2168116B1 true EP2168116B1 (en) | 2016-08-03 |
Family
ID=38617377
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07301132A Withdrawn EP2017812A1 (en) | 2007-06-19 | 2007-06-19 | Display system with zoom function for limited used password |
EP08761224.8A Active EP2168116B1 (en) | 2007-06-19 | 2008-06-19 | Display device with magnification function for limited-use password |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07301132A Withdrawn EP2017812A1 (en) | 2007-06-19 | 2007-06-19 | Display system with zoom function for limited used password |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP2017812A1 (en) |
ES (1) | ES2601489T3 (en) |
WO (1) | WO2008155388A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106657938A (en) * | 2017-03-07 | 2017-05-10 | 北京宝兴达信息技术有限公司 | Safety device for network video camera, and network video camera |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504829A (en) * | 1980-12-16 | 1985-03-12 | Casio Computer Co., Ltd. | Electronic equipment |
JPS6367526A (en) * | 1986-09-10 | 1988-03-26 | Tokyo Electric Co Ltd | Electronic charge scale |
EP1662299B1 (en) * | 2003-09-04 | 2010-02-24 | Fujitsu Limited | Ic card |
JP4062256B2 (en) * | 2004-01-05 | 2008-03-19 | セイコーエプソン株式会社 | Display driver and electronic device including display driver |
US7571489B2 (en) * | 2004-10-20 | 2009-08-04 | International Business Machines Corporation | One time passcode system |
-
2007
- 2007-06-19 EP EP07301132A patent/EP2017812A1/en not_active Withdrawn
-
2008
- 2008-06-19 WO PCT/EP2008/057790 patent/WO2008155388A1/en active Application Filing
- 2008-06-19 EP EP08761224.8A patent/EP2168116B1/en active Active
- 2008-06-19 ES ES08761224.8T patent/ES2601489T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2017812A1 (en) | 2009-01-21 |
WO2008155388A1 (en) | 2008-12-24 |
ES2601489T3 (en) | 2017-02-15 |
EP2168116A1 (en) | 2010-03-31 |
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