baber/WOPTO huggingface dataset:
Patent FR-2581769-A1 (FR)
Title: Dispositif pour le stockage de fibres optiques
Inventor: GALAS ALBERT ROBERT CHARLES
IPC: G02B6/44
Filed: 1985-05-10
Abstract: L'invention permet de constituer - pour chaque fibre - une longueur de réserve mais de façon telle que la réserve propre à chaque fibre soit indépendante et ne puisse pas se mélanger aux autres fibres logées dans le dispositif. Des intercalaires 3 sont associés à un corps 2 de manière à constituer chacun une cloison de séparation entre deux fibres voisines. Chaque intercalaire comporte une lèvre 19 qui détermine la limite maximale autorisée à l'expansion de la longueur mise en réserve de la fibre correspondante et un bossage circulaire 18 dont le rayon correspond au rayon minimal admissible par la fibre optique. L'invention trouve une application dans le domaine des installations du réseau de vidéocommunications. (CF DESSIN DANS BOPI)
Patent FR-2587599-A1 (FR)
Title: Walking stick with arm support to increase the robustness and the comfort thereof whilst reducing the manufacturing time
IPC: A45B9/02
Filed: 1985-09-23
Abstract: The invention relates to walking sticks with arm supports which are also known as English-style walking sticks (crutches) or "schlicks". It enables the manufacturing time to be reduced and, simultaneously, the robustness and the comfort of the walking sticks to be increased. The walking stick comprises a tube 1 onto which is injected a crescent 2 and a hand grip 3. The invention may be used for manufacturing very strong walking sticks with an arm support and hand grips made from plastic, as a walking aid for aged persons, for re-education in walking, for those who have recently undergone an operation, etc. The appended drawing illustrates, by way of example, a walking stick with an arm support manufactured by means of plastic injection in accordance with the present invention. As shown, the walking stick with arm support, in the appended single figure, is composed of a tube 1 onto which is injected a part in the form of an elongated crescent 2, which will serve as a support for the arm, and of a hand grip 3.
Patent FR-2589354-A1 (FR)
Title: Cryostatic cushion for medical use
IPC: A61F7/10
Filed: 1985-11-06
Abstract: Cryostatic cushion for medical use. The invention relates to a cushion allowing cold to be retained for approximately twelve hours depending on the room temperature. It consists of an external envelope 1 which encloses 2 envelopes made of glass fabric 2 in which there is placed a plastic envelope 3 filled three quarters full with a gel 10. The device according to the invention is in particular intended for cryotherapy.
Patent FR-2590033-A1 (FR)
Title: Device for the three-dimensional detection of an object by laser light, particularly for a show
IPC: G10H1/00
Filed: 1985-11-13
Abstract: The device applies to a musical interpretation combined with a laser system controlled by a microcomputer. The method of detection is as follows: the direction of the light beam 2 emitted by a laser tube 1 at a given instant is defined along two axes X and Y by a computer 5 controlling an electro-optic deflecting system 3. The reflected or scattered light 8 resulting from the interception of the beam 6 by an object 7 is collected by a single optical sensor 9 which is then read by the computer. Intended particularly for shows.
Patent FR-2573993-A1 (FR)
Title: Procede pour ameliorer le fonctionnement d'un filtre a disques et filtre a disques mettant en oeuvre ce procede
Inventor: NIIRANEN TAPANI
IPC: D21D5/02
Filed: 1985-12-03
Abstract: PROCEDE POUR AMELIORER LE FONCTIONNEMENT D'UN FILTRE A DISQUES, UTILISE POUR FILTRER DES FLUIDES CONTENANT DES MATIERES SOLIDES TELLES QUE DES FIBRES, LE FILTRE A DISQUES COMPORTANT UN OU PLUSIEURS DISQUES DISPOSES SUCCESSIVEMENT LE LONG DE L'ARBRE CENTRAL DU FILTRE, LES DISQUES ETANT CONSTITUES DE PLUSIEURS SECTEURS, CE PROCEDE ETANT CARACTERISE EN CE QU'ON PREVOIT DES MOYENS POUR ADMETTRE DE L'AIR AMBIANT DANS LES SECTEURS 6 ET DANS LE CANAL CENTRAL 7 COMMUNIQUANT AVEC EUX ETOU POUR INSUFFLER DE L'AIR DANS LESDITS SECTEURS AFIN D'EVACUER LE FLUIDE FILTRE DES SECTEURS ET DU PASSAGE CENTRAL.
Patent FR-2591068-A1 (FR)
Inventor: SCHAPIRA JOSEPH
IPC: A01N39/04
Filed: 1985-12-09
Abstract: Herbicidal products of improved efficiency, based on an oxynil ester, characterised in that they comprise a mixture of n-heptanoic and n-butyric esters of bromoxynil and/or of ioxynil preferably in combination with one or more phenoxyalkanoic acids especially in ester or salt form.
Patent FR-2595028-A1 (FR)
Title: Method and device for automatically positioning insulating sleeves on to the ends of conductor wires
IPC: H01R43/28
Filed: 1986-02-21
Abstract: The subject of the invention comprises are a method and devices for automatically positioning insulating sleeves on to the ends of conductor wires. A device according to the invention includes a closed vertical vessel 3 into which insulating sleeves are dumped loose. This vessel includes a compressed-air inlet 5 at the lower end. The upper part of the said vessel is connected via a flexible tube 12 to an end-fitting 11 into which emerge two retractable stop pieces 13 and 14. The end-fitting 10 acts as a blowpipe. The rear end of the end-fitting 10 is articulated about a pin 18 and the front end is articulated about the rod of a thrust cylinder 19. One application is the equipping of a robot intended for automatically carrying out the operations for cutting up wires into lengths and for equipping with crimped-connection and insulating sleeve-covered parts.
Patent FR-2594803-A1 (FR)
Title: Cardboard cap for protecting the ends of tubular bodies
Inventor: BLAISE SYLVAIN
IPC: B65D59/08
Filed: 1986-02-26
Abstract: Cap protecting the ends of tubular bodies, obtained by folding one or more previously cut-out sheets of cardboard. The cap is formed from a skirt 1 surrounding the external wall of the end of the tubular body, provided with a collar 2 perpendicular to the said skirt and directed towards the inside of the latter. Two tongues for taking up play 3 allow a perfect fit of the cap to the tubular body to be protected.
Patent FR-2596385-A1 (FR)
Title: Floor for water treatment filter
Inventor: VALLETTE YVES
IPC: B01D24/22
Filed: 1986-03-26
Abstract: Floor for water treatment filter, of the kind consisting of plates penetrated by channelling or strainers whose head provided with passages for the fluids projects above the floor, and whose lower part is immersed in a space arranged below the floor and comprises orifices for entry of air and of washing water and for exit of filtered water. This floor is essentially characterised in that its strainers 2 are distributed therein strictly uniformly and without dead zones, including in the vicinity of the periphery of the floor P and in the vicinity of the joints 4 between two adjacent plates 1a, 1b, and by the fact that these strainers 2 are arranged at the nodes of an array with square meshes according to rows 3 which are parallel to the edges of the floor P. Application to treatment of water needing to be made drinkable, aqueous effluents and industrial water.
Patent FR-2597628-A1 (FR)
Title: Control device for an adjustable sluice gate of the bed of a water course
IPC: E02B7/20
Filed: 1986-04-21
Abstract: Control device for an adjustable sluice gate on the bed of a water course, which is able to open under the effect of pressure of water, comprising at least one hydraulic actuator 14 acting on the sluice gate in order to control its position, a hydraulic control circuit 23 for the said hydraulic actuator 14, causing, on the one hand, closing of the said sluice gate and, on the other hand, allowing it to be opened, as well as regulation means 31, for controlling the said hydraulic control circuit 27 bringing into play at least one limit level 33 for the retained water or possibly a limit position for the sluice gate, further comprising discharge means 37 for the said hydraulic actuator 14 which is subjected to the mechanical action of a float 20 detecting the level of the water retained by the sluice gate and which discharges this hydraulic actuator 14 when the level of the water retained reaches a value greater than the said limit level 33 so as thus to allow opening of the sluice gate under the effect of the pressure of water.
Patent FR-2581280-A1 (FR)
Title: Procede et appareil de traitement d'un signal d'image
Inventor: DOI TETSUO
IPC: H04N1/417
Filed: 1986-04-25
Abstract: L'INVENTION CONCERNE UN PROCEDE ET UN APPAREIL DESTINES AU TRAITEMENT D'UN SIGNAL D'IMAGE ET SERVANT A CODER ET, OU BIEN, DECODER UN SIGNAL D'IMAGE BINAIRE. L'APPAREIL COMPREND UN MOYEN D'ENTREE DE DONNEE 1, 2, 3, UN MOYEN DE CODAGE 12, UN MOYEN DE DECODAGE 11, DES MOYENS DE COMMANDE 6 COMPORTANT UNE MEMOIRE DE PROGRAMMES DE COMMANDE ET COMMANDANT LE MOYEN DE CODAGE ET LE MOYEN DE DECODAGE DE FACON QUE LE MOYEN DE CODAGE CODE ET COMPRIME LA DONNEE D'IMAGE D'ENTREE NON CODEE RECUE OU LE MOYEN DE DECODAGE DECODE ET DECOMPRIME LA DONNEE D'IMAGE D'ENTREE RECUE A PARTIR DE LA FORME DE DONNEE COMPRIMEE, ET UN MOYEN DE SORTIE DONNEE 1, 8, 9.
Patent FR-2598354-A1 (FR)
Title: Pen-ruler or penholding ruler
IPC: B43K31/00
Filed: 1986-05-07
Abstract: The invention relates to pen and ruler implements for writing, measuring and drawing straight lines. The pen-ruler according to the invention consists of a graduated ruler-cap 1 of square cross-section having a hole 4 for the introduction of a pen 5 fitted with a square stopper 2 of the same cross-section as the ruler-cap 1; fixed to this stopper is a clip 3. The same method is applied to flat 20-cm and 30-cm long rulers into which several pens of different colours are introduced. Variant embodiments of the pen-ruler are very useful for school pupils, who easily lose the caps to their pens. The system also makes it easy to use and store pens.
Patent FR-2598673-A1 (FR)
Title: Surfboard detachable fin - has fin root shaped to fit into recess with notch at one end and elastic pusher at other
IPC: B63B35/79
Filed: 1986-05-16
Abstract: The ejectable fin has a root (3) shaped to fit into a recess in the board and separate from it in the event of a shock to prevent damage. The root of the fin has projections at both ends, one engaging with a notch (5) in the board recess, and the other engaging with an elastic pusher (4) contained in the opposite end of the recess. The fin is attached by a flexible line (6) to the inside of the recess so that it does not get lost on separation.  When the fin strikes a solid object it is pushed back against the elastic pusher (4), becoming detached from the notch and is then ejected from the board recess. USE/ADVANTAGE - Easier fitting and less damage on collision.  For a surfboard or sailboard.
Patent FR-2583109-A1 (FR)
Title: Helicoptere a groupe turbomoteur equipe d'un dispositif d'ecran et de dilution du jet de sortie
Inventor: BANDERA GIANLUIGI
IPC: B64D33/04
Filed: 1986-06-06
Abstract: HELICOPTERE A GROUPE TURBOMOTEUR EQUIPE D'UN DISPOSITIF D'ECRAN ET DE DILUTION DU JET DE SORTIE. DES ECOULEMENTS DE FLUIDE PROVENANT DE LA TUYERE 10 DE LA TURBINE 8, D'UNE CONDUITE DE DERIVATION 9 SUR L'ENTREE D'AIR 5, D'UNE CONDUITE 10A EN COMMUNICATION AVEC LE COMPARTIMENT 8A LOGEANT LA TURBINE 8, ET D'UNE OU PLUSIEURS CONDUITES 15, 37 POUR REFROIDIR DES PARTIES INTERNES DE L'HELICOPTERE, CONVERGENT A L'INTERIEUR D'UN COLLECTEUR 12 DONT LA SORTIE EST RELIEE A UN DISPOSITIF D'ECRAN ET DE DILUTION TUBULAIRE 14, S'ETENDANT A L'EXTERIEUR DU COLLECTEUR 12 ET EQUIPE DE PROFILS D'AILE TRANSVERSAUX ET TUBULAIRES 22, 23, 24 EN COMMUNICATION AVEC L'EXTERIEUR ET AGENCES DE SORTE QU'ILS EMPECHENT LA TUYERE 10 D'ETRE DIRECTEMENT VISIBLE DE L'EXTERIEUR ET QU'ILS DELIMITENT UN CERTAIN NOMBRE D'EJECTEURS 27, 28, 29, 30 D'ACCELERATION ET DE MELANGE DU FLUIDE SORTANT DU COLLECTEUR 12. APPLICATION A L'EQUIPEMENT DES HELICOPTERES MILITAIRES.
Patent FR-2585570-A1 (FR)
Title: Procede de preparation d'une forme granulaire a liberation retardee d'un principe actif et forme granulaire obtenue
Inventor: VENTOURAS KIMON
IPC: A61K9/62
Filed: 1986-07-29
Abstract: LA PRESENTE INVENTION CONCERNE UN PROCEDE DE PREPARATION D'UNE FORME GRANULAIRE A LIBERATION RETARDEE D'UNE SUBSTANCE PHARMACEUTIQUEMENT ACTIVE, OU DE LEURS MELANGES, OU L'ON ENROBE UNE SUBSTANCE PHARMACEUTIQUEMENT ACTIVE GRANULEE OU CRISTALLINE, OU LEURS MELANGES, AVEC UN MELANGE DE MATIERES ENROBANTES CONSTITUE ESSENTIELLEMENT D'UN MELANGE HOMOGENE D'UN (METHYLETHYL) ESTER DE L'ACIDE POLY(HMETH)-ACRYLIQUE QUI EST INSOLUBLE MAIS DISPERSABLE DANS L'EAU ET D'UNE ETHYL-CELLULOSE QUI EST INSOLUBLE MAIS DISPERSABLE DANS L'EAU DANS UN RAPPORT PONDERAL DE 20:1 A 1:5, CARACTERISE EN CE QU'ON CHAUFFE LES GRANULES ENROBES PENDANT AU MOINS 5MINUTES A DES TEMPERATURES ELEVEES ALLANT DE 50 A 12C AINSI QUE LA FORME GRANULAIRE OBTENUE.
Patent FR-2602591-A1 (FR)
Title: Devices for taking samples of bulk loose material
IPC: G01N1/20
Filed: 1986-08-11
Abstract: The invention relates to devices for taking samples of bulk loose material at the intake of a bulk loose material store. These devices are situated under the grid of the reception pit, in order to assign the samples to the batch in question with certainty. By way of example, these devices may consist of tubes with a closeable slit, which are inclined or horizontal with pneumatic transport and placed at the constriction of a converging/diverging hopper. Auxiliary devices for detecting the level of the slope and the position of the stack make it possible to give information to the system for acquisition of the various magnitudes characterising the operation, in order to validate the assignment and representivity thereof.
Patent FR-2605677-A1 (FR)
Title: Greasing device for an internal combustion engine
Inventor: SKUPIEN CHRISTIAN
IPC: F01M1/12
Filed: 1986-10-24
Abstract: Greasing device for an internal combustion engine, of the type comprising a primary greasing circuit G1 for the bottom of the engine incorporating an oil pump for the circulation of the oil under variable pressure; according to the invention, this device comprises a secondary greasing surface G2 for the rocker assembly of this engine, independent of the primary circuit and incorporating a pump mounted at the end of a camshaft of this engine. Application particularly to improved greasing of an internal combustion engine.
Patent FR-2605953-A1 (FR)
Title: Car theft deterrent device
IPC: B60R25/00
Filed: 1986-11-04
Abstract: The invention relates to a device blocking the brake and clutch pedals simultaneously. The device consists of a stop 6 preventing thrust towards the floor of a vehicle. The recess 11 allows the passage of the brake and clutch pedal shanks into the caliper. The caliper cover 3, hinged on to a pin 9 held in a blind hole, allows closure onto the caliper 5 using a safety lock with a key 4. The device is made from special cast aluminium.
Patent FR-2606767-A1 (FR)
Title: Container-stoppering head
Inventor: GREGOIRE JACKY
IPC: B65B7/28
Filed: 1986-11-17
Abstract: The stoppering head forcibly drives the stopper into the neck of the container. It is characterised in that it includes a first piston 4 in an inner cylindrical chamber 3 actuating a thrust member 10, 11 mounted in the open lower part of the inner chamber, a second annular piston 5 in a peripheral chamber 6 actuating, in closure, a set of clamps 15 allocated to seizing the container, mounted so as to project under the head and articulated on the body 5 of the peripheral chamber, and a means 20 for placing the lower face of the thrust member at a reduced pressure for seizing and holding the stopper.
Patent FR-2607226-A1 (FR)
Title: Device permitting the reflection and the storage of heat emitted by a printed-circuit board of radiant panels
IPC: F24C7/06
Filed: 1986-11-26
Abstract: Device for reflecting and recovering heat from a radiant panel. The device consists of a shiny reflector 1 placed on the inner part of the cabinet (body) in order to reflect the heat, and dull-coloured plates, either made from refractory brick or from metal, in order to recover and subsequently regenerate (recycle) the heat emitted by the heating printed-circuit board 4.
Patent WO-8707942-A1 (WO)
Title: Opto-electronic device for determining the distance and the shape of an object
Inventor: HIGNETTE OLIVIER
IPC: G01S7/481
Filed: 1987-06-17
Abstract: The opto-electronic device for determining the distance and the shape of an object comprises a plurality of light sources such as laser diodes (10) associated with optical fibers (18) transforming the light beams emitted into substantially parallel cylindrical neighbouring beams (22) which are orientated towards the surface of the object (24) to be recognized. A photosensitive sensor (28) such as a PIN diode receives a light beam (34) diffused by the object and is associated with calculation means (38) determining by triangulation the distance of the object. The invention applies particularly to the closed-loop piloting of the terminal number of a robot.
Patent FR-2612280-A1 (FR)
Title: Revetement destine a la protection thermique d'une structure soumise a des conditions d'agressions thermiques intenses
Inventor: SANMARTIN MARIE-LOUISE
IPC: F16L59/02
Filed: 1987-03-13
Abstract: L'INVENTION CONCERNE UN REVETEMENT DESTINE A LA PROTECTION THERMIQUE D'UNE STRUCTURE 1, COMPRENANT TROIS COUCHES SUPERPOSEES DE NATURES DIFFERENTES. LA COUCHE SUPERFICIELLE EXTERNE 2 EST CONSTITUEE D'UN MATERIAU COMPOSITE COMPORTANT UNE MATRICE MINERALE, NOTAMMENT A BASE D'ARGILES APTES A REAGIR EN MILIEU AQUEUX, ENROBANT DES CHARGES STRUCTURALES DE RENFORT CONSTITUEES DE FIBRES, NOTAMMENT SOUS FORME DE TISSU, NAPPE DE FIBRES, PRE-IMPREGNE, MAT... LA COUCHE INTERMEDIAIRE 3 EST CONSTITUEE D'UN MATERIAU REFRACTAIRE MINERAL TEL QU'UN FEUTRE ALLEGE. LA COUCHE SUPERFICIELLE INTERNE 4 EST CONSTITUEE D'UN MATERIAU ALVEOLAIRE D'ISOLATION THERMIQUE, NOTAMMENT A BASE DE RESINE THERMOPLASTIQUE OU THERMODURCISSABLE. EN OUTRE, DES REFLECTEURS 5 CONSTITUES D'ECRANS ALUMINISES PEUVENT ETRE DISPOSES AU NIVEAU DE L'INTERFACE DE CHAQUE COUCHE.
Patent FR-2614146-A1 (FR)
Title: Transformation substation with door catch and interlock
Inventor: JACQUOT ALAIN
IPC: H02B7/06
Filed: 1987-04-17
Abstract: An electrical transformation substation 10 includes two doors 16, 18 equipped with a safety system. The doors for access to the inside of the substation are fitted with a catch 22 preventing any inadvertent closure of these doors. An interlock system between the doors 16, 18 allows the use of a single lock, one of the doors 16 being locked from inside.
Patent FR-2611211-A1 (FR)
Title: Solvant pour precurseur de colorant chromogene pour feuille de papier autocopiant et feuille de papier autocopiant preparee a l'aide du solvant
Inventor: OKADA YOSHIO
IPC: B41M5/165
Filed: 1987-05-13
Abstract: L'INVENTION A TRAIT A UN SOLVANT SENSIBLEMENT INODORE POUR PRECURSEUR DE COLORANT CHROMOGENE POUR FEUILLE DE PAPIER AUTOCOPIANT, QUI COMPREND DE 0 A 20 EN POIDS DE M-ISOPROPYLBIPHENYLE, DE 40 A 75 EN POIDS DE P-ISOPROPYLBIPHENYLE ET DE 5 A 40 EN POIDS DE DIISOPROPYLBIPHENYLE, AINSI QU'A UNE FEUILLE DE PAPIER AUTOCOPIANT COMPRENANT UNE FEUILLE DE DEVELOPPEMENT EN COULEUR REVETUE DE MICROCAPSULES CONTENANT UNE SOLUTION DE COLORANT, COMPOSEE DU PRECURSEUR DE COLORANT CHROMOGENE ET DU SOLVANT SENSIBLEMENT INODORE, ET UNE FEUILLE DE REVELATEUR DE COULEUR.
Patent FR-2616063-A1 (FR)
IPC: A61F13/06
Filed: 1987-06-04
Abstract: The invention concerns a device for containing the ankle joint and the process for placement of the device. The containing device comprises a first element (1) to be fitted on the lower limb, whereby this first element has gripping means (100, 102), (131), (151) and first means of co-operation with a second element (2), the second element consisting of two bandages assembled so as to substantially form a fork. The bandage of the fork (23) inclined at an angle (A) to a main bandage (20, 21) has on the right side and at a given distance (d) a portion of hook-and-loop tape of a given type (D) and at the end a portion of hook-and-loop tape of a type (P) complementary to the given type (D), and the main bandage (20, 21) has means for fixing the second element (2) by co-operation with the first means of co-operation.
Patent FR-2616363-A1 (FR)
Inventor: CHARBONNIER JEAN
IPC: B22D19/14
Filed: 1987-06-11
Abstract: The invention relates to a method and apparatus for sand molding composite articles formed of a light alloy metal and fibrous insert. A sand mold is formed containing a fibrous preform separated from the walls of the mold cavity. The mold is fed by means of a tube dipping into a liquid metallic bath therebelow. In the molding process, the pressure in the mold cavity and above the bath are reduced, and the pressure above the bath is increased to create a positive pressure differential  DELTA P, thereby forcing molten metal from the bath into the mold cavity. The pressure in the mold cavity and above the bath are then increased to above atmospheric, and the pressure differential  DELTA P is maintained until the metal in the mold cavity solidifies.
Patent FR-2617708-A1 (FR)
IPC: A61Q9/04
Filed: 1987-07-06
Abstract: A disposable depilatory composition including an elastomer, a resin and a softener or sweetener. This composition can be deposited on the skin in a thin layer and can be stripped from the skin without use of a film such as cellophane.
Patent FR-2617133-A1 (FR)
Title: Bouchon verseur doseur pour recipient a col filete et poignee laterale
Inventor: PERNE RAYMOND
IPC: B65D47/12
Filed: 1987-06-25
Abstract: Ce bouchon est du type constitué de deux éléments 6, 8 en matière moulable ou injectable, au moins un peu souple et élastique, telle qu'une matière plastique, et emboîtables l'un dans l'autre, l'un 6 de ces éléments, qui comporte un bec verseur 7, étant destiné à être fixé, par engagement, à l'extrémité libre du col fileté 3 du récipient 2, tandis que l'autre 8 comporte une chambre de dosage 9 et une jupe filetée 11 vissable sur le col fileté 3 du récipient 2. Les filets des cols 3 des récipients 2 possédant toujours une orientation angulaire prédéterminée et constante, d'une part, les deux éléments emboîtables 6, 8 du bouchon 2 possèdent des moyens 14, 15 d'assemblage démontable permettant de les assembler provisoirement l'un à l'autre, avec possibilité de rotation l'un par rapport à l'autre, avant leur pose sur le récipient 2 et, d'autre part, sont prévus des moyens 16, 17 permettant de les caler et positionner angulairement l'un par rapport à l'autre par simple rotation relative d'une fraction de tour, ce positionnement angulaire étant déterminé en fonction des orientations angulaires prédéterminées et constantes des filets du col 3 du récipient 2 et de l'élément de fermeture 8 du bouchon 5 pour qu'en fin de vissage du bouchon 5 sur le col 3 du récipient 2, le bec verseur 7 de l'élément à bec verseur 6 possède l'orientation angulaire souhaitée diamétralement opposée à celle de la poignée 4 du récipient 2.
Patent FR-2603408-A1 (FR)
Title: Imprimante de securite pour l'impression de valeurs
Inventor: CHICKNEAS ARTHUR A
IPC: G06F21/86
Filed: 1987-09-02
Abstract: ON DECRIT UN SYSTEME POUR ASSURER LA SECURITE D'UN DISPOSITIF CONTRE LES FRAUDES PAR INTRUSION ET SANS INTRUSION, CE DISPOSITIF ETANT UNE IMPRIMANTE 17 POUR UTILISATION DANS UN SYSTEME D'IMPRESSION DE VALEURS, TEL QU'UN SYSTEME D'EXPEDITION DU COURRIER. LESYSTEME COMPREND UN MICRO-ORDINATEUR DE DECRYPTAGE DE LA DONNEE D'ENTREE DEVANT ETRE IMPRIMEE EN CONFORMITE AVEC UNE CLEF VALABLE DE CHIFFRAGE, LA DONNEE CRYPTEE ET LA CLEF ETANT FOURNIES PAR UN AUTRE DISPOSITIF, PAR EXEMPLE PAR UN APPAREIL D'AFFRANCHISSEMENT 1. LA CLEF DE CHIFFRAGE EST STOCKEE DANS UNE MEMOIRE ANTI-FRAUDE POUVANT ETRE COUPLEE AU MICRO-ORDINATEUR POUR LUI FOURNIR LA CLEF. DE PLUS, LA MEMOIRE COMPORTE UN FIL DE FAIBLE SECTION DE FACON QUE LA PRESENCE DE CE FIL PUISSE DEFINIR UNE PARTIE DE LA CLEF DE CHIFFRAGE. POUR ASSURER ENCORE LA SECURITE CONTRE LES FRAUDES DU MICRO-ORDINATEUR, LA MEMOIRE ET LE FIL SONT NOYES DANS UN MATERIAU D'ENROBAGE. TOUTE TENTATIVE D'ENLEVEMENT DE CE MATERIAU POUR AVOIR ACCES AUX COMPOSANTS DANS LEQUEL ILS SONT NOYES PROVOQUERA LA RUPTURE DU FIL, CE QUI INVALIDERA LA CLEF DE CHIFFRAGE ET RENDRA LE MICRO-ORDINATEUR INOPERANT POUR DECRYPTER LA DONNEE A IMPRIMER.