INSTITUT POLYTECHNIQUE DE GRENOBLE Patent applications |
Patent application number | Title | Published |
20150289410 | ELECTRONIC DEVICE WITH COOLING BY A LIQUID METAL SPREADER - An electronic device with cooling of a heat dissipation source, by a liquid metals spreader, the device including at least one heat dissipation source, at least one spreader through which at least one liquid metal circulation channel passes forming a loop routed below a heat dissipation source, at least one heat sink, and at least one electromagnetic pump moving the liquid metal in the at least one channel such that the liquid metal absorbs heat dissipated by a heat dissipation source and transports the absorbed heat to be evacuated by the heat sink. Each spreader includes at least two plates made of an electrical insulating material located on each side of at least one bar made of deformable material. | 10-08-2015 |
20150162470 | STRUCTURE FOR FORMING SOLAR CELLS - The invention relates to a structure adapted for the formation of solar cells, comprising the following successive elements, namely: a sheet ( | 06-11-2015 |
20140233307 | METHOD OF PROGRAMMING A PHASE CHANGE MEMORY AND PHASE CHANGE MEMORY DEVICE - A method for pre-programming a matrix of phase-change memory cells, including a phase-change material positioned between two conducting electrodes and able to be reversely electrically modified so as to vary the resistivity of the memory cell. A dielectric layer is provided with the memory cell having an original resistive state at the end of the memory cell production process. A pre-programming of the matrix is executed prior to mounting a component containing the matrix on a support. A breakdown voltage is applied to a selection of memory cells so that, for each one of the selected cells, the layer of the dielectric material breaks down to bring the cell from the original resistive state to a second resistive state. | 08-21-2014 |
20140199613 | PROTON-CONDUCTING COMPOSITE MEMBRANE FOR FUEL CELLS - The present invention relates to a membrane that includes a porous polymer material made of a polyimide with interconnected macropores and impregnated with protic ionic liquid conductors (CLIP), as well as to the method for manufacturing same and to the uses thereof. The membranes of the invention fulfil the need for membranes including CLIPs, which have good proton-conducting properties as well as good physical properties, in particular high thermal and mechanical stability, in addition to a wide range of electrochemical stability. | 07-17-2014 |
20140166228 | METHOD FOR REMOVING A PART MADE OF A MATERIAL HAVING A GLASS-TRANSITION TEMPERATURE FROM A MOLD, AND MOLDING MACHINE - A method for removing a part from a mold and to a machine for molding said part, the part made of a material having a glass-transition temperature and a melting temperature that is higher than the glass-transition temperature, and which is shaped in the cavity of a mold, includes at least two mold portions defining said shaping cavity therebetween. The mold is at a temperature between said glass-transition temperature and said melting temperature. The method comprises opening the mold by spacing apart said mold portions, locally spraying a cooling gas toward the part remaining in a portion of the mold using at least one nozzle, and, after a predetermined time period following the start of spraying the gas, ejecting the part from said portion of the mold, the time period being such that the part reaches a temperature that is lower than the glass-transition temperature thereof. | 06-19-2014 |
20140159674 | Method for Monitoring a Li-ion Battery and Monitoring Device for the Implementation Thereof - Method for monitoring an electrochemical cell or a battery ( | 06-12-2014 |
20140037110 | METHOD AND DEVICE FOR FORMING A DIGITAL AUDIO MIXED SIGNAL, METHOD AND DEVICE FOR SEPARATING SIGNALS, AND CORRESPONDING SIGNAL - The invention relates to a method of forming one or more digital audio mixed signals (S | 02-06-2014 |
20130201046 | SIGMA-DELTA ADC WITH TEST CIRCUITRY - The invention concerns a sigma-delta switched capacitor analog to digital converter (ADC) comprising: an input line ( | 08-08-2013 |
20130200849 | SYSTEM FOR MANAGING A SERIES COMBINATION OF ELECTRICAL ENERGY GENERATION OR STORAGE ELEMENTS, BASED ON A PLURALITY OF VOLTAGE INVERTER LEGS - A management system for managing a series association of elements for storing and/or generating electrical energy (CA | 08-08-2013 |
20130181182 | PHASE-CHANGE MEMORY CELL - The memory cell includes a memory area which is formed in a phase-change material pattern based on chalcogenide. An electric pin-type junction is series-connected between electrodes. The pin junction is formed in a crystalline area by the interface between first and second doped areas of the phase-change material pattern. The memory area is formed in one of the two doped areas, at a distance from the junction. | 07-18-2013 |
20130127455 | MAGNETIC FIELD VECTOR SENSOR - A magnetic field vector sensor includes a substrate parallel to a plane, a support mobile relative to it and rotatable about a vertical rotation axis perpendicular to it, a magnetic field source generating a field having a moment in a non-perpendicular direction, the source being fixed to the support with no degree-of-freedom to exert torque on the support when a field to be measured is present, the field being non-collinear with the moment, a transducer to convert torque exerted on the support into a field amplitude of a component of the field along a measurement axis in the plane, wherein the source comprises a magnetostrictive permanent magnet for generating the field having a moment whose direction varies with stress on the magnet, and wherein the sensor further comprises a controllable device to reversibly modify the moment direction, and a stress generator to vary stress and hence moment direction. | 05-23-2013 |
20130041478 | SYSTEM AND METHOD FOR MANAGING SERVICES IN A LIVING PLACE - A system is provided for managing services in a living place, including:
| 02-14-2013 |
20130015248 | CHIPLESS PASSIVE RFID TAGAANM Perret; EtienneAACI Grenoble Cedex 1AACO FRAAGP Perret; Etienne Grenoble Cedex 1 FRAANM Tedjini; SmailAACI Genoble Cedex 1AACO FRAAGP Tedjini; Smail Genoble Cedex 1 FRAANM Vasudevan Nair; DeepaAACI Grenoble Cedex 1AACO FRAAGP Vasudevan Nair; Deepa Grenoble Cedex 1 FRAANM Garet; FredericAACI Saint-BaldophAACO FRAAGP Garet; Frederic Saint-Baldoph FRAANM Duvillaret; LionelAACI ChamberyAACO FRAAGP Duvillaret; Lionel Chambery FRAANM Vena; Arnaud MauriceAACI Guilherand-GrangesAACO FRAAGP Vena; Arnaud Maurice Guilherand-Granges FR - A chipless RFID tag comprises a plurality of disjoint parallel conducting bands formed on a dielectric support, in which conducting bridges interlink neighboring conducting bands, the conducting bridges delimiting, between the conducting bands, portions of dielectric bands of distinct lengths, each portion of dielectric brand determining a resonant frequency of the tag, the set of resonant frequencies of the tag defining an identification code. | 01-17-2013 |
20120326710 | METHOD FOR DETECTING THE MECHANICAL STRESS TO WHICH A PART MADE OF A MAGNETOSTRICTIVE MATERIAL IS SUBJECTED - The invention relates to a method for detecting the stress to which a part of a magnetic material having a detectable magnetostriction, such as a ferromagnetic material, is submitted, comprising the steps of: a) applying a variable stress to the part b) measuring the magnetic field (B) in the vicinity of the part during the application of the variable stress to the part; and c) comparing the measurement with a reference measurement. | 12-27-2012 |
20120236626 | MEMORY CELL - The object of the present invention is a non-volatile memory cell ( | 09-20-2012 |
20120203362 | METHOD AND DEVICE FOR FORMING A MIXED SIGNAL, METHOD AND DEVICE FOR SEPARATING SIGNALS, AND CORRESPONDING SIGNAL - The invention relates to a method of formation of one or more mixed signals (S | 08-09-2012 |
20120145670 | METHOD FOR ETCHING A MATERIAL IN THE PRESENCE OF A GAS - The invention relates to a method for etching a structure ( | 06-14-2012 |
20110295441 | DIGITAL CONTROL DEVICE FOR A PARALLEL PMOS TRANSISTOR BOARD - A digital control device for a parallel PMOS transistor board, includes: an operative memory for digitally storing error data between a target voltage and a setpoint voltage as well as control data, each datum being provided with a time marker, a digital selected order filter ( | 12-01-2011 |
20110274744 | PROCESS FOR PREPARING A SURFACE COATED BY CROSSLINKED POLYELECTROLYTE MULTILAYER FILMS AS A BIOMIMETIC RESERVOIR FOR PROTEINS - The invention relates to processes for coating a surface with a crosslinked polyelectrolytes multilayer film incorporating a protein, preferably a growth factor type protein. The invention also relates to crosslinked polyelectrolytes multilayer films obtained by this process, and a coated surface obtained therefrom. | 11-10-2011 |
20110264414 | METHOD FOR DETERMINING ABSOLUTE LAYOUT PARAMETERS OF OBJECTS, ASSOCIATED COMPUTER PROGRAMME AND CONTROL INSTALLATION - This method comprises the following steps: the obtaining ( | 10-27-2011 |
20110215761 | METHOD FOR DETERMINING THE STATE OF CHARGE OF A BATTERY IN CHARGING OR DISCHARGING PHASE - The method for determining the state of charge of a battery includes measurement of an electric parameter of the battery during a charging or discharging phase of the battery followed by placing the battery in open circuit during a rest period. During the rest period, at least two values of the voltage at the battery terminals are measured. An indicator is then calculated according to the electric parameter and to values of the voltage measured during the rest period, and the state of charge corresponding to this indicator is then determined by means of a calibration curve representative of the variations of the indicator as a function of the state of charge of the battery. | 09-08-2011 |
20110206467 | SEAT PORTION STRUCTURE FOR A HYDRAULIC TURBINE ENGINE - The instant disclosure relates to a seat portion structure for a ground-based hydraulic turbine engine. The seat portion structure includes a base plate. A first bearing element is connected to the base plate and contacts the ground. At least three arms are connected to the base plate by a pivoting link. The arms are adapted for pivoting relative to the base plate between a first position, in which the arms are placed near each other, and a second position, in which the arms radially extend from the base plate. A second bearing element is connected to one end of each arm and contacts the ground. A positioning device is adapted for changing the distance between the end of at least one arm and the associated second element. The structure includes, for each arm, a device for locking the arm in the second position. | 08-25-2011 |
20110164831 | METHOD FOR DETECTING ORIENTATION OF CONTOURS - A method for detecting orientation of the contours in an image, performs an initial transformation of the image using a non-decimated multi-resolution transform, segments the image into a plurality of blocks, determines the optimal resolution for each block, and detects the predominant direction of contour for each of the blocks. | 07-07-2011 |
20110055981 | Device for Positioning a Moveable Object of Submicron Scale - The instant disclosure describes a device for positioning a moveable object which can be moved over a distance of the order of 1 nanometer in a time of 1 microsecond or less, comprising: a microtip; first piezoelectric positioning, polarization, detection and control means for moving the microtip relative to the object and bringing it to a distance of the order of 1 nanometer from the object in order to make a tunnel current flow between the microtip and the object, for measuring the tunnel current and for slaving, depending on the measured tunnel current, the distance between the microtip and the object to a constant value (d | 03-03-2011 |
20110006534 | TURBINE ENGINE WITH TRANSVERSE-FLOW HYDRAULIC TURBINE HAVING REDUCED TOTAL LIFT FORCE - The invention relates to a turbine engine that includes at least first and second lift turbine stacks with transverse flow. The shafts of adjacent turbines in the first stack are connected by a first coupling device adapted for compensating space misalignments, and the shafts of adjacent turbines in the first stack are connected by a second coupling device adapted for compensating for space misalignments. The turbine engine includes a device for supporting the first and second turbine stacks, which is symmetrical to said plane, and a control device adapted for permanently maintaining the symmetry between the first and second turbine stacks relative to the plane, and for maintaining the rotation speeds of the first and second turbine stacks at equal values in opposite rotation directions. | 01-13-2011 |
20110005917 | METHOD FOR PURIFYING SILICON FOR PHOTOVOLTAIC APPLICATIONS - The disclosure relates to a method for purifying silicon by exposing liquid silicon to a plasma, wherein the silicon flows continuously into a channel so that the free surface thereof is exposed to the plasma. The disclosure also relates to a device for implementing the method. | 01-13-2011 |
20110000424 | METHOD FOR THE CRYSTALLOGENESIS OF A MATERIAL ELECTRICALLY CONDUCTING IN THE MOLTEN STATE - The disclosure relates to a method for the crystallogenesis of a material that is electrically conducting at the molten state, by drawing from a molten mass of the material in a crucible, that comprises: progressively subjecting the molten material to a decreasing temperature so that a liquid-solid interface is formed; controlling the flatness of the liquid-solid interface of the material; subjecting the molten material, before and during solidification, to an electromagnetic kneading; the method including that the electromagnetic kneading is obtained by applying an alternating magnetic field. The disclosure also relates to a device for implementing the method. | 01-06-2011 |
20100295546 | GRADIENT SENSOR OF A COMPONENT OF A MAGNETIC FIELD WITH PERMANENT MAGNET - A gradient sensor of a component of a magnetic field comprising at least one elementary sensor comprising a deformable mass ( | 11-25-2010 |
20100137727 | EXTRACTION OF FETAL CARDIAC SIGNALS - A method for processing cardiac signals includes accepting, from a sensor system, a set of one or more signals, the signals including components of a desired cardiac signal and components of a substantially periodic interfering signal. The method is applicable for extraction of desired fetal cardiac signals from signals with interference from the maternal cardiac signal. A periodicity of the interfering signal is determined, and one or more iterations of mitigating an effect of a component of the signals that exhibit periodicity at the determined periodicity of the interfering signal are performed. In some examples, the method further includes determining a periodicity of the desired cardiac signal, and performing one or more iterations of enhancing an effect of a component of the signals that exhibit periodicity at the determined periodicity of the desired cardiac signal. | 06-03-2010 |
20100089310 | DEVICE AND METHOD FOR PRODUCING SELF-SUSTAINED PLATES OF SILICON OR OTHER CRYSTALLINE MATERIALS - The device for producing a sheet of crystalline material by directional solidification of a material in liquid phase composed of a crucible provided with a bottom, side walls and at least one horizontal outlet slot arranged on a bottom part of a side wall. On its external surface in immediate proximity to the slot, the crucible presents electromagnetic means for creating magnetic repulsion forces on the material in liquid phase, at least at the level of the slot. An alternating current with a frequency comprised between 10 kHz and 300 kHz flows through the electromagnetic means. To foster stirring of the material in liquid phase, a low frequency can be used in addition to the above frequencies. | 04-15-2010 |
20100072078 | MICRO-DEVICE FOR ANALYSING LIQUID SAMPLES - A device for forming waves at the interface (I) of a liquid drop (F | 03-25-2010 |