Patents Assigned to Ecole Polytechnique Federal de Lausanne
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Patent number: 9821163Abstract: Systems and methods are provided for treating a sexual disorder such as erectile dysfunction (ED) or female sexual arousal disorder (FSAD). An electrical stimulation system may include an implantable stimulation unit, an external patient controller, and an external physician controller. The implantable stimulation unit has an array of electrodes disposed on one or more flexible substrates configured to conform to a patient's anatomy at the pelvic plexus. Post-implantation, the physician controller may direct the stimulation unit to stimulate with select electrode(s) of the array to determine which electrode configuration provides optimal sexual arousal. The patient controller may be used to cause the stimulation unit to stimulate using the optimal electrode configuration at desired times.Type: GrantFiled: October 12, 2015Date of Patent: November 21, 2017Assignee: Ecole Polytechnique Federal De Lausanne (EPFL)Inventors: Rodrigo Araujo Fraga Da Silva, Nikolaos Stergiopulos
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Patent number: 9337435Abstract: A dye sensitized solar cell, wherein a compacting compound whose molecular structure comprises a terminal group, a hydrophobic part and an anchoring group is co-adsorbed together with the dye on the semi-conductive metal oxide layer of the photoanode, forming a dense mixed self-assembled monolayer.Type: GrantFiled: April 29, 2004Date of Patent: May 10, 2016Assignee: Ecole Polytechnique Federal de Lausanne (EPFL)Inventors: Peng Wang, Shaik Mohammad Zakeeruddin, Michael Graetzel
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Patent number: 8963546Abstract: A method for performing magnetic resonance spectroscopy on solid samples containing nuclei of interest with spin quantum number I subjects the sample to a static magnetic field. The sample is spun at the magic angle and broad-band excitation of transverse magnetization of the nuclei of interest is effected by applying a first train of rotor-synchronized rf-pulses, having a carrier frequency, to the nuclei of interest with a pulse duration 0.1 ?s<?p<2 ?s, the first train of rf-pulses comprising k·n pulses extending over k rotor periods ?rot with n pulses per rotor period ?rot, wherein n is an integer n>1. Uniform excitation of a great number of spinning sidebands or families of sidebands that arise from large first-order quadrupole or hyperfine interactions is enabled and signal intensity is thereby improved.Type: GrantFiled: February 23, 2012Date of Patent: February 24, 2015Assignees: Bruker BioSpin AG, Ecole Polytechnique Fédéral de Lausanne (EPFL)Inventors: Simone Ulzega, Veronika Vitzthum, Geoffrey Bodenhausen, Marc Anthony Caporini
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Publication number: 20140009341Abstract: Computerized systems and methods are provided for locating at least one object within a predefined cell or location. In accordance with one implementation, a location system is provided which comprises at least first and second receivers and first and second transmitters, respectively, including first and second internal clocks, the receivers and the transmitters, respectively, having known locations. The location system further includes a transmitter and a receiver, respectively, worn or carried by the object and designed to communicate by signal exchanges with the receivers and the transmitters, respectively. The location system further includes electronic circuits designed to compute position related information of the object based on the signal exchanges.Type: ApplicationFiled: February 19, 2013Publication date: January 9, 2014Applicant: ECOLE POLYTECHNIQUE FEDERAL DE LAUSANNE (EPFL)Inventor: ECOLE POLYTECHNIQUE FEDERAL DE LAUSANNE (EPFL)
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Patent number: 7916839Abstract: The present invention is directed to a collimator that comprises grooves or channels in the submicrometer to micrometer range. The present invention is also related to uses of a collimator and collimator holder as described herein as well as apparatuses comprising the same.Type: GrantFiled: April 17, 2009Date of Patent: March 29, 2011Assignees: University De Geneva, Ecole Polytechnique Federal De LausanneInventors: Thanos D. Halazonetis, Andre Liani, Nathan Jenkins, Juergen Brugger, Kristopher Pataky
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Publication number: 20110051847Abstract: Method for estimating and correcting a frequency offset between a local clock of a receiving transceiver and a remote clock of an emitting transceiver comprises receiving by said receiving transceiver, a signal emitted by the emitting transceiver, said signal lacking a continuous sinusoidal carrier and having at least one symbol, each symbol being emitted within a time frame having a first duration; sampling the signal by taking for each time frame a set of energy measurements of said signal; forming a matrix representative of said energy measurements; determining from said energy matrix, points of maximum of energy within each time frame; determining a line connecting a plurality of said points within each of said time frames; determining a slope of said line; calculating a frequency offset between the clocks of the emitting and receiving transceivers using the slope; and adjusting the receiving transceiver's clock frequency according to the frequency offset.Type: ApplicationFiled: September 1, 2010Publication date: March 3, 2011Applicant: ECOLE POLYTECHNIQUE FEDERAL DE LAUSANNEInventors: Manuel FLURY, Ruben Merz, Jean-Yves Le Boudec
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Patent number: 7685587Abstract: Commercial data processors are available that include a capability of extending their instruction set for a specified application, i.e. of introducing customized functional units in the interest of enhanced processing performance. For such processors there is a need for automatically forming the extensions from high-level application code. A technique is described for selecting maximal-speedup convex subgraphs of the application dataflow graph under micro-architectural constraints.Type: GrantFiled: November 19, 2003Date of Patent: March 23, 2010Assignee: Ecole Polytechnique Federal de LausanneInventors: Laura Pozzi, Kubilay Atasu, Paolo Ienne Lopez
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Publication number: 20090081122Abstract: The injectable formulation for treatment by hyperthermia comprises a liquid carrier and heat-generating superparamagnetic iron oxide nanoparticles having a mean diameter not greater than 20 nm. Said injectable formulation is able to form in-situ a hyperthermic solid or semi-solid implant upon contact with a body fluid or tissue. Said hyperthermic solid or semi-solid implant may be useful for treating a tumor or a degenerative disc disease by hyperthermia.Type: ApplicationFiled: May 23, 2005Publication date: March 26, 2009Applicants: UNIVERSITE DE GENEVE, ECOLE POLYTECHNIQUE FEDERAL DE LAUSANNE (EPFL), HOPITAUX UNIVERSITAIRES DE GENEVEInventors: Daniel Rufenacht, Eric Doelker, Olivier Jordan, Mathiew Chastellain, Alke Petri-Fink, Heinrich Hofmann
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Patent number: 7370019Abstract: A method for the genetic representation of a network (100), the network having one or more devices (20, 30, 70, 80), each device comprising at least one terminal (21, 22, 23; 71, 72) connected to at least one other terminal (21, 22, 23; 71, 72, 61) by a link with a value of interaction strength. The method includes associating with the devices terminal (21, 22, 23; 71, 72) a first sequence of characters (121, 122, 123; 171, 172), associating with the other terminal (21, 22, 23; 71, 72, 61) a second sequence of characters (121, 122, 123; 171, 172; 162), mapping at least part of the first sequence of characters (121, 122, 123; 171, 172) and at least part of the second sequence of characters (121, 122, 123; 171, 172; 161) to the value of interaction strength in order to determine the value of interaction strength.Type: GrantFiled: June 23, 2005Date of Patent: May 6, 2008Assignee: Ecole Polytechnique Federal de LausanneInventors: Claudio Mattiussi, Dario Floreano
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Patent number: 7262402Abstract: An integrated imager circuit having a monolithic array of single photon avalanche diodes (SPADs) for capturing an image of a scene when said scene is hit by an optical pulse. The array has a plurality of SPADs connected to 2D readout circuits which determines the intensity of the light reflected by the scene by counting the number of photons received by the SPADs during a period of time. A plurality of SPADs connected to 3D readout circuits determines the distance to the scene by determining the elapsed time between the emission of each pulse and reception of the corresponding reflected photons.Type: GrantFiled: February 14, 2006Date of Patent: August 28, 2007Assignee: Ecole Polytechnique Federal de LausanneInventors: Cristiano Niclass, Edoardo Charbon, Pierre-Andre Besse, Alexis Rochas
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Patent number: 6667374Abstract: A high molecular weight water soluble acrylamide based polymer having improved flocculating and dewatering properties is provided. The polymer is prepared by a process in which a small quantity of a chain branching agent is added to the polymerization reaction mixture continuously or stepwise while the monomers are polymerized. The polymer is useful in solid/liquid separations such as flocculants and coagulants in wastewater treatment applications, and as thickening agents.Type: GrantFiled: March 13, 2002Date of Patent: December 23, 2003Assignee: Ecole Polytechnique Federal de LausanneInventors: Jose Hernandez-Barajas, Christine Wandrey, David Hunkeler
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Patent number: 6509174Abstract: Fluorescent protein expressing cells with very high fluorescence are described as well as a method to obtain such cells. The fluorescence of such cells can be as high as about 1000 times the auto-fluorescence of the respective host cell. Due to the high fluorescence, said cells are very suitable tools in the development, surveillance and/or optimization of production processes, for selection of culture media and process parameters and for the determination of cell growth and the detection, quantification and monitoring of biomass.Type: GrantFiled: June 16, 1998Date of Patent: January 21, 2003Assignee: Ecole Polytechnique Federal de Lausanne (EPFL)Inventors: Martin Jordan, Florian Maria Wurm
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Patent number: 5784540Abstract: New methods of manipulating topological regions and properties have been discovered. These novel methods simplify complex spatial design problems. In some cases, the methods provide solutions or outputs where prior techniques fail entirely. Prior methods of reasoning about relations in two-dimensional space require computation with exact geometry even when only topological answers are required. For example, computing which sets of two-dimensional regions have simultaneous intersections would require explicitly constructing these intersections. These techniques become unnecessarily complex when regions have complex shapes. The present invention includes methods where topological properties of a set of regions in two-dimensional space can be manipulated by applications of topological computations. Two classes of these methods select and determine maximal and minimal simultaneous region intersections.Type: GrantFiled: March 8, 1996Date of Patent: July 21, 1998Assignee: Ecole Polytechnique Federal de LausanneInventor: Boi Faltings