Patents Assigned to EPFL
-
Patent number: 9549328Abstract: A method to optimize the communication on a channel between an access point and at least one client device, said channel being characterized by a center frequency and a bandwidth, comprises: establishing a connection on a first channel according to a first center frequency and a first bandwidth; exchanging data through this first channel between the access point and the client device; monitoring a first interference level on the first channel; the access point, while the data are exchanged, executes: informing the client device to switch to a second channel having a different center frequency and/or a different bandwidth; determining a second interference level on the second channel; comparing the first interference level with the second interference level; deciding to switch back or keep the second channel based on the comparison.Type: GrantFiled: April 11, 2014Date of Patent: January 17, 2017Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Julien Herzen, Ruben Merz, Patrick Thiran
-
Publication number: 20170013193Abstract: A multi-camera hemispherical very wide field of view imaging apparatus with omnidirectional illumination capability comprises a cylindrical body (4, 4.a, 4.b), a hemispherical mechanical frame (2) arranged on one end of the cylindrical body (4, 4.a, 4.b), a plurality of imaging channels (3), each imaging channel (3) comprising at least an image sensor and related optics with a fixed focus appropriate for endoscopic imaging, the plurality of imaging channels (3) being distributed over the hemispherical mechanical frame (2), a light source arranged centre-down at a back part of the plurality of imaging channels (3) and inside or at the end of the cylindrical body (4, 4.a, 4.b). Each imaging channel (3) comprises a plurality of lightning channels (1) around their centre, each of the plurality of lightning channels (1) comprising at least one microfiber light guide having a determined angle of curvature arranged to transmit the light from the light source.Type: ApplicationFiled: February 24, 2015Publication date: January 12, 2017Applicant: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Ömer Cogal, Yusuf Leblebici
-
Patent number: 9540428Abstract: Heparin binding peptides derived from a Tenascin (TNC) III1-5 domain or a fibrinogen ?15-66 domain have been found that bind certain cytokines with high affinity. Materials and methods for making compositions and devices using these peptides are disclosed.Type: GrantFiled: July 2, 2013Date of Patent: January 10, 2017Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Jeffrey A. Hubbell, Mikael Martino, Laura De Laporte, Jeffrey J. Rice, Federico Tortelli
-
Patent number: 9536047Abstract: In this invention, we propose privacy-enhancing technologies for medical tests and personalized medicine methods, which utilize patients' genomic data. Assuming the whole genome sequencing is done by a certified institution, we propose to store patients' genomic data encrypted by a patient's public keys at a Storage and Processing Unit (SPU). A part of the corresponding private key is also stored on the SPU. At the time of the test by a Medical Unit (MU), the patient provides the second part of the private key to the MU. A test with its associated markers is determined by the MU and sent to the SPU. The test is carried out on the encrypted values thanks to homomorphic operation and returned back to the MU. The latter uses the second part of the private key to access the result.Type: GrantFiled: January 12, 2016Date of Patent: January 3, 2017Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Erman Ayday, Jean-Pierre Hubaux, Jean L. Raisaro, Amalio Telenti, Jacques Fellay, Paul J. McLaren, Jacques Rougemont, Mathias Humbert
-
Publication number: 20160367145Abstract: A functional optical coherent imaging (fOCI) platform includes at least one active camera unit (ACU) having a coherent and/or a partially coherent light source, and means for spectral filtering and imaging a selected body area of interest; an image processing unit (IPU) for pre-processing data received from an ACU; at least one stimulation unit (STU) transmitting a stimulation to a subject; at least one body function reference measurement unit (BFMU); a central clock and processing unit (CCU), with interconnections to the ACU, the IPU, the STU, for collecting pre-processed data from the IPU, stimuli from the STU body function reference data from the BFMU in a synchronized manner; a post-processing unit (statistical analysis unit, SAU); and an operator interface (HOD.Type: ApplicationFiled: June 29, 2015Publication date: December 22, 2016Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Theo LASSER, Dimitri VAN DE VILLE, Erica MARTIN-WILLIAMS, Marcel LEUTENEGGER, Iwan MAERKI, Michael FRIEDRICH, Martin VILLIGER
-
Patent number: 9524370Abstract: A privacy-preserving method for performing a disease susceptibility test on a patient, said method comprising: (I) performing homomorphic computations, (J) obtaining a test result which is partly decrypted with a first part (prk1 resp. prk2) of a private key, (L) decrypting said partly decrypted result with a second part (prk2 resp. prk1) of said private key, wherein said homomorphic computations are based on encrypted genomic markers of the patient, on encrypted clinical and/or environmental markers, and on encrypted ancestry markers of the patient. The invention is also related to a method for inferring ancestry in the encrypted domain.Type: GrantFiled: November 3, 2014Date of Patent: December 20, 2016Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Jean L. Raisaro, Erman Ayday, Paul McLaren, Jean-Pierre Hubaux, Amalio Telenti
-
Publication number: 20160364990Abstract: A navigation system including a vehicle dynamic model (VDM) that serves as the main process model within a navigation filter is described. When used in an unmanned aerial vehicle (UAV), the navigation system may work in communication with inertial measurement units (IMUs) and environment dependent sensors such as GNSS receivers. Particularly, the navigation system is beneficial in the case of GNSS signal reception outages, where conventional IMU coasting drifts quickly. Yet, the navigation system may also be employed in other scenarios, for example during GNSS presence for improved positioning, velocity and attitude determination, or in combination with GNSS when no IMU is available by design or due to a failure. In the navigation system, a solution to VDM equations provides an estimate of position, velocity, and attitude, which can be updated within a navigation filter based on available observations, such as IMU data or GNSS measurements.Type: ApplicationFiled: June 8, 2016Publication date: December 15, 2016Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Mehran Khaghani, Jan Skaloud
-
Patent number: 9518087Abstract: Peptides that specifically bind erythrocytes are described. These are provided as peptidic ligands having sequences that specifically bind, or as antibodies or fragments thereof that provide specific binding, to erythrocytes. The peptides may be prepared as molecular fusions with therapeutic agents, tolerizing antigens, or targeting peptides. Immunotolerance may be created by use of the fusions and choice of an antigen on a substance for which tolerance is desired. Fusions with targeting peptides direct the fusions to the target, for instance a tumor, where the erythrocyte-binding ligands reduce or entirely eliminate blood flow to the tumor by recruiting erythrocytes to the target.Type: GrantFiled: August 9, 2011Date of Patent: December 13, 2016Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Jeffrey A. Hubbell, Stéphane Kontos, Karen Y. Dane
-
Patent number: 9517257Abstract: Peptides that specifically bind erythrocytes are described. These are provided as peptidic ligands having sequences that specifically bind, or as antibodies or fragments thereof that provide specific binding, to erythrocytes. The peptides may be prepared as molecular fusions with therapeutic agents, tolerizing antigens, or targeting peptides. Immunotolerance may be created by use of the fusions and choice of an antigen on a substance for which tolerance is desired.Type: GrantFiled: February 15, 2012Date of Patent: December 13, 2016Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Jeffrey A. Hubbell, Stéphane Kontos, Karen Y. Dane
-
Publication number: 20160359991Abstract: A recommender system for determining multimedia items to be presented in an online interface of a multimedia content provider. The recommender system continuously observes the user's behavior in order to define a context for the user which on the basis of which recommendations are computed. The recommender system observes a variety of events so as to improve the level of pertinence of the recommendations which are presented to the user in the online interface. The recommender system further observes the collection of multimedia items which are hosted by an online multimedia content provider system.Type: ApplicationFiled: June 8, 2015Publication date: December 8, 2016Applicant: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Florent GARCIN, Boi Faltings
-
Patent number: 9508854Abstract: A single field effect transistor capacitor-less memory device, and method of operating the same, including a drain region, a source region, an intrinsic channel region between the drain region and the source region forming the single field effect transistor and a base. The device further includes a fin structure comprising the source region, the intrinsic channel and the drain region, the fin structure extending outwardly from the base, and a double gate comprising a first gate connected to a first exposed lateral face of the intrinsic channel region for transistor control, and a second gate connected to a second exposed lateral face of the intrinsic channel region to generate a potential well for storing mobile charge carriers permitting memory operation, the first gate and the second gate being asymmetric for asymmetric electrostatic control of the device.Type: GrantFiled: October 6, 2014Date of Patent: November 29, 2016Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Arnab Biswas, Nilay Dagtekin, Mihai Adrian Ionescu
-
Publication number: 20160339216Abstract: A system for the treatment of Alzheimer's disease is provided by moving cerebrospinal fluid containing particles know to contribute to onset of Alzheimer's disease from a source of cerebrospinal fluid to the stomach or bladder, where the particles are safely digested by gastric acid or excreted, the system including an implantable pump, an inlet catheter, an outlet catheter, and a one-way valve. The system further includes at least one filter to filter harmful particles from the cerebrospinal fluid and return the filtered cerebrospinal fluid back to the source of cerebrospinal fluid, where the harmful particles blocked by the filter may be rinsed off the filter and transported to the stomach or bladder.Type: ApplicationFiled: August 1, 2016Publication date: November 24, 2016Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Tim LENIHAN, Bruce MEADOWS
-
Patent number: 9497356Abstract: We propose new methods for creating color or achromatic images that are printed with classical cyan, magenta, yellow and a white diffusing ink on a metallic substrate. We optimize the surface coverages of the cyan, magenta, yellow and white inks in order to create color prints on a metallic surface that look bright and colorful under specular reflection and also look good under non-specular observation conditions. We also provide new means for the prevention of counterfeits. A first effect enables viewing on the same metallic print one achromatic image in specular viewing mode and a second independent achromatic image in non-specular viewing mode. The second effect enables hiding a pattern such as text, graphics or a grayscale image within the printed color image in one viewing mode, specular or non-specular and showing that pattern in the second viewing mode, non-specular or specular, respectively.Type: GrantFiled: June 23, 2015Date of Patent: November 15, 2016Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventor: Roger D. Hersch
-
Publication number: 20160306020Abstract: A method for the preparation of a hyperpolarized solution of molecules comprises the steps: 1) suspending or coating of a micro-particulate matrix, which is comprising or consisting of the molecules, with a glass-forming solution or suspension comprising a DNP-suitable polarizing agent at a first temperature at which the micro-particulate matrix is not dissolving; 2) lowering the temperature leading to a frozen glassy DNP sample; 3) transferring the electron spin polarization of the polarizing agent in the glassy sample in a magnetic field to abundant nuclear spins of the glass-forming solution or suspension and/or the polarizing agent as well as to abundant nuclear spins of the molecules and cross-polarization from the abundant nuclear spins in the molecules to one different nuclear spin type in the molecules; and 4) increasing the temperature and dissolving the molecules which are hyperpolarized with respect of the different nuclear spins.Type: ApplicationFiled: April 15, 2016Publication date: October 20, 2016Applicant: Ecole Polytechnique federale de Lausanne (EPFL)Inventors: Sami Antoine Adrien JANNIN, Geoffrey BODENHAUSEN, Lyndon EMSLEY
-
Publication number: 20160308150Abstract: The present invention relates to compounds of formula (I) based on a porphyrin core and a ?-conjugated linker or acceptor introduced between the porphyrin core and an anchoring group having a high absorption coefficient covering the whole UV-Visible and near-infrared spectral response, and their use as sensitizer or dye and an electrochemical or optoelectronic device including a compound of the invention.Type: ApplicationFiled: December 4, 2014Publication date: October 20, 2016Applicant: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Chenyi Yi, Fabrizio Giordano, Shaik Mohammad Zakeeruddin, Michael Graetzel
-
Patent number: 9468386Abstract: A method for classification of ECG beats into normal and different categories of abnormal beats. The method comprises the following steps, performed on a computing platform: a. performing a training phase comprising taking as an input one or more ECG beats that are pre-classified into the different categories, with each ECG beat decomposed into multiple features and defining membership functions for each beat category for each feature; b.Type: GrantFiled: March 10, 2015Date of Patent: October 18, 2016Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)Inventors: Ruben Braojos Lopez, Giovanni Ansaloni, David Atienza Alonso, Francisco Rincon Vallejos, Srinivasan Murali
-
Publication number: 20160287439Abstract: The device comprises at least an inlet tube for the passage of fluid to be drained, said tube being connected to a chamber wherein said chamber comprises rotating means for adjusting the flow rate in said tube.Type: ApplicationFiled: February 9, 2016Publication date: October 6, 2016Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventor: NIKOLAOS STERGIOPULOS
-
Patent number: 9460861Abstract: The present invention relates to modified surfaces. The surfaces comprise an inorganic material on which a phosphinic acid derivative is adsorbed. The phosphinic acid thus turns out to be a new anchoring group useful for surface derivatization. The invention has many applications for photoelectric conversion devices, batteries, capacitors, electrochromic displays, chemical sensors, biological sensors, light emitting diodes, electrodes, semiconductors, separation membranes, selective adsorbents, adsorbents for HPLC, catalysts, implants, nanoparticles, antiadhesives, and anticorrosion coatings, for example.Type: GrantFiled: June 30, 2014Date of Patent: October 4, 2016Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)Inventors: Shaik Mohammad Zakeeruddin, Peter Pechy, Michael Graetzel
-
Publication number: 20160279418Abstract: The present invention provides a closed-loop system for real-time control of epidural and/or subdural electrical stimulation comprising: means for applying to a subject neuromodulation with adjustable stimulation parameters, said means being operatively connected with a real-time monitoring component comprising sensors continuously acquiring feedback signals from said subject, said signals being neural signals and/or signals providing features of motion of said subject, said system being operatively connected with a signal processing device receiving said feedback signals and operating real-time automatic control algorithms, said signal processing device being operatively connected with said means and providing said means with new stimulation parameters, with minimum delay. The system of the invention improves consistency of walking in a subject with a neuromotor impairment.Type: ApplicationFiled: October 29, 2014Publication date: September 29, 2016Applicant: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Gregoire Courtine, Nikolaus Wenger, Eduardo Martin Moraud, Silvestro Micera, Marco Bonizzato
-
Patent number: 9452927Abstract: A method and device for the rapid detection of biomolecules (320) diffusing in a nanometer-confined slit (204) is claimed. In particular, the present invention relates to a novel concept of fluidic side apertures (205) that facilitates the filling of the device, the surface coating with biomolecules and that measures the affinity between fluorescently labeled biomolecules in aqueous solution with other biomolecules immobilized on surfaces.Type: GrantFiled: November 19, 2010Date of Patent: September 27, 2016Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Nicolas Durand, Yannick Fournier, Theo Lasser, Iwan Märki