Patents Assigned to EPFL
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Patent number: 10043871Abstract: Structure or device comprises a AlxGa1-xN or InyGa1-yN layer or substrate, a rare earth nitride epitaxial layer, and an AlzGa1-zN epitaxial interlayer between the rare earth nitride epitaxial layer and the AlxGa1-xN or InyGa1-yN layer or substrate. The interlayer is in direct contact with the rare earth nitride epitaxial layer and the AlxGa1-xN or InyGa1-yN layer or substrate.Type: GrantFiled: April 6, 2017Date of Patent: August 7, 2018Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Franck Natali, Stéphane Ange Vézian
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Publication number: 20180220070Abstract: An omnidirectional sensor array system, for example a panoptic camera, comprising a plurality of sensors arranged on a support of predetermined shape to acquire data, wherein said sensors are directional and wherein each sensor is attached to a processing node which comprises integrated electronics that carries out at least a portion of the signal processing algorithms locally in order to reduce the computational load of a central hardware unit.Type: ApplicationFiled: January 23, 2018Publication date: August 2, 2018Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Luigi BAGNATO, Laurent JACQUES, Pierre VANDERGHEYNST, Hossein AFSHARI, Alexandre SCHMID, Yusuf LEBLEBICI
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Patent number: 10038150Abstract: The invention relates to electrochemical devices comprising complexes of cobalt comprising at least one ligand with a 5- or six membered, N-containing heteroring. The complex are useful as p- and n-dopants, as over of electrochemical devices, in particular in organic semiconductors. The complexes are further useful as over-discharge prevention and overvoltage protection agents.Type: GrantFiled: April 14, 2016Date of Patent: July 31, 2018Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Julian Burschka, Florian Kessler, Etienne Baranoff, Mohammad Khaja Nazeeruddin, Michael Graetzel, Shaik Mohammed Zakeeruddin, Anders Hagfeldt, Marina Freitag, Fabrizio Giordano
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Patent number: 10022042Abstract: Systems and methods for imaging ear tissue include: directing illumination radiation to pass through an intact biological structure and be incident on ear tissue that does not include an exogenous fluorophore, at a plurality of locations, the illumination radiation including a plurality of light pulses each having a temporal duration of 500 femtoseconds or less; for each one of the plurality of locations, using a detector to detect radiation emitted from the location that passes through the intact biological structure; and forming an image of the tissue based on the detected radiation at each of the plurality of locations, where the emitted radiation corresponds to endogenous two-photon fluorescence of the tissue.Type: GrantFiled: October 29, 2012Date of Patent: July 17, 2018Assignees: Massachusetts Eye & Ear Infirmary, Ecole Polytechnique Federale De Lausanne (EPFL)Inventors: Konstantina Stankovic, Demetri Psaltis, Xin Yang, Ye Pu, Chia-Lung Hsieh
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Publication number: 20180193390Abstract: The invention relates to a food supplement comprising or consisting of Archaebacteria, and particularly methanogenic Archaebacteria, to be used as a probiotic adjunct for animal feed. The supplement can be provided to e.g. farmed animals in addition to standard feed or as a food composition. Such a supplement is particularly useful in aquaculture and proves able in increasing animal growth rates, reducing animal susceptibility to parasitic infections and/or ameliorating animal faecal waste impact on environment. Also encompassed by the present invention are methods of manufacturing a composition comprising the bioactive food supplement as well as uses thereof.Type: ApplicationFiled: March 16, 2016Publication date: July 12, 2018Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Duncan-Bruce SUTHERLAND, Mario Michael ZAISS
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Patent number: 9995668Abstract: Microfluidic system comprising a space for containing a liquid and at least one lateral chamber in communication with said space, said lateral chamber containing a metal electrode. The lateral chamber and the space are designed to be filled by the same or different liquid when the system is active.Type: GrantFiled: February 1, 2007Date of Patent: June 12, 2018Assignee: Ecole Polytechnique Fédérale de Lausanne (EPFL)Inventors: Philippe Renaud, Pontus Linderholm, Thomas Braschler, Nicolas Demierre, Urban Seger
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Patent number: 9978285Abstract: 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: GrantFiled: June 8, 2016Date of Patent: May 22, 2018Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Mehran Khaghani, Jan Skaloud
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Patent number: 9971862Abstract: A routing architecture for fast interconnections between Look-Up Tables (LUTs) in a group of Basic Logic Elements (BLEs), whereby a size of the group ranges from 1 to k+1, where k is the number of inputs of a LUT, and LUTs in the group are indexed from 1 to k+1, and whereby (a) an output of a LUTi, 1?i?k, connects to one of the inputs of routing multiplexers of LUTj, i<j?k+1, hence creating a fast interconnection between LUTs, each routing multiplexer of LUTm, 2?m?k+1, has only one input that is connected to the output of an other LUT, the output of LUT(k+1) being devoid of any connection to any one of the inputs of the routing multiplexers; (b) a subset of the inputs of LUT1 are connected to the outputs of other LUTs by means of fast interconnections, leaving the remaining inputs of LUT1 free of any fast interconnection, whereby for LUTp, 2?p?k+1, p?1 inputs of the LUTp are connected to the outputs of LUTq, 1?q?j, by means of fast interconnections; and (c) a cluster-based logic block contains at least oneType: GrantFiled: July 24, 2015Date of Patent: May 15, 2018Assignee: Ecole Polytechnique Fédérale de Lausanne (EPFL)Inventors: Xifan Tang, Pierre-Emmanuel Julien Marc Gaillardon, Giovanni De Micheli
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Patent number: 9964708Abstract: A bending compensation device for a waveguide, including a direction changing device configured to maintain a constant bending angle to the waveguide, a distal end of the waveguide having a first orientation, and the proximal end of the waveguide having a second orientation, and a motion device connected to the direction changing device, the motion device configured to move the direction changing device upon a movement of the waveguide.Type: GrantFiled: May 4, 2016Date of Patent: May 8, 2018Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Damien Loterie, Sebastien Walpen, Edgar Emilio Morales Delgado, Christophe Moser, Demetri Psaltis
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Publication number: 20180118786Abstract: The present invention relates to a bicyclic inhibitor of the coagulation enzyme activated factor XII (FXIIa) comprising or consisting of the peptide) (X1)(X2)(X3)n(X4)RL(X5)(X6)m(X7)(X9)l(X10)(X11)(X12)(X13)(X14)k(X15)(X16), wherein (X1) is present or absent and, if present, is an amino acid; (X2) is an amino acid with a side chain; (X3) is an amino acid and n is between 0 and 3, preferably 0 or 1 and most preferably 0; (X4) is an aliphatic L-amino acid or a cyclic L-amino acid, preferably L, P or an aromatic L-amino acid, and most preferably an aromatic L-amino acid; (X5) is an amino acid; (X6) is an amino acid and m is between 0 and 3, preferably 0 or 1 and most preferably 0; (X7) is an amino acid with a side chain; (X9) is an amino acid and l is between 0 and 3, preferably 0 or 1 and most preferably 0; (X10) is an amino acid; (X11) is an amino acid, preferably Q; (X12) is a hydrophobic L-amino acid, preferably an aliphatic L-amino acid, and is most preferably L; (X13) is an amino acid; (X14) is an amino acType: ApplicationFiled: April 27, 2016Publication date: May 3, 2018Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Christian HEINIS, Vanessa BAERISWYL, Simon MIDDENDORP, Jonas Alfred Karl WILBS
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Patent number: 9950149Abstract: Provided herein is a cell encapsulation device comprising an internal chamber suitable for holding biological agents, wherein the internal chamber is disposed between a first semipermeable layer and a second semi-permeable layer, and the first and second semi-permeable layers are mounted on a supporting frame surrounding a perimeter of the internal chamber; wherein the supporting frame comprises a first frame element and a second frame element, and the first and second frame elements co-operate to position the first and second semipermeable layers at a predetermined separation distance between the layers.Type: GrantFiled: April 24, 2013Date of Patent: April 24, 2018Assignees: NESTEC S.A., ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Aurelien Lathuiliere, Nicolas Bouche, Bernard Schneider
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Patent number: 9953438Abstract: A system for automated annotation of images and videos points a mobile device towards an object of interest, such as a building or landscape scenery, for the device to display an image of the scene with an annotation for the object. An annotation can include names, historical information, and links to databases of images, videos, and audio files. Different techniques can be used for determining positional placement of annotations, and, by using multiple techniques, positioning can be made more precise and reliable. The level of detail of annotation information can be adjusted according to the precision of the techniques used. A trade-off can be taken into account between precision of annotation and communication cost, delay and/or power consumption. An annotation database can be updated in a self-organizing way. Public information as available on the web can be converted to annotation data.Type: GrantFiled: February 25, 2011Date of Patent: April 24, 2018Assignee: Ecole Polytechnic Federale De Lausanne (EPFL)Inventors: Luciano Sbaiz, Martin Vetterli
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Patent number: 9949056Abstract: A method for modifying an audio scene and/or presenting additional information relevant to the audio scene includes capturing audio signals from the audio scene with a plurality of microphones; outputting an audio signal with a plurality of acoustical transducers; processing the captured audio signals, where the processing comprises one or more of filtering, equalization, echoes processing, and beamforming; separating and distinguishing audio signal sources using the processed audio signals; selecting at least one separated audio signal source; classifying the at least one selected separated audio signal source; retrieving additional information related to the classified audio signal source; and presenting the additional information in a perceptible form.Type: GrantFiled: December 23, 2015Date of Patent: April 17, 2018Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)Inventors: Juri Ranieri, Ivan Dokmanic, Martin Vetterli
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Patent number: 9949050Abstract: The present invention concerns a method for calibrating an array of receivers (rj), each receiver being configured for receiving a signal transmitted by at least one transmitter (si), and echoes of the transmitted signal as reflected by one or more reflective surfaces (w), said method comprising the following steps: sorting said echoes, by assigning each echo to a reflective surface or to a combination of reflective surfaces (w) calibrating said array of receivers (rj) based on said sorting.Type: GrantFiled: March 3, 2014Date of Patent: April 17, 2018Assignee: Ecole Polytechnic Federale De Lausanne (EPFL)Inventors: Ivan Dokmanic, Laurent Daudet, Martin Vetterli
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Patent number: 9930523Abstract: The invention is related to a method allowing a prover holding a secret key (x) to prove its identity to a verifier and to prove to this verifier that he is within a predetermined distance of this verifier, said method comprising an initialization phase during which: the prover picks a first nonce (Np) and communicates this first nonce to the verifier; the verifier picks a first random vector (a), a leak function (L?), and a second nonce (Nv); the verifier uses said leak function (L?) to compute a modified secret (x?) depending on the leak (L?(x)) of said secret; the verifier transmits to said prover said leak function and said second nonce; the prover retrieves said first random vector and said modified secret, wherein said first random vector and said modified secret are used by said prover for computing responses (ri) to challenges (ci).Type: GrantFiled: March 10, 2015Date of Patent: March 27, 2018Assignee: Ecole Polytechnique Federale De Lausanne (EPFL)Inventors: Serge Vaudenay, Ioana C. Carlson
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Publication number: 20180079906Abstract: The application provides fluorescent dyes, which are cyanine dyes that incorporate additional aza moieties in the indolenium heterocycles and/or in the methine chains connecting them. Symmetrical and unsymmetrical chemically reactive azacyanine dyes are described for conjugation, as well as their bioconjugates for in-vitro and in-vivo assays and fluorescence imaging.Type: ApplicationFiled: September 22, 2016Publication date: March 22, 2018Applicant: Ecole Polytechnique Fédérale de Lausanne (EPFL)Inventors: Riccardo Sinisi, Alma Rosa Morales Morales, Elena A. Dubikovskaya, Rajendra Singh
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Patent number: 9919138Abstract: 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: GrantFiled: August 1, 2016Date of Patent: March 20, 2018Assignee: Ecole Polytechnique Federale De lausanne (EPFL)Inventors: Tim Lenihan, Bruce Meadows
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Patent number: 9901645Abstract: 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: August 9, 2016Date of Patent: February 27, 2018Assignee: Ecole Polytechnique Fedrale de Lausanne (EPFL)Inventors: Jeffrey A. Hubbell, Stephan Kontos, Karen Y. Dane
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Patent number: 9901646Abstract: 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: August 9, 2016Date of Patent: February 27, 2018Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Jeffrey A. Hubbell, Stephan Kontos, Karen Y. Dane
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Patent number: 9897542Abstract: The present invention relates to an infrared absorption spectroscopy apparatus including an infrared transparent substrate comprising a first and second surface, an array of plasmonic nano-antennas arranged on the first surface of the infrared transparent substrate, a flow cell for holding a liquid to allow spectroscopy measurements in a liquid environment, the array of plasmonic nano-antennas being located inside the flow cell, an optical source providing an incident light probe signal incident on at least a part of the array of plasmonic nano-antennas via the second surface of the infrared transparent substrate, and an optical element to collect reflected light signal reflected by said part of the array of plasmonic nano-antennas.Type: GrantFiled: July 21, 2014Date of Patent: February 20, 2018Assignee: ECOLE POLYTECHNIQUE DEDERALE DE LAUSANNE (EPFL)Inventors: Ronen Adato, Hatice Altug