Abstract: A multimodal haptic device operating as a closed-loop system, the device including a pipeline configured to allow a closed-loop flow of a fluid medium, a manifold operatively connected to the pipeline, the manifold having a pump and a valve to control and regulate a flow of the fluid medium along the pipeline, and a display unit operatively connected to the pipeline, the display unit having a tactile display and a valve operatively connected to the tactile display for regulating an efflux of the fluid medium from the tactile display into the pipeline.
Type:
Grant
Filed:
February 5, 2016
Date of Patent:
July 11, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Inventors:
Simon Gallo, Giulio Rognini, Tobias Lukas Bützer
Abstract: A NOC comprises a die having a cache and a core area, a plurality of core tiles arranged in the core area in a plurality of subsets, at least one cache memory bank arranged in the cache area, whereby the at least one cache memory bank is distinct from each of the plurality of core files. The NOC further comprises an interconnect fabric comprising a request tree to connect to a first cache memory bank of the at least one cache memory bank, each core tile of a first one of the subsets, the first subset corresponding to the first cache memory bank, such that each core tile is connected to the first cache memory bank only, and a reply tree to connect the first cache memory bank to each core tile of the first subset.
Type:
Grant
Filed:
December 4, 2012
Date of Patent:
July 11, 2017
Assignee:
Ecole Polytechnique Fédérale de Lausanne (EPFL)
Inventors:
Babak Falsafi, Boris Grot, Pejman Lotfi Kamran
Abstract: The present invention relates to compounds of formula (I) based on DPP moiety being useful as metal-free organic sensitizers or dyes of type D-?-A in electrochemical or optoelectronic devices, their use as sensitizer or dye and an electrochemical or optoelectronic device comprising a compound of the invention.
Type:
Grant
Filed:
August 14, 2013
Date of Patent:
July 4, 2017
Assignee:
Ecole Polytechnique Federale de Lausanne (EPFL)
Inventors:
Thomas Wesley Holcombe, Jun Ho Yum, Mohammad Khaja Nazeeruddin, Michael Graetzel
Abstract: A glazing for daylighting and seasonal thermal control, the glazing including a pane defined between an outside-oriented interface and an inside-oriented interface, the pane comprising a first component and a second component, wherein the first component has a parabolic reflective surface with a focus point located on the second component.
Type:
Grant
Filed:
August 7, 2013
Date of Patent:
July 4, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Abstract: A method for transforming a tautology check of an original logic circuit into a contradiction check of the original logic circuit and vice versa comprises interpreting the original logic circuit in terms of AND, OR, MAJ, MIN, XOR, XNOR, INV original logic operators; transforming the original circuit obtained from the interpreting, into a dual logic circuit enabled for a checking of contradiction in place of tautology and vice versa, by providing a set of switching rules configured to switch each respective one of the original logic operators INV, AND, OR, MAJ, XOR, XNOR, MIN into a respective switched logic operator INV, OR, AND, MAJ, XNOR, XOR, MIN; and complementing outputs of the original circuit by adding an INV at each output wire. The method further provides testing in parallel the satisfiability of the original logic circuit, and the satisfiability of the dual logic circuit with inverted outputs. Responsive to one of the parallel tests finishing, the other parallel test is caused to also stop.
Type:
Grant
Filed:
September 11, 2015
Date of Patent:
June 20, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Inventors:
Luca Gaetano Amarú, Pierre-Emmanuel Julien Marc Gaillardon, Giovanni De Micheli
Abstract: Using a transformation based, at least in part, on a non-simple orthogonal matrix, data may be transmitted over a data bus in a manner that is resilient to one or more types of signal noise, that does not require a common reference at the transmission and acquisition points, and/or that has a pin-efficiency that is greater than 50% and may approach that of single-ended signaling. Such transformations may be implemented in hardware in an efficient manner. The transformation may be combined with methods from forward error correction to lower the required transmission power.
Type:
Grant
Filed:
June 6, 2011
Date of Patent:
May 30, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Abstract: Method for processing a circular light field comprising the step of receiving or storing a circular light field matrix, wherein the circular light field matrix comprises pixel data for different circumferential angles and for different incidence angles, wherein each circumferential angle represents one intersection point of a light ray with a circle, and each incidence angle represents an angle of incidence of the light ray in the plane of the circle at the one intersection point; and the step of determining a sub set of pixel data of the circular light field matrix relating to a location by determining for each different circumferential angle an incidence angle related to said location.
Type:
Application
Filed:
November 20, 2015
Publication date:
May 25, 2017
Applicant:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Inventors:
Zhou XUE, Martin VETTERLI, Loic Arnaud BABOULAZ
Abstract: The invention describes a method and a microscopy system for imaging and analyzing stochastically and independently blinking point-like emitters. A multiple-order cumulants analysis in conjunction with an established blinking model enables the extraction of super-resolved environment-related parameter maps, such as molecular state lifetimes, concentration and brightness distributions of the emitter. In addition, such parameter maps can be used to compensate for the non-linear brightness and blinking response of higher-order cumulant images—used for example in Super-resolution Optical Fluctuation Imaging (SOFI)—to generate a balanced image contrast. Structures that otherwise would be masked by brighter regions in the conventional cumulant image become samples using spectral cross-cumulants.
Type:
Grant
Filed:
March 31, 2012
Date of Patent:
May 23, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Inventors:
Stefan Geissbuehler, Claudio Dellagiacoma, Matthias Geissbuehler, Theo Lasser, Marcel Leutenegger
Abstract: An ocular drainage system is provided for treating diseases that produce elevated intraocular pressures, such as glaucoma, wherein the system includes an implantable device and an external control unit. The implantable device includes a non-invasively adjustable valve featuring at least one deformable tube and a disk rotatably mounted within a housing, such that rotation of the disk using the external control unit causes the disk to apply a selected amount of compression to the deformable tube, thereby adjusting the fluidic resistance of the deformable tube and regulating the intraocular pressure.
Type:
Grant
Filed:
August 5, 2015
Date of Patent:
May 23, 2017
Assignee:
Ecole Polytechnique Federale De Lausanne (EPFL)
Abstract: Optic fiber sensor characterized in that the sensing fiber is provided with a continuous Bragg grating covering the entire fiber length which is dedicated to sensing and along which spatially resolved measurements are performed.
Type:
Grant
Filed:
December 19, 2012
Date of Patent:
May 16, 2017
Assignee:
Ecole Polytechnique Fédérale de Lausanne (EPFL)
Abstract: The present invention describes methods and apparatuses for creating superposition shape images by superposed base and revealing layers of lenslet gratings. The superposition shape images form a message recognizable by a human observer or by an image acquisition and computing device such as a smartphone. The superposition shape images may be created by different superposition techniques ranging from 1D moiré, 2D moiré and level-line moiré superposition techniques to lenticular image and phase shift superposition techniques. Moiré superposition techniques enable creating superposition shape images at different apparent depth levels. Applications comprise the protection of documents and valuable articles against counterfeits, the creation of eye-catching advertisements as well as the decoration of buildings and exhibitions.
Type:
Application
Filed:
October 27, 2015
Publication date:
April 27, 2017
Applicant:
Ecole Polytechnique Fédérale de Lausanne (EPFL)
Inventors:
Roger David Hersch, Thomas Walger, Valentin Flauraud, Juergen Brugger, Théophane Besson
Abstract: A device for determining a bidirectional reflectance distribution function of a subject, including a light source for producing an incident light that is directed onto a subject at a predetermined zenith angle and at a predetermined azimuth angle, an element for displacing the light source at any location on the periphery of a hemispherical area centered on the subject, an element for measuring the bidirectional reflectance distribution function of the subject from one fixed location that is preferably aligned with a normal direction defined by the subject, a control unit adapted to control the element for displacing and/or the element for measuring. The element for displacing includes an arc-shaped arm at one end fixedly connected to the light source and slideably connected to a first support to adjust the zenith angle, and an element for pivoting the first support about the normal direction to permit adjustment of the azimuth angle.
Type:
Grant
Filed:
December 3, 2014
Date of Patent:
April 18, 2017
Assignee:
Ecole Polytechnique Federale de Lausanne (EPFL)
Inventors:
Loïc Arnaud Baboulaz, Gaël Georges Soudan, Martin Vetterli
Abstract: A VTOL (vertical take-off and landing) aerial flying vehicle comprising an inner frame, a gimbal system and an outer frame, the inner frame comprising a propulsion system and a control system. The propulsion system being able to generate a lift force. The control system being able to control the orientation of the inner frame. The gimbal system connecting the inner frame to the outer frame with at least two rotation axis allowing rotation freedom between the outer frame to rotate independently from the inner frame.
Type:
Grant
Filed:
June 11, 2014
Date of Patent:
April 4, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Abstract: A method of local feature identification comprises retrieving data representing a lightfield, forming an epipolar volume (V) from the retrieved data, applying a transform to epipolar planes retrieved from the epipolar volume, so as to represent the epipolar planes in a new space, identifying a plurality of epipolar lines, and identifying local features (fp) based on at least some of the epipolar lines.
Type:
Grant
Filed:
November 1, 2013
Date of Patent:
April 4, 2017
Assignee:
Ecole Polytechnique Federale de Lausanne (EPFL)
Inventors:
Alireza Ghasemi, Laurent Rime, Martin Vetterli
Abstract: A computer implemented method for encrypting one or more files and wrapping them in an HTML document. The HTML document contains the encrypted files, the necessary code to decrypt the files, as well as user interface code to receive a passphrase input from a user. The HTML document can be opened using any modern web browser, to obtain the original files using the same passphrase with which the encryption was performed. This offers a convenient way of sharing encrypted files via email or cloud file sharing services using a platform independent file format (without having to install any additional software).
Type:
Grant
Filed:
March 16, 2015
Date of Patent:
March 28, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Inventors:
Thomas Lochmatter, Radhakrishna Shri Venkata Achanta
Abstract: The present invention concerns semiconductor devices comprising a source electrode, a drain electrode and a semiconducting layer consisting of a single or double 2-dimensional layer(s) made from one of the following materials: MoS2, MoSe2, WS2, WSe2, MoTe2 or WTe2. Replacing a stack by only one or two 2-dimensional layer(s) of MoS2, MoSe2, WS2, or WSe2, MoTe2 or WTe2 provides an enhanced electrostatic control, low power dissipation, direct band gap and tunability.
Type:
Grant
Filed:
January 4, 2012
Date of Patent:
March 28, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Abstract: The invention provides a method for coping with an unintentional islanding of an electrical distribution grid within a Commelec-type framework for the real-time control of micro-grids, of Resource Agents (RA) controlled by Grid Agents (GA), comprising at least maintain at any time before the unintentional islanding occurs a rating of all resource agents controlled by a same grid agent in view of their ability to be a slack resource, by computing the rating based on a power availability and on a state-of-energy of each resource, the state-of-energy quantifying an amount of energy that may be withdrawn from a potential slack irrespectively of a PQ profile, whereby the PQ profile describes bounds for active and reactive power that a resource can inject or absorb; and a shedding list of all the resources that have to be shed if a current best candidate slack resource is selected, the current best candidate slack resource being the slack resource having the best rating of all resources as determined in the step of
Type:
Application
Filed:
September 6, 2015
Publication date:
March 9, 2017
Applicant:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Inventors:
Mario PAOLONE, Jean-Yves LE BOUDEC, Andrey BERNSTEIN, Lorenzo Enrique REYES CHAMARRO
Abstract: The present invention relates to an apparatus for imaging a page of a book or other similar document comprising: a table defining a support plane, the book being disposed on the table such that the page to image is substantially parallel to the support plane and an other page of the book is orientated at an angle ? relative to the support plane, ? being between 0° and 70°; means for displacing the table parallel to the support plane along a longitudinal direction and a lateral direction and/or perpendicular to the support plane along a normal direction; a plurality of light sources, each light source producing an incident light and directing said incident light onto an inspection area of the page to image at a predetermined zenith angle ?i and at a predetermined azimuth angle ?i; means for sensing the light reflected by the page to image; at least one control unit adapted to control said displacing means, said light sources and said sensing means; wherein the light sources are fixedly connected to a ma
Type:
Grant
Filed:
July 17, 2015
Date of Patent:
March 7, 2017
Assignee:
Ecole Polytechnique Federale de Lausanne (EPFL)
Abstract: The present invention relates to a method of producing a FinFET sensor device comprising the steps of: providing a silicon substrate; etching the silicon substrate to produce at least one upwardly extending Fin structure externally protruding from a surface of the silicon substrate; depositing a spacer layer on the at least one Fin structure; anisotropically etching a section of the spacer layer to expose the underlying silicon; isotropic etching of the exposed silicon surrounding the at least one Fin structure; and carrying out oxidation of the silicon surrounding the at least one Fin structure to produce a Fin structure of silicon inside the at least one Fin structure. The present invention also relates to FinFET sensor devices produced by the above method.
Type:
Grant
Filed:
March 19, 2014
Date of Patent:
February 14, 2017
Assignee:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Abstract: 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:
Grant
Filed:
February 24, 2012
Date of Patent:
January 31, 2017
Assignee:
Ecole Polytechnique Federale de Lausanne (EPFL)
Inventors:
Julian Burschka, Florian Kessler, Etienne Baranoff, Mohammad Khaja Nazeeruddin, Michael Graetzel