Centre National De La Recherche Scientifique

Sorbonne Université

Institut National De La Sante Et De La Recherche Medicale

Gensight Biologics

Other

Assistance Publique-hopitaux De Paris

Université Pierre Et Marie Curie (Paris 6)

Université Paris—sud

Centre National De La Recherche Scientifique-cnrs

Inserm

Filix

Guillaume Chenegros

Ryad Benosman

Jose-Alain Sahel

Nicolas Libert

Joël Chavas

Serge Picaud

Siohoi Ieng

Benjamin R Benosman

Christoph Posch

Xavier Lagorce

Charlie Galle

Sio-Hoi Ieng

Stéphane Carras

Sihem Kime

Stephane Carras

Francesco Gallupi

Kevin Gehere

Kevin Arth

Germain Haessig

Sio Hoi Ieng

Jacques Durenteau

Anatole Harrois

José-Alain Sahel

Benjamin Benosman

The sensory substitution system includes a portable matrix of exciters that can be worn by a user in such a way that the exciters are placed against the skin of a user, as well as a control circuit for the exciters of the matrix. An asynchronous signal source provides the control circuit with an asynchronous signal representative of visual information organised according to a matrix of pixels. This asynchronous signal includes, for each pixel, successive events associated in an asynchronous manner with the pixel.

Sensory substitution system using asynchronous tactile stimulation

The invention concerns a devicefor illuminating an objectwith a controlled light intensity, the light intensity being controlled when the light intensity fulfills a plurality of conditions to be fulfilled, the plurality of conditions comprising a condition relative to the intensity at a given time and a condition relative to the dose during a period of time.

Device for illuminating an object with a controlled light intensity and associated method

The present invention concerns an objective () for imaging an object field of view of 10&#xb0; onto an imager (), the objective () comprising in order of the propagating direction: &#x2014;a first lens unit (U) comprising several lenses, the first lens unit (U) having a positive first focal length and a first dimension inferior to 15 millimeters, &#x2014;a bending mirror (M) adapted to bend at a 90&#xb0; angle, &#x2014;a liquid lens (LL), and &#x2014;a second lens unit (U) comprising several lenses, the second lens unit (U) having a positive second focal length and a second dimension, the ratio between the first focal length and the second focal length being comprised between 1.0 and 2.0 and the ratio between the first dimension and the second dimension being superior or equal to 2.

Objective, camera and system adapted for optogenetics comprising such objective

The present invention relates to a tourniquet () comprising: &#x2022; a support () for surrounding a first portion of a limb, &#x2022; an elastic sleeve () to be held in a stretched position around the support (), the support () preventing contraction of the elastic sleeve (), &#x2022; a grip element () which is movable relative to the support (), &#x2022; a drive element () for driving the elastic sleeve (), when the grip element () is moved manually relative to the support (), from its stretched position around the support to a blood vessel constricting position wherein the elastic sleeve () surrounds a second portion of the limb, adjacent to the first portion of the limb but not surrounded by the support (), in such a way that the elastic sleeve () can contract by resilient return, and thus compress the second portion of the limb.

Tourniquet with elastic sleeve

The present invention concerns a medical device () intended to be worn by a human wearer, the medical device () defining a first area () and a second area (), each area being intended to be positioned in front of a respective eye of the wearer. The medical device () comprises a frame (), comprising a rear shell (). The rear shell () defines a hole () facing the first area () and the rear shell () is opaque facing the second area (). The medical device () also comprises an optical module () in the first area (). The optical module () comprises a light source () and an optical system (). The optical module () is arranged to send a light beam through the hole (). The medical device () further comprises an electronic circuitry (), adapted to command the optical module ().

Medical device intended to be worn in front of the eyes

Disclosed is a method for pattern recognition in a plurality of received time signals of different types, the method includes: b) for each received signal, creating an asynchronous time signal including events; c) for each created asynchronous signal, creating an activity profile of the asynchronous signal which decreases as a function of the time elapsed since the last event of the asynchronous signal; d) for a given time t: d1) determining a context defined as the set of activity profiles of the created asynchronous signals, d2) determining a standard context among predetermined standard contexts, having a minimum distance to the context determined in step d1, d3) determining the pattern as a function of the determined standard context.

Method for pattern recognition in a plurality of signals

Disclosed is an imaging device including a light source arranged so as to generate an optical signal, an optical support coupled to the light source and arranged so as to project a luminous excitation signal with a substantially constant light intensity, from the light source to a body to be observed during the use of the device, and an asynchronous camera coupled to the optical support and designed so as to generate a signal including, for each pixel of a first pixel matrix, a signal sequence representing asynchronous events corresponding to variations of the light backscattered by the body to be observed for the pixel.

Imaging device and method

A method of controlling the display of images in the form of a pixel array, includes for a pixel of the array, asynchronous information representing events concerning the pixel is received, a first activation of the pixel is actuated at an activation time determined by a first event of the asynchronous information, and at least a second activation of the pixel is actuated in order to repeat the first activation of the pixel at respective times defined by a refresh sequence.

Display control method and device for implementing said method

Disclosed is a method for processing asynchronous signals generated by a light sensor, the sensor having a matrix of pixels, the method including: &#x2014;receiving the asynchronous signals, each signal being associated with a pixel in a group of pixels in the matrix, each signal including successive events issued by the associated pixel; &#x2014;upon an occurrence of an event in one of the asynchronous signals, updating an integration value associated to the group by adding an additive value to the integration value; &#x2014;if the integration value is greater than a predetermined threshold, generating an event in an outputted asynchronous signal.

Method for downsampling a signal outputted by an asynchronous sensor

A device for displaying an image sequence in the form of a pixel matrix, includes a control unit coupled to a projector. The control unit includes an input interface designed to receive asynchronous information representing, for each pixel of the matrix, events concerning the pixel, and a processor designed to control the activation of each pixel of the matrix at moments determined by the respective events indicated by the asynchronous information for the pixel. The projector is disposed on a support so as to illuminate the light receptors of the eye when the device is in use and is designed to project a light flux corresponding to the pixels activated by the control unit.

Device for displaying an image sequence and system for displaying a scene

Growing community of inventors

Trappes, France

Guillaume Chenegros