Abstract: A method for producing a multilayer structure includes the following steps: a) providing a first substrate, b) depositing a thick layer of a precursor formulation including a preceramic polymer filled with inorganic particles on the first substrate, c) providing a second substrate, d) adhesively bonding the thick layer and the second substrate, e) thinning the first substrate or the second substrate so as to obtain an active layer, f) applying a pyrolysis heat treatment so as to ceramize the preceramic polymer of the thick layer and to obtain a ceramic matrix composite material, the filler content and the nature of the inorganic particles being chosen so that the thick layer has a coefficient of thermal expansion which differs, at most, by 15% from that of the first substrate and from that of the second substrate.

Abstract: A method of manufacturing an optoelectronic device including at least one LED and at least one photodiode, including the following steps: a) forming a semiconductor support stack including at least one doped semiconductor layer; b) simultaneously forming, during a common epitaxy step, an active emission semiconductor stack of the LED and an active reception semiconductor stack of the photodiode; c) forming trenches delimiting first and second support pads; and d) porosifying the doped semiconductor layer in the first support pad without porosifying this layer in the second support pad, or porosifying the doped semiconductor layer in the second support pad without porosifying this layer in the first support pad.

Abstract: A photonic device including a substrate and a structure. The structure includes a support, an optical resonator fixed to the support, and a portion of a waveguide optically coupled to the resonator and fixed to the support. The structure is suspended above the substrate. The portion of the waveguide and the resonator are arranged on a same side of the support. The support is a first portion of a layer. A second portion of the layer is fixed to the substrate. The support is mechanically coupled to the second portion of the layer.

Abstract: An inertial sensor including a substrate, sense frames, drive frames configured to put into motion the sense frames, and a sense lever pivotably mounted around a rotation axis. The sense frames, drive frames and sense lever are connected to each other in such a way that when the inertial sensor is subjected to a rotational movement around the rotation axis, the first sense frame, the second sense frame and the sense lever respectively feature a first tilt ?1 a second tilt ?2 and a lever tilt ?s relatively to the device plane, and both ?1/?s and ?2/?s are lower than 0.1. The inertial sensor features strain gauges that get stressed when the lever rotates due to the motion of the sense frames.

Abstract: A reflector device that includes a support, a light source arranged to emit a principal light beam, N mirrors, partially transparent, assembled on the support, and delimited by a partially reflective front face, and a rear face, the mirrors are arranged from a first position to an Nth position, so that the principal light beam is incident on the front face of the mirror in the first position, and interacts successively, in the order, with each mirror to form a beam reflected by the front face and a beam transmitted by the rear face, the beam reflected by the front face of a mirror in a position i resulting from the reflection of the beam transmitted by the rear face of the mirror in position i?1.

Abstract: A device including a substrate; a first layer resting on the substrate, the first layer including a first portion and a second portion mobile with respect to each other; and a ring-shaped optical resonator defined in a second layer. The resonator includes a first portion fixed to a first anchor pad connected to the first portion of the first layer and a second portion fixed to a second anchor pad connected to the second portion of the first layer.

Abstract: The present description concerns a method of generation of a sequence of pseudo-random digital codes enabling to perform a permutation (3) of a first set of values (V) into a second set of values (Vp) based on said digital codes (CPos) representative of positions (j) of values (Vi) of the first set in the second set, including the steps of: generating, by successive iterations, a chain of numbers, called seed numbers, from an initial pseudo-random seed number (W0) by application of a first function (24,26) from a seed number to the next seed number; applying a second function to each seed number of the chain to obtain each position code (CPos(j)), the second function including at least one permutation (PERM) followed by a bijection (BIJ).

Abstract: The present invention concerns a method for confidentially processing the kinematic data of a vehicle, in particular a method for classifying this data in order to determine the driving style of the vehicle while respecting the confidentiality of the data in question. The data is encrypted by the vehicle by means of a symmetric encryption algorithm using a secret key generated by the vehicle. This secret key is encrypted by the vehicle by means of a homomorphic asymmetric encryption algorithm by using the public key of a vehicle service provider. The data encrypted by means of the secret key, and the homomorphically encrypted secret key, are transmitted by the vehicle to an access point that transcrypts them and transmits the homomorphically encrypted data to a calculation platform. The platform performs the confidential processing operation in the homomorphic domain and transmits the homomorphically encrypted results to the server of the vehicle service provider.

Abstract: The present description concerns a system comprising a processor and an SDMA circuit of direct transfer of a data sequence between a source memory circuit and a destination memory circuit, a sub-region of the source circuit comprising the elements of a data array, the SDMA decoding computing kernel information called BIT_PATTERN of an elementary data pattern to be transferred defined from an elementary array having a predefined size smaller than the size of said data array and intended to identify an elementary array window of said array, each element of the elementary array comprising a bit capable of taking a state “1” or “0” according to whether the element belongs or not to said pattern, the SDMA recovering the data of said array associated with elements of the BIT_PATTERN having their bit at “1”.

Abstract: A method for lowering a vehicle chassis to a required vertical position, the vehicle including only two sets of running gear, namely a front set of running gear and a rear set of running gear, each wheel of the sets of running gear being associated with a parking brake, the method including the following successive steps: when the chassis is in its high running position, actuating the parking brake only for all of the wheels of one of the two sets of running gear; lowering the chassis to its low position resting on the ground; and actuating the parking brake for all of the wheels of the other of the two sets of running gear.

Abstract: An automated system for controlling a patient's blood glucose, including a blood glucose sensor, a device for measuring a physical activity of the patient, and a processing and control unit, wherein: the processing and control unit is configured to generate, by convolution of a signal PA supplied by the device for measuring a physical activity of the patient with a decreasing mathematical function H, a signal IPA representative of the influence of the patient's physical activity on his/her insulin sensitivity; and the processing and control unit is configured to calculate, from a first patient-specific mathematical model fCR and taking into account signal IPA and from a single blood glucose value Gr measured by the sensor, a factor CR representative of the patient's insulin sensitivity.

Abstract: An automated system for controlling a patient's blood glucose, including a blood glucose sensor and a processing and control unit, wherein the processing and control unit is configured to calculate, from a first mathematical model fCR specific to the patient and taking into account a single blood glucose value Gr measured by the sensor, a factor CR representative of the patient's insulin sensitivity.

Abstract: A method determines a probe signal for acoustically characterising an electrochemical system, the probe signal being determined by an identification signal transmitted in a reference electrochemical system to induce a response from the reference electrochemical system.

Abstract: The present invention relates to a comb polymer comprising a main chain formed from 1-ethenyl- and/or 1-allyl-2,3,4,5,6-pentafluorobenzene monomers and polymeric side chains grafted in the para position of the pentafluorophenyl groups, in which said polymeric side chains are linked to said main chain by an oxygen atom, the molar grafting rate of polymeric side chains being greater than or equal to 50%. It also relates to a method for the preparation of such a comb polymer.

Abstract: A heterojunction electronic component includes a substrate; a heterojunction including a channel layer arranged on the substrate and a barrier layer arranged on the channel layer; a passivation layer arranged on the barrier layer; a field plate separated from the barrier layer by a portion of the passivation layer; and a floating region made from a p-doped semiconductor material, located in the barrier layer in vertical alignment with a flank of the field plate, the floating region having a thickness less than that of the barrier layer.

Abstract: A selection element including, in a first portion, a stack of amorphous layers, the thickness of each layer in the stack being smaller than or equal to 20 nm.

Abstract: A method includes establishing, for a given time, measurement biases allowing an error affecting raw measurements of pseudoranges separating a navigation unit from at least three beacons to be decreased, and estimating an external position of the navigation unit at the given time based on: beacon positions, corrected pseudorange measurements computed for the given time using established measurement biases, and a preceding external position of the navigation unit estimated for a time preceding the given time. The measurement biases are established without taking into account the external position of the navigation unit.

Abstract: An electrical impedance tomography method for the measurement of a body comprising a cylindrical part containing a fluid, the method comprising arranging a number of electrodes around a periphery of the cylindrical part of the body, simultaneously exciting each of the electrodes, each electrode being excited by a potential of a selected form, measuring the electrical properties of the body using electrodes, and processing the data from measuring step so as to obtain a signed data matrix representative of an image.

Abstract: Method for porosifying mesas comprising the following steps: providing a structure (100) comprising a substrate (110) covered with (Al,In,Ga)N/(Al,In,Ga)N mesas (120), the substrate (110) comprising a support layer (114), a first layer of non-doped GaN (111) and a second layer of doped GaN (112), the mesas (120) comprising a third layer of heavily doped (Al,In,Ga)N(123) and a fourth layer of non-doped or lightly doped (Al,In,Ga)N(124), a part (112b) of the second layer (112) of doped GaN being extended in the mesas (120) or a part (123a) of the third layer (123) of heavily doped (Al,In,Ga)N being extended in the base substrate (110), immersing the structure (100) and a counter-electrode in an electrolytic solution, applying a voltage or a current between the structure (100) and the counter-electrode so as to porosify the third layer (123) of heavily doped (Al,In,Ga)N of the mesas (120).

Abstract: An image sensor including a plurality of pixels divided into elementary groups, each elementary group including a plurality of adjacent pixels arranged in a matrix, in rows and columns, each elementary group including first pixels, second and third visible image pixels sensitive in different wavelength ranges and fourth depth image pixels, wherein each row of each elementary group includes at least a fourth pixel.