公开(公告)号：US20240077411A1

公开(公告)日：2024-03-07

申请号：US18027679

申请日：2021-09-27

Applicant: IMEC VZW ,  IMEC USA NANOELECTRONICS DESIGN CENTER, INC. ,  Universiteit Gent

Inventor： Giorgio Signorello ,  Orges Furxhi ,  Joris Van Campenhout ,  Anton Vasiliev ,  Olivier Rousseaux

IPC: G01N21/27

CPC classification number: G01N21/274 ,  G01N2201/0636

Abstract: The present disclosure relates to an optical alignment compensation system for a gas detection system, in particular, to an integrated alignment compensation system for an open-path gas sensing system. The optical alignment compensation system of the disclosure is able to compensate for unwanted drifts of a retroreflector. The optical alignment system comprises an array of transceiver pairs, wherein each transceiver pair is configured to transmit and receive light with an optical spectrum in an absorption region of a gas to be detected. Further, it comprises a retroreflector arranged at a nominal position and configured to reflect the light. Further, it comprises an optical element arranged and configured to direct the light from at least one of the transceiver pairs along an optical path through the gas to the retroreflector, to receive the light reflected by the retroreflector along the optical path, and to direct the reflected light to the respective transceiver pair. Further, it comprises a control unit configured to select one of the transceiver pairs for transmitting and receiving the light, wherein the control unit is configured to select the transceiver pair that receives the reflected light with the highest signal response.

公开(公告)号：US11576623B2

公开(公告)日：2023-02-14

申请号：US16716991

申请日：2019-12-17

Applicant: IMEC VZW ,  STICHTING IMEC NEDERLAND ,  REGENTS OF THE UNIVERSITY OF MINNESOTA

Inventor： Dwaipayan Biswas ,  Luke Everson ,  Mario Konijnenburg ,  Christiaan Van Hoof ,  Nick Van Helleputte

IPC: A61B5/024 ,  A61B5/327 ,  G06N3/04 ,  G06N3/08 ,  A61B5/00

Abstract: A method of generating a model for generating a synthetic electrocardiography (ECG) signal comprises: receiving subject-specific training data for machine learning, said training data comprising a photoplethysmography (PPG) signal acquired from the subject and an ECG signal acquired from the subject, wherein the ECG signal provides a ground truth of the subject for associating the ECG signal with the PPG signal; using associated pairs of a time-series of the PPG signal and a corresponding time-series of the ECG signal as input to a deep neural network, DNN; and determining, through the DNN, a subject-specific model relating the PPG signal of the subject to the ECG signal of the subject for converting the PPG signal to a synthetic ECG signal using the subject-specific model.

公开(公告)号：US20220255554A1

公开(公告)日：2022-08-11

申请号：US17590211

申请日：2022-02-01

Applicant: IMEC VZW ,  KATHOLIEKE UNIVERSITEIT LEUVEN ,  Stichting IMEC Nederland

Inventor： Qiuyang LIN ,  Nick VAN HELLEPUTTE ,  Roland VAN WEGBERG ,  Shuang SONG

IPC: H03M1/06

Abstract: An analog-to-digital converter, ADC, circuitry, comprises: an integrator connected to a capacitor, the integrator being configured to switch between integrating an analog input signal for ramping an integrator output and integrating a reference input signal for returning integrator output towards a threshold; a comparator for comparing integrator output to the threshold; and a timer for determining a time duration during which the reference input signal is integrated, the time duration providing a digital representation of an analog input signal value; the ADC circuitry further comprising a feedforward noise shaping loop configured to store a quantization error signal based on digitizing a first sample, the comparator being configured to receive a feedforward noise shaping signal for changing the threshold for digitizing a later sample of the analog input signal following the first sample.

公开(公告)号：US11350866B2

公开(公告)日：2022-06-07

申请号：US16710132

申请日：2019-12-11

Applicant: STICHTING IMEC NEDERLAND ,  IMEC VZW

Inventor： Roland Van Wegberg ,  Wim Sijbers

IPC: A61B5/282 ,  A61B5/00 ,  H03F3/45 ,  A61B5/30

Abstract: A read-out circuitry for acquiring a multi-channel biopotential signal, comprises: a plurality of read-out signal channels, each receiving an input signal from a unique signal electrode; a reference channel receiving a reference signal from a reference electrode; wherein each read-out signal channel and the reference channel comprises a channel amplifier connected to receive the input signal in a first input node and with an output node connected to a second input node via a channel feedback loop; wherein each signal channel amplifier comprises a capacitor between the second input nodes of the signal channel amplifier and the reference channel amplifier, and wherein each signal channel feedback loop and the reference channel feedback loop comprise a filter.

公开(公告)号：US20220100941A1

公开(公告)日：2022-03-31

申请号：US17449383

申请日：2021-09-29

Applicant: IMEC vzw ,  Stichting IMEC Nederland

Inventor： Francky Catthoor ,  Jan Stuijt ,  Sandeep Pande

IPC: G06F30/343

Abstract: The present disclosure relates to a memory device comprising a memory array and a periphery circuitry configured to read data from and/or write data to the memory array, wherein the periphery circuitry comprises a programmable circuitry causing the memory device to access data stored in the memory array in accordance with manifest loop instructions. The programmable circuitry comprises a control logic configured to control the operation of the periphery circuitry in accordance with a set of parameters derived from the manifest loop instructions. The present disclosure further relates to a method for controlling the operation of a memory device and to a processing system comprising the memory device.

公开(公告)号：US20220015712A1

公开(公告)日：2022-01-20

申请号：US17376543

申请日：2021-07-15

Applicant: IMEC VZW ,  Stichting IMEC Nederland

Inventor： Roland Van Wegberg ,  Nick Van Helleputte

IPC: A61B5/00 ,  A61B5/308 ,  A61B5/31 ,  A61B5/313

Abstract: The disclosure includes a biosignal monitoring system for reducing a motion artifact from a biopotential electrical signal input, including a signal processing module, a motion artifact extraction module, and a subtraction module. The motion artifact extraction module and the signal processing module receive the biopotential electrical signal input and the subtraction module receives an extracted signal from an output of the motion artifact extraction module and a biopotential electrical signal from an output of the signal processing module. The subtraction module subtracts the extracted signal from the biopotential electrical signal. The motion artifact extraction module is an analog domain electronic circuit and includes a filter network configured for attenuating differential mode signals of the biopotential electrical signal input from a first frequency, and passing the motion artifact signal from the biopotential electrical signal input up to a second frequency at the output of the motion artifact extraction module.

公开(公告)号：US11160500B2

公开(公告)日：2021-11-02

申请号：US16224474

申请日：2018-12-18

Applicant: IMEC VZW ,  Katholieke Universiteit Leuven, KU LEUVEN R&D ,  Stichting IMEC Nederland

Inventor： Elena Smets ,  Emmanuel Rios Velazquez ,  Giuseppina Schiavone ,  Walter De Raedt ,  Christiaan Van Hoof

IPC: A61B5/00 ,  G16H50/20 ,  G06N20/00 ,  A61B5/16

Abstract: Disclosed herein is a system for determining a subject's stress condition. The system includes a stress test unit configured for: receiving features defining the subject and physiological signals sensed from the subject when performing a relaxation and a stressful test task; extracting normalization parameters from the physiological signals; and identifying stress-responsive physiological features. The system also includes a storage unit configured for: storing a plurality of stress models; and storing the subject's features, normalization parameters, and the stress-responsive physiological features. The system also includes a stress detection unit configured for: selecting a stress model from the plurality of stress models based on the subject's features and the stress responsive physiological features; estimating a specific stress condition based on the stress model, stored subject's features, normalization parameters, and physiological signals that apply to the selected stress model; and providing a stress value representative of the subject's stress condition.

公开(公告)号：US11092886B2

公开(公告)日：2021-08-17

申请号：US15979827

申请日：2018-05-15

Applicant: IMEC VZW ,  Imec USA Nanoelectronics Design Center

Inventor： Marina Timmermans ,  Emily Gallagher ,  Ivan Pollentier ,  Hanns Christoph Adelmann ,  Cedric Huyghebaert ,  Jae Uk Lee

IPC: G03F1/62 ,  G03F1/64

Abstract: The present disclosure relates to a method for forming a pellicle for extreme ultraviolet lithography, the method comprising: forming a coating of a first material on a peripheral region of a main surface of a carbon nanotube pellicle membrane, the membrane including a carbon nanotube film, arranging the carbon nanotube pellicle membrane on a pellicle frame with the peripheral region facing a support surface of the pellicle frame, wherein the support surface of the pellicle frame is formed by a second material, and bonding together the coating of the carbon nanotube pellicle membrane and the pellicle support surface by pressing the carbon nanotube pellicle membrane and the pellicle support surface against each other. The present disclosure relates also relates to a method for forming a reticle system for extreme ultraviolet lithography.

公开(公告)号：US20210000405A1

公开(公告)日：2021-01-07

申请号：US16920437

申请日：2020-07-03

Applicant: IMEC VZW ,  Katholieke Universiteit Leuven ,  Stichting IMEC Nederland

Inventor： Elena SMETS ,  Emmanuel RIOS VELAZQUEZ ,  Giuseppina SCHIAVONE

IPC: A61B5/16 ,  H04W4/38 ,  A61B5/00 ,  A61B5/0205 ,  A61B5/0476 ,  A61B5/0488 ,  A61B5/0496 ,  A61B5/0402

Abstract: The present invention relates to a system for estimating a stress condition of an individual, the system comprising a mobile device and a network unit, the mobile device being connected to the network unit and to one or more sensors, the mobile device comprising circuitry configured to: for each occasion of a plurality of occasions: measure a set of physiological parameters using the one or more sensors, and transmit first data relating to the set of physiological parameters to the network unit; and prompt the individual to input a perceived stress-level for the occasion via a user interface of the mobile device, and transmit second data relating to the perceived stress-level to the network unit.

公开(公告)号：US10722123B2

公开(公告)日：2020-07-28

申请号：US15373322

申请日：2016-12-08

Applicant: IMEC vzw ,  Stichting IMEC Nederland

Inventor： Yao-Hong Liu ,  Marco Mercuri

IPC: A61B5/0205 ,  A61B5/05 ,  A61B5/113 ,  A61B5/08 ,  A61B5/00 ,  A61B5/024

Abstract: A method and system for detecting at least one of a heart rate and a respiratory rate of a subject are disclosed. In one aspect, the method includes transmitting a signal towards the subject and receiving a reflected signal from the subject being Doppler-shifted due to at least one of the heart rate and the respiratory rate. The method also includes providing the reflected signal to a first input of a phase comparator, providing an adjustible reference signal to a second input of the phase comparator, and generating an output signal by the phase comparator based on the reflected signal and the reference signal. The method includes varying, by the reference signal generator, at least one of a phase and a frequency of the adjustable reference signal based on the output signal of the phase comparator to track a phase of the reflected signal.