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Alexandre Schmid

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Related publications (158)

Page 6 of 8

In-Vivo Validation of a Compact Inductively-Powered Neural Recording Interface

Alexandre Schmid, Catherine Dehollain, Mahsa Shoaran, Gürkan Yilmaz

2014

Modeling Stressed MOS Oxides Using a Multiphonon-Assisted Quantum Approach—Part II: Transient Effects

Yusuf Leblebici, Alexandre Schmid, Davide Garetto

Multifrequency charge pumping analysis has been performed using a multiphonon-assisted charge trapping model in the view of analyzing the oxide region in energy and position that can be characterized using charge pumping (CP) characterization. Transient ph ...

Institute of Electrical and Electronics Engineers2012

Three-Dimensional Silicon-based MEA with High Spatial Resolution

Yusuf Leblebici, Alexandre Schmid, Neil Joye

A new approach based on three-dimensional tip electrodes has been developed as a way to increase the electrical oupling between the neural cells and the individual sensors in a microelectrode array (MEA). With respect to standard planar electrodes, the ele ...

2008

Precisely-timed synchronization among spiking neuron circuits on silicon neural networks - Analog implementation of integrate-and-fire neurons, depressing synapses, and STDP learning units

Yusuf Leblebici, Alexandre Schmid

2005

Case Study of Fault-Tolerant Architectures for 90nm CMOS Cryptographic Cores

Yusuf Leblebici, Alexandre Schmid, Milos Stanisavljevic

This paper presents a case study of different fault-tolerant architectures. The emphasis is on the silicon realization. A 128bit AES cryptographic core has been designed and fabricated as a main topology on which the fault-tolerant architectures have been ...

2007

Hardware-Oriented Dynamically Adaptive Disparity Estimation Algorithm and its Real-Time Hardware

Alexandre Schmid, Yusuf Leblebici, Irem Boybat Kara, Abdulkadir Akin, Hüseyin Baris Atakan

A real-time stereo camera disparity estimation device comprises input means arranged to input measured data corresponding to rows of left and right images; a plurality of on-chip memories arranged to buffer the input measured data; a vertical rotator hardw ...

2015

A Sub-μW/Channel, 16-Channel Seizure Detection and Signal Acquisition SoC Based on Multichannel Compressive Sensing

Alexandre Schmid, Reza Ranjandish

An accurate 16-channel seizure detection system-on-chip is presented, which is based on extracting features from the compressed recorded data using multichannel compressive sensing (MCS). MCS is used to reduce the transmission data rate of sparse biologica ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2018

Image Blending in a High Frame Rate FPGA-based Multi-Camera System

Yusuf Leblebici, Alexandre Schmid, Vladan Popovic, Hossein Afshari, Kerem Seyid, Abdulkadir Akin, Ömer Cogal

Panoptic is a custom spherical light field camera used as a polydioptric system where imagers are distributed over a hemispherical surface, each having its own vision of the surroundings and a distinct focal plane. The spherical light field camera records ...

2013

AC analysis of defect cross sections using non-radiative MPA quantum model

Yusuf Leblebici, Alexandre Schmid, Davide Garetto

A multiphonon-assisted model included in a Poisson-Schroedinger solver has been applied for the calculation of the capture/emission trapping rates of Si/SiO2 interface defects and their dependence with respect to the trap energy and depth in the oxide. The ...

2011

A (256x256) Pixel 76.7mW CMOS Imager/ Compressor Based on Real-Time In-Pixel Compressive Sensing

Pierre Vandergheynst, Yusuf Leblebici, Alexandre Schmid, Laurent Jacques, Vahid Majidzadeh Bafar

A CMOS imager is presented which has the abil- ity to perform localized compressive sensing on-chip. In-pixel convolutions of the sensed image with measurement matrices are computed in real time, and a proposed programmable two- dimensional scrambling tech ...

IEEE Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

AM Modulation-based CMOS Readout Circuit for High-density Microelectrode Arrays

Yusuf Leblebici, Alexandre Schmid, Neil Joye

An innovative readout channel, based on analog amplitude modulation (AM) of the signals recorded by each electrode, is developed for high-density CMOS-based MEAs. This new readout method enables the design of a low-noise amplification stage while still rea ...

2010

Very High Density Microelectrode Array with Monolithically Integrated Readout Circuits

Yusuf Leblebici, Alexandre Schmid, Neil Joye

This paper presents the hardware realization and modeling of high-density microelectrode arrays including both microelectronic readout amplifiers as well as three-dimensional microelectrodes forming a fully integrated CMOS compatible system enabling resear ...

2010

A Sequential High-Frequency Switched-Capacitor Neuro-Stimulation Technique with 77% Power Efficiency

Alexandre Schmid

This paper proposes a new energy-efficient technique for high-frequency switched-capacitor stimulation systems. The proposed sequential high-frequency switched-capacitor (S-HFSC) structure employs a two-step charge transfer technique to reduce the voltage ...

SPRINGER BIRKHAUSER2025

Digital One-Shot Charge-balancing Method for Implantable Current-Mode Electrical Stimulation

Alexandre Schmid, Keyvan Farhang Razi

A low-power digital charge balancing system, which ensures the safe operation of constant-current biphasic stimulation is presented. The concept of the proposed charge-balancing technique is to utilize a hybrid method consisting of anodic pulse modulation ...

IEEE2023

A Fully On-Chip LDO Voltage Regulator for Remotely Powered Cortical Implants

Yusuf Leblebici, Alexandre Schmid, Vahid Majidzadeh Bafar

This article presents a fully on-chip low-power low drop-out (LDO) voltage regulator dedicated to remotely powered wireless cortical implants. This regulator is stable over the full range of alternating current without the need of dedicated active circuitr ...

2009

A High-Precision and High-Dynamic-Range Current-Mode WTA Circuit for Low-Supply-Voltage Applications

Alexandre Schmid, Mehdi Saberi

This brief proposes a low-voltage, high-precision, and high-dynamic-range current-mode analog winner-take-all (WTA) circuit. The proposed structure employs a new high-gain stage as a feedback network between the input node of each cell and the common node ...

2024

Nanowire for Room Temperature Operated Hybrid CMOS-‘NANO’ Integrated Circuits

Mihai Adrian Ionescu, Yusuf Leblebici, Alexandre Schmid, Michel Declercq, Vincent Pott, Marco Mazza, Serge Ecoffey

2005

New Logic Family Based on Hybrid MOSFET-Polysilicon Nano-Wires

Mihai Adrian Ionescu, Yusuf Leblebici, Alexandre Schmid, Michel Declercq, Didier Bouvet, Vincent Pott, Marco Mazza, Serge Ecoffey

2005

A Hardware-Oriented Dynamically Adaptive Disparity Estimation Algorithm and its Real-Time Hardware

Yusuf Leblebici, Alexandre Schmid, Irem Boybat Kara, Hüseyin Baris Atakan, Abdulkadir Akin

The computational complexity of disparity estimation algorithms and the need of large size and bandwidth for the external and internal memory make the real-time processing of disparity estimation challenging, especially for High Resolution (HR) images. Thi ...

2013

Stochastic Resonance In A Balanced Pair Of Single-Electron Boxes

Alexandre Schmid

Stochastic resonance in a fundamental single-electron circuit, i.e., a balanced pair of single-electron boxes, is observed and presented theoretically, where the signal-to-noise ratio (SNR) of the internal states stimulated by responding to a periodic subt ...

2011