Concept

Amplificateur audio

Publications associées (94)

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A Fully Integrated 0.18-um CMOS Transceiver Chip for X-Band Phased-Array Systems

Kiarash Gharibdoust

An X-band core chip is designed and fabricated in 0.18-um CMOS technology, which can significantly reduce the monolithic microwave integrated circuit count required for realizing an active beam-former T/R module. The core chip consists of two RX/TX paths, ...

Institute of Electrical and Electronics Engineers2012

A fully integrated Hall sensor microsystem with current-mode output

Maher Kayal, Marc Pastre, Andrea Ajbl

This paper presents a fully integrated Hall sensor microsystem with a current-mode output. The system operates in open-loop and includes a Hall sensor with internal biasing, a fully differential front-end, a preamplifier chain and a voltage-to-current conv ...

2011

Inductive Power Link for a Wireless Cortical Implant With Two-Body Packaging

Catherine Dehollain, Michel Declercq, Kanber Mithat Silay

This paper presents an inductive power link for remote powering of a wireless cortical implant. The link includes a Class-E power amplifier, a gate driver, an inductive link, and an integrated rectifier. The coils of the inductive link are designed and opt ...

Institute of Electrical and Electronics Engineers2011

Amplitude modulation based readout for very dense active microelectrode arrays

Alexandre Schmid, Yusuf Leblebici, Neil Joye

A readout method which is suitable for high-density active microelectrode arrays used in electrophysiology experiments is presented. Amplitude modulation of consecutive channels enables simultaneous recording and transmission of the signals recorded on mul ...

2011

The Vibrating Body Transistor

Mihai Adrian Ionescu, Daniel Grogg

This paper presents a hybrid resonator architecture called the vibrating body field-effect transistor (VB-FET), which combines a silicon microelectromechanical (MEM) resonator and a FET in a single device. The active device provides improved motion sensing ...

2011

Nested Surface Coils for Multinuclear NMR

Rolf Gruetter

This article introduces the design of surface coils for multinuclear applications. The relative sensitivities of several NMR-visible nuclei of biological interest are considered, and the motivations to operate an RF coil at multiple frequencies, both seque ...

John Wiley & Sons2011

Distributed audio coding for wireless hearing aids

Martin Vetterli, Olivier Roy

The aim of the invention is to provide inter-channel level differences ICLD related to audio signals for hearing aids. This aim is achieved by a method for computing ICLD from a first and second audio source signals, the first source signal being wired wit ...

2011

Inductive Power Link for a Wireless Cortical Implant with Biocompatible Packaging

Catherine Dehollain, Michel Declercq, Kanber Mithat Silay

This article presents an inductive power link for a cortical implant. The link includes a Class-E power amplifier, an inductive link, a matching network, and a rectifier. The coils of the inductive link are designed and optimized for a distance of 10mm (sc ...

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

Characterization of Distortionless Analog Signal Multicasting by Parametric Mixer

Camille Sophie Brès

We present characterization of a two-pump parametric device for analog linear multicasting. Linearity of parametric multicasting is assessed from highly linearized input seed by two-tone intermodulation measurements. Experimental results confirm distortion ...

2010

FINITE RATE OF INNOVATION (FRI) TECHNIQUES FOR LOW POWER BODY AREA NETWORK

Yann Barbotin

Certain aspects of the present disclosure relate to a method for quantizing an analog received signal in a low-power body area network (LP-BAN) by using a limited number of quantization bits, while information of the received signal is preserved for accura ...

USPTO2010