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Sans précédent dans l'histoire du travail, des millions d'êtres humains se sont vus contraints par l'entremise d'une pandémie de rester chez eux et de télétravailler.Dans nos sociétés capitalistes dominées par le secteur tertiaire où l'espace de bureau, sous toutes ses formes, est au cœur même du système, cet événement va sans nul doute profondément modifier le rapport au travail. D'ici peu le travail à domicile ou télétravail sera une des principales modalités de l'organisation générale du travail.Le travailleur en sortira-t-il gagnant ? Pas si sûr même si une majorité de travailleurs dit vouloir télétravailler davantage. Disparition du collectif, isolement, augmentation du temps de travail, invasion de la sphère privée, droit à la déconnexion, coûts à charge du travailleur, ... sont autant de questions auxquelles cette flexibilité nouvelle nous demande de répondre."À distance" vous propose de partir à la rencontre d'expériences concrètes et d'entamer, en compagnie de philosophes, sociologues, syndicalistes, responsables de structures, un voyage réflexif dans notre futur de travailleur. Le film est accompagné de 4 PRÉCIPITÉS.

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RF Power Amplifiers for Mobile Communications fits in the quest for fully integrated CMOS transceivers. The book tackles both high efficiency and high linearity PA design in low-voltage CMOS, and has a strong emphasis on theory, design and implementation. The book is conceived as a design guide for those actively involved in the design of CMOS wireless transceivers. RF Power Amplifiers for Mobile Communications starts from the basic theory of power amplification from the viewpoint of CMOS integration. The design of switching RF power amplifiers in CMOS is explored and CMOS PA design at low supply voltage using parallel amplification is discussed. Combining both efficiency and linearity is one of the major issues in CMOS PA design for wireless and mobile communications and is subsequently tackled. Different linearization techniques and approaches are discussed and polar modulation is clarified in greater detail. Finally, two CMOS PA implementations are thoroughly covered. RF Power Amplifiers for Mobile Communications offers the reader an intuitive insight in Power Amplification as well as the necessary mathematical background. The book is essential reading for RF design engineers and researchers in the field and is also suitable as a text book for an advanced course on the subject.

Power amplifiers. --- Mobile communication systems. --- Amplifiers, Radio frequency. --- Radio frequency amplifiers --- Amplifiers (Electronics) --- Vehicles --- Vehicular communication systems --- Radio --- Wireless communication systems --- Communication systems --- Computer engineering. --- Microwaves. --- Electronics. --- Systems engineering. --- Telecommunication. --- Electrical Engineering. --- Microwaves, RF and Optical Engineering. --- Electronics and Microelectronics, Instrumentation. --- Circuits and Systems. --- Signal, Image and Speech Processing. --- Communications Engineering, Networks. --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Electrical engineering --- Physical sciences --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- Computers --- Design and construction --- Electrical engineering. --- Optical engineering. --- Microelectronics. --- Electronic circuits. --- Signal processing. --- Image processing. --- Speech processing systems. --- Computational linguistics --- Electronic systems --- Modulation theory --- Oral communication --- Speech --- Telecommunication --- Singing voice synthesizers --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Optical data processing --- Processing, Signal --- Information measurement --- Signal theory (Telecommunication) --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Electronics --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Mechanical engineering --- Electric engineering

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Design of high voltage xDSL line drivers in standard CMOS fits in the quest for highly efficient fully integrated xDSL modems for central office applications. The book focusses on the line driver, the most demanding building block of the xDSL modem for lowering power. To reduce the cost, the cheapest technology is selected: standard CMOS, without any extra process options to increase the nominal supply voltage. The emphasis lies on the analysis, design and implementation of high voltage highly efficient line drivers in mainstream CMOS. Design of high voltage xDSL line drivers in standard CMOS starts from the Self-Oscillating Power Amplifier (SOPA), a highly efficient line driver for xDSL applications. However, in the nano-electronic era, the low supply voltage of CMOS results in very low efficiencies for line drivers and power amplifiers in general. In this book a technique is developed for designing high voltage circuits in a low voltage mainstream CMOS technology. Several practical design examples reveal the subtleties and challenges encountered during the design of high voltage circuits in low voltage standard CMOS. Such a high voltage buffer is then integrated into the SOPA architecture leading to the implementation of a high voltage highly efficient aDSL2+ line driver in a 1.2V 130nm mainstream CMOS technology. Design of high voltage xDSL line drivers in standard CMOS covers the total design flow of monolithic CMOS high voltage circuits. The book is essential reading for analog design engineers and researchers in the field and is also suitable as a text book for an advanced course on the subject.

Line drivers (Integrated circuits) --- Metal oxide semiconductors, Complementary. --- Design and construction. --- CMOS (Electronics) --- Complementary metal oxide semiconductors --- Semiconductors, Complementary metal oxide --- Digital electronics --- Logic circuits --- Transistor-transistor logic circuits --- Buffers, Tri-state (Integrated circuits) --- Drivers, Line (Integrated circuits) --- Tri-state buffers (Integrated circuits) --- Amplifiers (Electronics) --- Computer interfaces --- Integrated circuits --- Systems engineering. --- Electronics. --- Computer engineering. --- Telecommunication. --- Circuits and Systems. --- Electronics and Microelectronics, Instrumentation. --- Electrical Engineering. --- Communications Engineering, Networks. --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Telecommunications --- Communication --- Information theory --- Telecommuting --- Computers --- Electrical engineering --- Physical sciences --- Engineering systems --- System engineering --- Engineering --- Industrial engineering --- System analysis --- Design and construction --- Electronic circuits. --- Microelectronics. --- Electrical engineering. --- Electric engineering --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Electronics --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Electron-tube circuits --- Electric circuits --- Electron tubes --- Metal oxide semiconductors, Complementary

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When comparing conventional computing architectures to the architectures of biological neural systems, we find several striking differences. Conventional computers use a low number of high performance computing elements that are programmed with algorithms to perform tasks in a time sequenced way; they are very successful in administrative applications, in scientific simulations, and in certain signal processing applications. However, the biological systems still significantly outperform conventional computers in perception tasks, sensory data processing and motory control. Biological systems use a completely dif­ ferent computing paradigm: a massive network of simple processors that are (adaptively) interconnected and operate in parallel. Exactly this massively parallel processing seems the key aspect to their success. On the other hand the development of VLSI technologies provide us with technological means to implement very complicated systems on a silicon die. Especially analog VLSI circuits in standard digital technologies open the way for the implement at ion of massively parallel analog signal processing systems for sensory signal processing applications and for perception tasks. In chapter 1 the motivations behind the emergence of the analog VLSI of massively parallel systems is discussed in detail together with the capabilities and !imitations of VLSI technologies and the required research and developments. Analog parallel signal processing drives for the development of very com­ pact, high speed and low power circuits. An important technologicallimitation in the reduction of the size of circuits and the improvement of the speed and power consumption performance is the device inaccuracies or device mismatch.

Linear integrated circuits. --- Parallel processing (Electronic computers) --- Signal processing --- Neural networks (Computer science) --- Circuits intégrés linéaires --- Parallélisme (Informatique) --- Traitement du signal --- Réseaux neuronaux (Informatique) --- Digital techniques. --- Techniques numériques --- Linear integrated circuits --- Digital techniques --- Neural networks (Computer science). --- Parallel processing (Electronic computers). --- Electrical engineering. --- Statistical physics. --- Dynamical systems. --- Signal processing. --- Image processing. --- Speech processing systems. --- Electrical Engineering. --- Complex Systems. --- Signal, Image and Speech Processing. --- Statistical Physics and Dynamical Systems. --- Computational linguistics --- Electronic systems --- Information theory --- Modulation theory --- Oral communication --- Speech --- Telecommunication --- Singing voice synthesizers --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Optical data processing --- Processing, Signal --- Information measurement --- Signal theory (Telecommunication) --- Dynamical systems --- Kinetics --- Mathematics --- Mechanics, Analytic --- Force and energy --- Mechanics --- Physics --- Statics --- Mathematical statistics --- Electric engineering --- Engineering --- Statistical methods --- Digital signal processing --- Digital communications --- Digital electronics --- Linear ICs --- Analog integrated circuits --- High performance computing --- Multiprocessors --- Parallel programming (Computer science) --- Supercomputers --- Signal processing - Digital techniques

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This book presents several circuits that are required for the full integration of an optical transmitter in standard CMOS. The main emphasis is placed on high-speed receivers with a bitrate of up to 1 Gb/s. The possibility of including the photodiode in a receiver is investigated and the problems encountered are discussed. Concerning the transmitter aspect, a CMOS LED driver is described. The final chapter addresses electrical interference problems on a chip and proposes countermeasures. The various circuits in this book have all been realized and measurement results are presented, paving the way for single chip communication systems in which the optical interfaces are integrated on the same die as the digital circuitry.

Optical detectors --- Metal oxide semiconductors, Complementary --- Integrated circuits --- CMOS --- Analog --- Optical receiver --- Opto-electronics --- Transimpedance --- Integrated circuit --- 621.382 --- Light-sensitive cells --- Light-sensitive detectors --- Light sensor photodevices --- Photodetectors --- Photodevices, Light sensor --- Photoelectric detectors --- Photosensors --- Detectors --- Optical transducers --- Optoelectronic devices --- CMOS (Electronics) --- Complementary metal oxide semiconductors --- Semiconductors, Complementary metal oxide --- Digital electronics --- Logic circuits --- Transistor-transistor logic circuits --- Chips (Electronics) --- Circuits, Integrated --- Computer chips --- Microchips --- Electronic circuits --- Microelectronics --- Electrical engineering. --- Lasers. --- Photonics. --- Optical materials. --- Electronic materials. --- Microwaves. --- Optical engineering. --- Electronics. --- Microelectronics. --- Communications Engineering, Networks. --- Optics, Lasers, Photonics, Optical Devices. --- Optical and Electronic Materials. --- Microwaves, RF and Optical Engineering. --- Electronics and Microelectronics, Instrumentation. --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Electronics --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Electrical engineering --- Physical sciences --- Mechanical engineering --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- Electronic materials --- Optics --- Materials --- New optics --- Light amplification by stimulated emission of radiation --- Masers, Optical --- Optical masers --- Light amplifiers --- Light sources --- Nonlinear optics --- Optical parametric oscillators --- Electric engineering --- Engineering