Ultra Low Power Analog To Digital Converters For Medical Applications
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Ultra Low Voltage Frequency Synthesizer And Successive Approximation Analog To Digital Converter For Biomedical Applications
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Author : Chung-Chih Hung
language : en
Publisher: Springer Nature
Release Date : 2021-12-07
Ultra Low Voltage Frequency Synthesizer And Successive Approximation Analog To Digital Converter For Biomedical Applications written by Chung-Chih Hung and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-07 with Technology & Engineering categories.
This book introduces the origin of biomedical signals and the operating principles behind them and introduces the characteristics of common biomedical signals for subsequent signal measurement and judgment. Since biomedical signals are captured by wearable devices, sensor devices, or implanted devices, these devices are all battery-powered to maintain long working time. We hope to reduce their power consumption to extend service life, especially for implantable devices, because battery replacement can only be done through surgery. Therefore, we must understand how to design low-power integrated circuits. Both implantable and in-vitro medical signal detectors require two basic components to collect and transmit biomedical signals: an analog-to-digital converter and a frequency synthesizer because these measured biomedical signals are wirelessly transmitted to the relevant receiving unit. The core unit of wireless transmission is the frequency synthesizer, which provides a wide frequency range and stable frequency to demonstrate the quality and performance of the wireless transmitter. Therefore, the basic operating principle and model of the frequency synthesizer are introduced. We also show design examples and measurement results of a low-power low-voltage integer-N frequency synthesizer for biomedical applications. The detection of biomedical signals needs to be converted into digital signals by an analog-to-digital converter to facilitate subsequent signal processing and recognition. Therefore, the operating principle of the analog-to-digital converter is introduced. We also show implementation examples and measurement results of low-power low-voltage analog-to-digital converters for biomedical applications.
Ultra Low Power Bioelectronics
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Author : Rahul Sarpeshkar
language : en
Publisher: Cambridge University Press
Release Date : 2010-02-22
Ultra Low Power Bioelectronics written by Rahul Sarpeshkar and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-22 with Technology & Engineering categories.
This book provides, for the first time, a broad and deep treatment of the fields of both ultra low power electronics and bioelectronics. It discusses fundamental principles and circuits for ultra low power electronic design and their applications in biomedical systems. It also discusses how ultra energy efficient cellular and neural systems in biology can inspire revolutionary low power architectures in mixed-signal and RF electronics. The book presents a unique, unifying view of ultra low power analog and digital electronics and emphasizes the use of the ultra energy efficient subthreshold regime of transistor operation in both. Chapters on batteries, energy harvesting, and the future of energy provide an understanding of fundamental relationships between energy use and energy generation at small scales and at large scales. A wealth of insights and examples from brain implants, cochlear implants, bio-molecular sensing, cardiac devices, and bio-inspired systems make the book useful and engaging for students and practicing engineers.
Design And Modeling Of Low Power Vlsi Systems
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Author : Sharma, Manoj
language : en
Publisher: IGI Global
Release Date : 2016-06-06
Design And Modeling Of Low Power Vlsi Systems written by Sharma, Manoj and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-06 with Technology & Engineering categories.
Very Large Scale Integration (VLSI) Systems refer to the latest development in computer microchips which are created by integrating hundreds of thousands of transistors into one chip. Emerging research in this area has the potential to uncover further applications for VSLI technologies in addition to system advancements. Design and Modeling of Low Power VLSI Systems analyzes various traditional and modern low power techniques for integrated circuit design in addition to the limiting factors of existing techniques and methods for optimization. Through a research-based discussion of the technicalities involved in the VLSI hardware development process cycle, this book is a useful resource for researchers, engineers, and graduate-level students in computer science and engineering.
Electronic Devices Circuits And Systems For Biomedical Applications
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Author : Suman Lata Tripathi
language : en
Publisher: Academic Press
Release Date : 2021-04-28
Electronic Devices Circuits And Systems For Biomedical Applications written by Suman Lata Tripathi and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-28 with Technology & Engineering categories.
Electronic Devices, Circuits, and Systems for Biomedical Applications: Challenges and Intelligent Approaches explains the latest information on the design of new technological solutions for low-power, high-speed efficient biomedical devices, circuits and systems. The book outlines new methods to enhance system performance, provides key parameters to explore the electronic devices and circuit biomedical applications, and discusses innovative materials that improve device performance, even for those with smaller dimensions and lower costs. This book is ideal for graduate students in biomedical engineering and medical informatics, biomedical engineers, medical device designers, and researchers in signal processing. - Presents major design challenges and research potential in biomedical systems - Walks readers through essential concepts in advanced biomedical system design - Focuses on healthcare system design for low power-efficient and highly-secured biomedical electronics
Ultra Low Power Analog To Digital Converters For Medical Applications
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Author :
language : en
Publisher:
Release Date : 2014
Ultra Low Power Analog To Digital Converters For Medical Applications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Biomedical Engineering Concepts Methodologies Tools And Applications
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Author : Management Association, Information Resources
language : en
Publisher: IGI Global
Release Date : 2017-07-13
Biomedical Engineering Concepts Methodologies Tools And Applications written by Management Association, Information Resources and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-13 with Technology & Engineering categories.
Technological tools and computational techniques have enhanced the healthcare industry. These advancements have led to significant progress and novel opportunities for biomedical engineering. Biomedical Engineering: Concepts, Methodologies, Tools, and Applications is an authoritative reference source for emerging scholarly research on trends, techniques, and future directions in the field of biomedical engineering technologies. Highlighting a comprehensive range of topics such as nanotechnology, biomaterials, and robotics, this multi-volume book is ideally designed for medical practitioners, professionals, students, engineers, and researchers interested in the latest developments in biomedical technology.
Energy Efficient Implementation Of Communication Algorithms Through Complexity Reduction
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Author : Narges Mohammadi Sarband
language : en
Publisher: Linköping University Electronic Press
Release Date : 2024-12-13
Energy Efficient Implementation Of Communication Algorithms Through Complexity Reduction written by Narges Mohammadi Sarband and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-12-13 with categories.
Energy-efficient implementations are essential for the future and modern society, especially in digital signal processing (DSP) and communication systems, where the rapid growth of devices, such as those battery-driven internet of things (IoT) sensors, necessitates low-complexity and low-power solutions. This thesis concentrates on two areas: constant multiplication and active user detection in wire-less networks. Constant multiplication can be implemented using a shift-and-add (SHA) network. Typically, the number of adders/subtracters is minimized, but the number of cascaded adders/subtracters (depth) also impacts the power consumption. The two classes of algorithms used to solve the problem are adder graph algorithms or sub-expression sharing algorithms. Adder graph algorithms typically yield better results for a single or a low number of inputs, since they do not depend on the representation of the numbers involved. However, they can lead to very high run times and worse results when the number of inputs is high. At the same time, it is known that it is possible to transpose the problem. For example, a sum of products (many inputs) can be transposed to a single input with multiple coefficients, meaning that it is possible to transpose the problem to the more advantageous form, solve it and then transpose the solution back. However, there has been no systematic algorithm available to obtain the transposed result that takes depth into account. In this thesis, a systematic algorithm that obtains the minimum depth of the transposed SHA network subject to the input is introduced. The practical application of the constant multiplication problem is demonstrated through the implementation of a reconfigurable lowpass equalizer, widely used in communication systems and DSP. Various formulations of the constant multiplication problem, combined with pipelining, are explored to identify the most efficient implementation in a 28 nm FD-SOI standard cell, significantly reducing power consumption and highlighting the real-world impact of our research. The second research focuses on the challenge of detecting active users in massive machine-type communication (mMTC) scenarios involving large numbers of devices. The problem is addressed using a pilot-hopping sequence method and is formulated as a non-negative least-squares (NNLS) problem. This work implements two NNLS algorithms, fast projected gradient (Fast) and multiplicative updates (Mult), to solve the active user detection problem. These implementations are implemented in a 28 nm FD-SOI process and are optimized for energy efficiency, chip area, and detection speed. The results demonstrate the ability to perform over a million detections per second with significantly lower energy consumption compared to existing methods. However, the implementations lack reconfigurability, and it can be argued whether the high detection rates are relevant for current practical applications. To enhance practicality and reconfigurability, the Fast algorithm is implemented using a reconfigurable time-multiplexed architecture, reducing resources by reusing them within one iteration. This architecture employs a novel user re-ordering method to enable parallel memory access and continuous operation for successive iterations, thereby increasing the execution speed. The architecture is implemented on numerous FPGA families, demonstrating resource efficiency and reconfigurability by storing the pilot-hopping sequences in memory, while obtaining a more practically usable detection rate of about one to a few thousand detections per second depending on the FPGA family. Energieffektiva implementationer är avgörande för framtiden och det moderna samhället, särskilt inom digital signalbehandling (DSP) och kommunikationssystem, där den snabba tillväxten av enheter, såsom de inom Internet of Things (IoT), kräver lösningar med låg komplexitet och låg effektförbrukning. Denna avhandling fokuserar på två områden: konstantmultiplikation och detektering av aktiva användare i trådlösa nätverk. Konstantmultiplikation kan implementeras med ett shift-and-add (SHA) nätverk. Vanligtvis så minimeras antalet adderare/subtraherare, men antalet kaskadkopplade adderare/subtraherare (djupet) påverkar också effektförbrukningen. De två klasserna av algoritmer för att lösa konstaktmultiplikation baseras på adderargrafer eller gemensamma deluttryck. Addergrafer är oftast bättre vid en eller få ingångar, eftersom de inte beror på vilken representation som talen uttrycks med. För många ingångar så kan beräkningstiden öka väldigt snabbt samt att resultaten ofta är sämre eftersom sökrymden ökar fort. Samtidigt så är det välkänt att det får att transponera problemet. Till exempel så kan en summa produkter (många ingångar) transponeras till en ingång som multipliceras med många olika konstanter. Detta leder till att det är möjligt att transponera problemet till den mest fördelaktiga formen, lösa det och sedan transponera lösningen. Det har tidigare inte funnits någon systematisk algoritm för att transponera ett nätverk som tar hänsyn till djupet, men i denna avhandling så presenteras en som garanterar minimalt djup givet en viss adderargraf som argument. Den praktiska tillämpningen av konstantmultiplikation demonstreras genom implementering av en konfigurerbar lågpassutjämnare, som är allmänt använd i DSP- och kommunikationssystem. Olika formuleringar av konstantmultiplikationsproblemet, kombinerat med pipelining, utforskas för att identifiera den mest effektiva implementationen i en 28 nm FD-SOI-standardcell, vilket avsevärt minskar strömförbrukningen och visar den verkliga påverkan av vår forskning. Den andra forskningen fokuserar på utmaningen att detektera aktiva användare i massive machinetype communication (mMTC) med ett stort antal enheter. Problemet hanteras med hjälp av en pilothoppingssekvensmetod och formuleras som ett problem med non-negative least-squares (NNLS). Detta arbete implementerar två NNLS-algoritmer, fast projected gradient (Fast) och multiplikativa uppdateringar (Mult), för att lösa problemet med detektering av aktiva användare. Dessa implementationer implementerade i en 28 nm FD-SOI-process och är optimerade för energieffektivitet, chiparea och detekteringshastighet. Resultaten visar att mer än en miljon detektioner per sekund kan utföras med betydligt lägre energiförbrukning än befintliga metoder, till stor del för att en iteration beräknas helt parallelt. Dock saknas möjlighet att ändra användarsekvenser och det kan diskuteras om den höga detektionstakten är praktiskt användbar. För att öka praktiskheten implementeras Fast-algoritmen med en konfigurerbar tidsmultiplexad arkitektur, vilken sparar resurser genom att återanvända dem i en iteration. Denna arkitektur använder en ny metod att ordna om användarna för att möjliggöra parallell minnesåtkomst och kontinuerliga beräkning-ar för efterföljande iterationer, vilket ökar exekveringshastigheten. Arkitekturen implementeras på olika FPGA-familjer och visar resurseffektivitet och konfigurerbarhet genom att pilothoppningssekvenserna sparas i minne, samtidigt som en mer praktiskt användbar detektionshastighet från ungefär ett tusen till några tusen detektioner per sekund beroende på FPGA-familj.
Wearable Technologies Concepts Methodologies Tools And Applications
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Author : Management Association, Information Resources
language : en
Publisher: IGI Global
Release Date : 2018-04-06
Wearable Technologies Concepts Methodologies Tools And Applications written by Management Association, Information Resources and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-06 with Technology & Engineering categories.
Advances in technology continue to alter the ways in which we conduct our lives, from the private sphere to how we interact with others in public. As these innovations become more integrated into modern society, their applications become increasingly relevant in various facets of life. Wearable Technologies: Concepts, Methodologies, Tools, and Applications is a comprehensive reference source for the latest scholarly material on the development and implementation of wearables within various environments, emphasizing the valuable resources offered by these advances. Highlighting a range of pertinent topics, such as assistive technologies, data storage, and health and fitness applications, this multi-volume book is ideally designed for researchers, academics, professionals, students, and practitioners interested in the emerging applications of wearable technologies.
Bio Medical Cmos Ics
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Author : Hoi-Jun Yoo
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-11-02
Bio Medical Cmos Ics written by Hoi-Jun Yoo and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-02 with Technology & Engineering categories.
This book is based on a graduate course entitled, Ubiquitous Healthcare Circuits and Systems, that was given by one of the editors at his university. It includes an introduction and overview to the field of biomedical ICs and provides information on the current trends in research. The material focuses on the design of biomedical ICs rather than focusing on how to use prepared ICs.
Proceedings Of Second International Conference On Computational Electronics For Wireless Communications
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Author : Sanyog Rawat
language : en
Publisher: Springer Nature
Release Date : 2023-01-27
Proceedings Of Second International Conference On Computational Electronics For Wireless Communications written by Sanyog Rawat and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-27 with Technology & Engineering categories.
This book includes high-quality papers presented at Second International Conference on Computational Electronics for Wireless Communications (ICCWC 2022), held at National Institute of Technology, Surathkal, Karnataka, India, during June 9 – 10, 2022. The book presents original research work of academics and industry professionals to exchange their knowledge of the state-of-the-art research and development in computational electronics with an emphasis on wireless communications. The topics covered in the book are radio frequency and microwave, signal processing, microelectronics, and wireless networks.