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The Design Of Biotelemetry System For Implantable Applications And The Implementation Of Rf Front End Circuits And Variable Resolution Sigma Delta Modulator
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Book Synopsis The Design of Biotelemetry System for Implantable Applications and the Implementation of RF Front-end Circuits and Variable-resolution Sigma-Delta Modulator by : 徐貞明
Download or read book The Design of Biotelemetry System for Implantable Applications and the Implementation of RF Front-end Circuits and Variable-resolution Sigma-Delta Modulator written by 徐貞明 and published by . This book was released on 2007 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development of a Capacitance-based Biotelemetry System for Implantable Applications by :
Download or read book The Development of a Capacitance-based Biotelemetry System for Implantable Applications written by and published by . This book was released on 2006 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most modern biomedical implants implement some form of communications link between the implant and the outside world. This biotelemetry link has many requirements such as data bandwidth and power consumption. Designing an appropriate link that meets these requirements is one of the most significant engineering challenges associated with these implants. Communications methods that are currently used for this link include standard Radio Frequency (RF) approaches, inductively coupled approaches, and load modulation approaches. This thesis describes the development of a unique capacitance-based biotelemetry system for implantable applications. This system consists of two distinct parts: the implanted transmitter and the external body-mounted receiver. The prototype transmitter is based on a custom Application Specific Integrated Circuit (ASIC) fabricated using the AMI 1.5[mu] [micron] process. This ASIC encodes and transmits predetermined data packets by driving two electrodes in a slew-controlled manner, all contained within a biocompatible material. The receiver consists of charge-sensitive amplifier front end using a discriminator to distinguish individual bits. A Field Programmable Gate Array (FPGA) decodes the transmitted data and relays it to a PCbased LabVIEW interface. Test results using a saline-based human tissue model are presented.
Book Synopsis Design and Implementation of Sigma Delta Modulators (ΣΔM) for Class D Audio Amplifiers using Differential Pairs by : Nuno Pereira
Download or read book Design and Implementation of Sigma Delta Modulators (ΣΔM) for Class D Audio Amplifiers using Differential Pairs written by Nuno Pereira and published by Springer. This book was released on 2014-12-01 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the design of a 3rd Order CT-ΣΔM where the integrator stages of the filter are implemented with Bipolar-Junction Transistors (BJT) differential pairs. These circuits are fully analyzed and the design method is carefully explained. The design method is validated through experimental measurements of several prototype circuits.
Book Synopsis Top-Down Design of High-Performance Sigma-Delta Modulators by : Fernando Medeiro
Download or read book Top-Down Design of High-Performance Sigma-Delta Modulators written by Fernando Medeiro and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interest for :I:~ modulation-based NO converters has significantly increased in the last years. The reason for that is twofold. On the one hand, unlike other converters that need accurate building blocks to obtain high res olution, :I:~ converters show low sensitivity to the imperfections of their building blocks. This is achieved through extensive use of digital signal pro cessing - a desirable feature regarding the implementation of NO interfaces in mainstream CMOS technologies which are better suited for implementing fast, dense, digital circuits than accurate analog circuits. On the other hand, the number of applications with industrial interest has also grown. In fact, starting from the earliest in the audio band, today we can find :I:~ converters in a large variety of NO interfaces, ranging from instrumentation to commu nications. These advances have been supported by a number of research works that have lead to a considerably large amount of published papers and books cov ering different sub-topics: from purely theoretical aspects to architecture and circuit optimization. However, so much material is often difficultly digested by those unexperienced designers who have been committed to developing a :I:~ converter, mainly because there is a lack of methodology. In our view, a clear methodology is necessary in :I:~ modulator design because all related tasks are rather hard.
Book Synopsis Implantable Biotelemetry Systems by : Thomas B. Fryer
Download or read book Implantable Biotelemetry Systems written by Thomas B. Fryer and published by . This book was released on 1971 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: "With the advent of manned space flight, the National Aeronautics and Space Administration (NASA) has conducted intensive investigations on the physiological makeup of the human body. The last decade has seen major advances in the use of radiotelemetry in physiological research. Revolutionary developments in microelectronics are making possible smaller telemetry systems that can be wholly implanted in laboratory animals. The NASA Ames Research Center has been in the fore-front of such research and has developed many implantable biotelemetry devices now considered by many as a standard method for monitoring physiological functions in animals. This report describes biotelemetry developments at Ames, tracing the evolution of concepts underlying the accurate and reliable biotelemetry systems of today. Such systems are described in sufficient detail for the reader to select designs to meet specific needs. Through its Technology Utilization Program, NASA strives to make the results of such work widely available for the use of those outside the aerospace community. This publication is one of a series intended to achieve those objectives."--Foreword.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721016204 Total Pages :56 pages Book Rating :4.0/5 (162 download)
Book Synopsis The Biolink Implantable Telemetry System by : National Aeronautics and Space Administration (NASA)
Download or read book The Biolink Implantable Telemetry System written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-11 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most biotelemetry applications deal with the moderated data rates of biological signals. Few people have studied the problem of transcutaneous data transmission at the rates required by NASA's Life Sciences-Advanced BioTelemetry System (LS-ABTS). Implanted telemetry eliminate the problems associated with wire breaking the skin, and permits experiments with awake and unrestrained subjects. Our goal is to build a low-power 174-216MHz Radio Frequency (RF) transmitter suitable for short range biosensor and implantable use. The BioLink Implantable Telemetry System (BITS) is composed of three major units: an Analog Data Module (ADM), a Telemetry Transmitter Module (TTM), and a Command Receiver Module (CRM). BioLink incorporates novel low-power techniques to implement a monolithic digital RF transmitter operating at 100kbps, using quadrature phase shift keying (QPSK) modulation in the 174-216MHz ISM band. As the ADM will be specific for each application, we focused on solving the problems associated with a monolithic implementation of the TTM and CRM, and this is the emphasis of this report. A system architecture based on a Frequency-Locked Loop (FLL) Frequency Synthesizer is presented, and a novel differential frequency that eliminates the need for a frequency divider is also shown. A self sizing phase modulation scheme suitable for low power implementation was also developed. A full system-level simulation of the FLL was performed and loop filter parameters were determined. The implantable antenna has been designed, simulated and constructed. An implant package compatible with the ABTS requirements is also being proposed. Extensive work performed at 200MHz in 0.5um complementary metal oxide semiconductors (CMOS) showed the feasibility of integrating the RF transmitter circuits in a single chip. The Hajimiri phase noise model was used to optimize the Voltage Controlled Oscillator (VCO) for minimum power consumption. Two test chips were fabricated in a 0.5pm, 3V CMOS proce
Book Synopsis Top-Down Design of High-Performance Sigma-Delta Modulators by : Fernando Medeiro
Download or read book Top-Down Design of High-Performance Sigma-Delta Modulators written by Fernando Medeiro and published by Springer. This book was released on 2013-01-11 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interest for :I:~ modulation-based NO converters has significantly increased in the last years. The reason for that is twofold. On the one hand, unlike other converters that need accurate building blocks to obtain high res olution, :I:~ converters show low sensitivity to the imperfections of their building blocks. This is achieved through extensive use of digital signal pro cessing - a desirable feature regarding the implementation of NO interfaces in mainstream CMOS technologies which are better suited for implementing fast, dense, digital circuits than accurate analog circuits. On the other hand, the number of applications with industrial interest has also grown. In fact, starting from the earliest in the audio band, today we can find :I:~ converters in a large variety of NO interfaces, ranging from instrumentation to commu nications. These advances have been supported by a number of research works that have lead to a considerably large amount of published papers and books cov ering different sub-topics: from purely theoretical aspects to architecture and circuit optimization. However, so much material is often difficultly digested by those unexperienced designers who have been committed to developing a :I:~ converter, mainly because there is a lack of methodology. In our view, a clear methodology is necessary in :I:~ modulator design because all related tasks are rather hard.
Book Synopsis Design and Implementation of CMOS RF Transmitter Front-End Circuits for Wireless Medical Telemetry Applications by :
Download or read book Design and Implementation of CMOS RF Transmitter Front-End Circuits for Wireless Medical Telemetry Applications written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Arthur H.M. van Roermund Publisher :Springer Science & Business Media ISBN 13 :1461445876 Total Pages :291 pages Book Rating :4.4/5 (614 download)
Book Synopsis Nyquist AD Converters, Sensor Interfaces, and Robustness by : Arthur H.M. van Roermund
Download or read book Nyquist AD Converters, Sensor Interfaces, and Robustness written by Arthur H.M. van Roermund and published by Springer Science & Business Media. This book was released on 2012-11-26 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the 18 presentations during the 21st workshop on Advances in Analog Circuit Design. Expert designers provide readers with information about a variety of topics at the frontier of analog circuit design, including Nyquist analog-to-digital converters, capacitive sensor interfaces, reliability, variability, and connectivity. This book serves as a valuable reference to the state-of-the-art, for anyone involved in analog circuit research and development.
Book Synopsis VLSI Circuits for Biomedical Applications by : Krzysztof Iniewski
Download or read book VLSI Circuits for Biomedical Applications written by Krzysztof Iniewski and published by Artech House. This book was released on 2008 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supported with over 280 illustrations and over 160 equations, the book offers cutting-edge guidance on designing integrated circuits for wireless biosensing, body implants, biosensing interfaces, and molecular biology. You discover innovative design techniques and novel materials to help you achieve higher levels circuit and system performance.
Book Synopsis A Text Book of Medical Instruments by : S. Ananthi
Download or read book A Text Book of Medical Instruments written by S. Ananthi and published by New Age International. This book was released on 2006 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: About the Book: This book has therefore subdivided the realm of medical instruments into the same sections like a text on physiology and introduces the basic early day methods well, before dealing with the details of present day instruments currently in
Book Synopsis Sensor Technology Handbook by : Jon S. Wilson
Download or read book Sensor Technology Handbook written by Jon S. Wilson and published by Newnes. This book was released on 2005 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensor fundamentals -- Application considerations -- Measurement issues and criteria -- Sensor signal conditioning -- Acceleration, shock and vibration sensors -- Biosensors -- Chemical sensors -- Capacitive and inductive displacement sensors -- Electromagnetism in sensing -- Flow and level sensors -- Force, load and weight sensors -- Humidity sensors -- Machinery vibration monitoring sensors -- Optical and radiation sensors -- Position and motion sensors -- Pressure sensors -- Sensors for mechanical shock -- Test and measurement microphones -- Strain gages -- Temperature sensors -- Nanotechnology-enabled sensors -- Wireless sensor networks: principles and applications.
Book Synopsis Analog Design Essentials by : Willy M Sansen
Download or read book Analog Design Essentials written by Willy M Sansen and published by Springer Science & Business Media. This book was released on 2007-02-03 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book contains all topics of importance to the analog designer which are essential to obtain sufficient insights to do a thorough job. The book starts with elementary stages in building up operational amplifiers. The synthesis of opamps is covered in great detail. Many examples are included, operating at low supply voltages. Chapters on noise, distortion, filters, ADC/DACs and oscillators follow. These are all based on the extensive amount of teaching that the author has carried out world-wide.
Book Synopsis Analysis and Application of Analog Electronic Circuits to Biomedical Instrumentation by : Robert B. Northrop
Download or read book Analysis and Application of Analog Electronic Circuits to Biomedical Instrumentation written by Robert B. Northrop and published by CRC Press. This book was released on 2003-12-29 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the basic mathematical tools used to describe noise and its propagation through linear systems and provides a basic description of the improvement of signal-to-noise ratio by signal averaging and linear filtering. The text also demonstrates how op amps are the keystone of modern analog signal conditioning systems design, and il
Download or read book CMOS written by R. Jacob Baker and published by John Wiley & Sons. This book was released on 2008 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition provides an important contemporary view of a wide range of analog/digital circuit blocks, the BSIM model, data converter architectures, and more. The authors develop design techniques for both long- and short-channel CMOS technologies and then compare the two.
Book Synopsis Implantable Biomedical Microsystems by : Swarup Bhunia
Download or read book Implantable Biomedical Microsystems written by Swarup Bhunia and published by Elsevier. This book was released on 2015-01-28 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research and innovation in areas such as circuits, microsystems, packaging, biocompatibility, miniaturization, power supplies, remote control, reliability, and lifespan are leading to a rapid increase in the range of devices and corresponding applications in the field of wearable and implantable biomedical microsystems, which are used for monitoring, diagnosing, and controlling the health conditions of the human body. This book provides comprehensive coverage of the fundamental design principles and validation for implantable microsystems, as well as several major application areas. Each component in an implantable device is described in details, and major case studies demonstrate how these systems can be optimized for specific design objectives. The case studies include applications of implantable neural signal processors, brain-machine interface (BMI) systems intended for both data recording and treatment, neural prosthesis, bladder pressure monitoring for treating urinary incontinence, implantable imaging devices for early detection and diagnosis of diseases as well as electrical conduction block of peripheral nerve for chronic pain management. Implantable Biomedical Microsystems is the first comprehensive coverage of bioimplantable system design providing an invaluable information source for researchers in Biomedical, Electrical, Computer, Systems, and Mechanical Engineering as well as engineers involved in design and development of wearable and implantable bioelectronic devices and, more generally, teams working on low-power microsystems and their corresponding wireless energy and data links. First time comprehensive coverage of system-level and component-level design and engineering aspects for implantable microsystems. Provides insight into a wide range of proven applications and application specific design trade-offs of bioimplantable systems, including several major case studies Enables Engineers involved in development of implantable electronic systems to optimize applications for specific design objectives.
Book Synopsis Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems by : Kofi A.A. Makinwa
Download or read book Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems written by Kofi A.A. Makinwa and published by Springer. This book was released on 2015-08-28 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the 18 tutorials presented during the 24th workshop on Advances in Analog Circuit Design. Expert designers present readers with information about a variety of topics at the frontier of analog circuit design, including low-power and energy-efficient analog electronics, with specific contributions focusing on the design of efficient sensor interfaces and low-power RF systems. This book serves as a valuable reference to the state-of-the-art, for anyone involved in analog circuit research and development.
