LEADER 05697nam 2200733Ia 450 001 9910824296903321 005 20200520144314.0 010 $a1-281-11239-9 010 $a9786611112394 010 $a0-08-055640-X 035 $a(CKB)1000000000402174 035 $a(EBL)328605 035 $a(OCoLC)190787146 035 $a(SSID)ssj0000225299 035 $a(PQKBManifestationID)11203107 035 $a(PQKBTitleCode)TC0000225299 035 $a(PQKBWorkID)10230000 035 $a(PQKB)11173051 035 $a(Au-PeEL)EBL328605 035 $a(CaPaEBR)ebr10204206 035 $a(CaONFJC)MIL111239 035 $a(CaSebORM)9780750679589 035 $a(MiAaPQ)EBC328605 035 $a(PPN)170235645 035 $a(OCoLC)907477160 035 $a(OCoLC)ocn907477160 035 $a(EXLCZ)991000000000402174 100 $a20080220d2008 uy 0 101 0 $aeng 135 $aurunu||||| 181 $ctxt 182 $cc 183 $acr 200 10$aPower management in mobile devices /$fFindlay Shearer 205 $a1st edition 210 $aBurlington, MA $cNewnes$dc2008 215 $a1 online resource (337 p.) 225 1 $aCommunications engineering series 300 $aIncludes index. 311 $a0-7506-7958-1 320 $aIncludes bibliographical references and index. 327 $aFront Cover; Power Management in Mobile Devices; Copyright Page; Contents; Preface; About the Author; Chapter 1. Introduction to Power Management in Portable Personal Devices; 1.1 Power Trends; 1.2 Mobile Devices and Applications; 1.2.1 Cellular Phones; 1.2.2 Portable Media Players; 1.2.3 Portable Digital Audio Players; 1.2.4 Portable Navigation Devices; 1.3 Cellular Handsets: Deeper Dive; 1.3.1 Cellular System Overview; 1.3.2 Evolution of Cellular Systems; 1.3.3 Cellular Handset Teardown; 1.3.4 Seamless Mobility: Connectivity; 1.4 Summary; Chapter 2. Hierarchical View of Energy Conservation 327 $a2.1 Issues and Challenges 2.1.1 Closing the Technology Gaps; 2.1.2 Always On, Always Connected: Paradox of the Portable Age; 2.1.3 Balancing Battery Life with Performance and Cost; 2.2 Power versus Energy Types; 2.2.1 The Elements Power Consumption; 2.2.2 Elements of Dynamic and Static Power; 2.3 Hierarchy of Energy Conservation Techniques; 2.4 Low Power Process and Transistor Technology; 2.4.1 Process Technology Scaling; 2.4.2 Transistors and Interconnects; 2.5 Low Power Packaging Techniques; 2.5.1 Introduction; 2.5.2 Systems-in-Package; 2.5.3 Package-on-Package; 2.5.4 SiP versus PoP 327 $a2.6 Summary Chapter 3. Low Power Design Techniques, Design Methodology, and Tools; 3.1 Low Power Design Techniques; 3.1.1 Dynamic Process Temperature Compensation; 3.1.2 Static Process Compensation; 3.1.3 Power Gating; 3.1.4 State-Retention Power Gating; 3.2 Low Power Architectural and Subsystem Techniques; 3.2.1 Clock Gating; 3.2.2 Asynchronous Techniques: GALS; 3.2.3 Power Saving Modes; 3.3 Low Power SoC Design Methodology, Tools, and Standards; 3.3.1 Introduction; 3.3.2 Low Power Design Process; 3.3.3 Key EDA Vendors Approach to Low Power Design; 3.3.4 Low Power Format Standards 327 $a3.4 Summary Chapter 4. Energy Optimized Software; 4.1 Mobile Software Platform; 4.1.1 Modem Software; 4.1.2 Application Software; 4.1.3 Operating Systems for Mobile Devices; 4.1.4 Why an Operating System? Application Execution Environment; 4.2 Energy Efficient Software; 4.2.1 Dynamic Power Management; 4.2.2 Energy Efficient Compilers; 4.2.3 Application-Driven Power Management; 4.2.4 Advanced Power Management; 4.2.5 Advanced Configuration and Power Interface; 4.2.6 The Demand for Application-Driven Power Management; 4.3 Summary; Chapter 5. Batteries and Displays for Mobile Devices 327 $a5.1 Introduction 5.1.1 Battery Challenge; 5.1.2 Evolution of Battery Technology; 5.2 Battery Fundamentals; 5.3 Battery Technologies; 5.3.1 Sealed Lead Acid; 5.3.2 Nickel Cadmium; 5.3.3 Nickel Metal Hydride; 5.3.4 Lithium Ion; 5.3.5 Lithium-Ion Polymer; 5.3.6 Other Lithium-Ion Types; 5.4 Battery Chemistry Selection; 5.5 Portable Device Display Technologies; 5.5.1 Mobile Device Power Distribution; 5.5.2 Backlights; 5.5.3 Display Technologies; 5.6 Low Power LCD Display Techniques; 5.6.1 Dynamic Luminance Scaling; 5.6.2 Extended DLS; 5.6.3 Backlight Autoregulation; 5.6.4 Frame Buffer Compression 327 $a5.6.5 Dynamic Color Depth 330 $aSealed Lead Acid...Nickel Cadmium...Lithium Ion...How do you balance battery life with performance and cost?This book shows you how!Now that ""mobile"" has become the standard, the consumer not only expects mobility but demands power longevity in wireless devices. As more and more features, computing power, and memory are packed into mobile devices such as iPods, cell phones, and cameras, there is a large and growing gap between what devices can do and the amount of energy engineers can deliver. In fact, the main limiting factor in many portable designs is not hardware or soft 410 0$aCommunications engineering series. 606 $aElectronic digital computers$xPower supply 606 $aWireless communication systems$xPower supply 606 $aPersonal communication service systems$xPower supply 615 0$aElectronic digital computers$xPower supply. 615 0$aWireless communication systems$xPower supply. 615 0$aPersonal communication service systems$xPower supply. 676 $a621.384 700 $aShearer$b Findlay$0611200 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910824296903321 996 $aPower management in mobile devices$91135810 997 $aUNINA