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39021.通过芯片能量计数器稽核线性代数能源消耗
[计算机、通信和其他电子设备制造业] [2013-11-13]
Despite the move toward chip multiprocessing in the mid-2000s, the problem of machine energy consumption is still a prevalent and growing problem within the computing sector. To evaluate energy consumption at the application level,new microprocessor designs have now exposed a handful of hardware counters that are able to measure energy directly, avoiding many limitations of previous techniques.
关键词：芯片计数器；能量和功率测量；线性代数
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39022.物联网产业资讯动态监测——2013年第10期
[计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2013-11-12]
物联网产业是指涉及数据采集、传感器网络组网和协同信息处理、网络通信、智能处理、系统集成、信息安全等各种活动的集合，涵盖传感器芯片、微能源等核心基础产业，传感器、射频识别（RFID）为主的感知制造业，通信网络设备制造、传感器网络设备制造以及机器到机器（M2M）网络设备制造等为主的基础网络制造业，和提供网络传输、信息处理以及运营服务等的应用服务业等。
关键词：物联网；产业资讯；动态监测
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39023.超速的半导体激光源
[计算机、通信和其他电子设备制造业] [2013-11-10]
This chapter reviews recent technological progress in the development of ultrafast light sources for achieving small footprint and low-power consumption optical transceivers. The focus is on various important light sources, for example, directly modulated diode lasers with high optical-gain materials, low-chirp externally modulated diode lasers, and ultrafast diode lasers with new structure and modulation scheme. The coverage of the topics starts with an in-depth theoretical treatment of key characteristics and dependences, illustrates typical realizations of ultrafast diode lasers and integrated laser-modulators, and includes relevant operation and performance characteristics as well.
关键词：电子信息；半导体；激光源；超速
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39024.线性半导体光纤放大器
[计算机、通信和其他电子设备制造业] [2013-11-10]
The chapter reviews properties and applications of linear semiconductor optical amplifiers (SOA). Section 12.1 covers SOA basics, including working principles, material systems, structures and their growth. Booster or inline amplifiers as well as low-noise preamplifiers are classified. Section 12.2 discusses the influence of parameters like gain, noise figure, gain saturation, gain and phase dynamics, and alpha-factor. In Sect. 12.3, the application of a linear SOA as a reach extender in future access networks is addressed. The input power dynamic range is introduced, and measurements for on-off keying and phase shift keying signals are shown. Section 12.4 presents the state of the art for commercially available SOA and includes a treatment of reflective SOAs (RSOA) as well.
关键词：电子信息；半导体；光纤；放大器
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39025.自发辐射率增强光学天线的使用
[计算机、通信和其他电子设备制造业] [2013-11-07]
The miniaturization of electronics has relentlessly followed Moore’s law for the past several decades, allowing greater computational power and interconnectivity than ever before. However, limitations on power consumption on chip have put practical limits on speed. This dissertation describes the role that optical antennas can play in reducing power consumption and increasing efficiency and speed for on-chip optical interconnects.High speed optical communication has been dependent on the laser for its narrow linewidth and high modulation bandwidth. It has long outperformed the LED for both practical reasons and its suitable physical characteristics.
关键词：光学天线；作用；自发辐射率；高速光通信；激光
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39026.数字调制发射机的效率增强的设计与分析
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2013-11-07]
The last decade has witnessed a tremendous growth in wireless communications. Consumer demands for battery-operated mobile devices with versatile, high data-rate communication capabilities that are of low cost, small form-factor and long operating cycle have motivated the research on fully-integrated, back-o -effcient and coexistence-friendly wireless transceivers in CMOS VLSI technology. However, the full integration of an ecient CMOS power ampli er (PA) into such a transceiver is still among the most difficult challenges towards a true System-On-Chip (SOC) solution. This thesis investigates the PA eciency enhancement techniques for a complete power transmitter system that is fully-integrated and coexistable.
关键词：数字调制发射机；无线通信；增强效率
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39027.自主导航和防撞机器人
[汽车制造业,计算机、通信和其他电子设备制造业] [2013-11-07]
In the last 50 years, information technology has automated many jobs like word processing, mathematical calculation and data retrieval. However, as driving a car is much more difficult than such simple jobs, it has always been a dream to do so autonomously with a computer. With the development of related technologies, people have begun significant work on making this dream a reality.For automakers, it is more profitable to invest in a mature market – semi-automatic vehicles. However, this project aims to develop a fully automated driving system that is profitable in the market.
关键词：信息技术自动化；GPS驱动器；自动驾驶系统
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39028.银行行业：借助流程银行平台，拓展银行IT服务
[信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业,金融业] [2013-11-07]
公司传统上以电子文档影像业务、电子商务和信息安全三大软件产品创业，随后在金融IT遇到瓶颈时开拓环保领域，并逐步确立了金融IT与环保科技业务并举的战略。公司作为金融软件提供商，以金融行业IT设作为自己的主营业务发展方向，形成软硬件和IT服务综合的银行IT 解决方案提供商。
关键词：金融IT；软件业务；硬件设备；支付器
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39029.Chisel中的硬件建设
[计算机、通信和其他电子设备制造业] [2013-11-06]
Chisel is designed to be a hardware construction language so any design in Chisel will always have a well defined mapping to low level hardware blocks. Chisel’s core programming features allow users to accurately describe hardware circuits and can be easily extended for higher level hardware designs. This paper categorizes Chisel hardware construction into three levels and discusses the merits and drawbacks of each level.
关键词：硬件建设；Chisel代码
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39030.超快的垂直外腔面发射半导体激光器
[计算机、通信和其他电子设备制造业] [2013-11-05]
Almost a decade since the first report of a sub-500-fs mode-locked VECSEL we see a rapid growth of interest in this field, with many new results; shorter pulses, enhanced power levels, new spectral regions, improved device structures, and steady growth of physical insight. However, it is worth noting how much is still not understood. The SESAM structures used with these lasers vary over a huge range in material and design: so that mechanisms and techniques tested for mode-locked VECSELs in one material system may not be applicable to devices in another. With so few data points, even now, it is difficult to draw conclusions that are either firm or general.
关键词：电子信息；半导体；激光器；面发射
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