基于EMV非接通信规范的非接触读卡器设计

本文针对最新版的EMV非接通信规范(Ver.2.6),对非接触读卡器的设计重点和难点进行分析,针对技术点给出相应的解决方法,提出面积对比法来进行天线的最优设计。针对检测的实际环境给出有效的设计调试方法,通过调整信号引出点的方法消除检测和应用中存在的对读卡器接收信号的大扰动。     

Kaleido—X16多画面分割器

Miranda公司的Kaleido—Xl6多画面分割器产品。采用超级静音和3D设计,是中心机房控制、车载控制等应用方面的理想选择。KX-16专为3G／3D视频设计．3Gb／s信号可以支持3D显示模式（SMPTE-425M Level A＆B）,支持并且自动识别多达16路的3G／HD／SD／Analog等视频信号。同时,它也支持DVI和MPEG视频输入,     

基于DS8113芯片的IC卡接口设计

DS8113是美信公司专用于Smart Card(IC卡)的接口芯片,适用于需要满足ISO7816、EMV要求的IC卡读写机具、银行POS终端、消费类机顶盒等。文章介绍了DS8113芯片的特性,详细阐述了针对EMV要求采用DS8113芯片设计IC卡接口电路及设计的注意要点。     

基于ADIS16300的汽车方向盘自由转动量测量系统设计

汽车方向盘自由转动量是车辆安全运行的重要技术条件。针对常规检测设备体积大安装不便的不足,文中设计了基于Analog Device公司MEMS惯性传感器ADIS16300的方向盘转动量测量系统。阐述了ADIS16300传感器进行方向盘转动量测量的原理,采用STM公司生产的cortex-M3微处理器设计了测量电路,并进行了实验测试。在与ZL-1L型转向参数测试仪进行比较分析,表明本文设计的倾角测量系统在汽车静态情况下可以准确地测量方向盘自由转动量。     

EMV96的潜在缺陷和改进意见

EMV96是Europay、MasterCard、Visa提出的目前具有代表性的IC卡交易规范.相当多的IC卡交易系统和规范都建立EMV96的基础之上.本文系统地分析了EMV96的交易协议中的安全机制,得出EMV96用以实现应用的一些重要安全性假设;进一步分析表明:EMV96的一些假设使得EMV96不能很好地满足交易的四个条件,在不改变交易流程的前提下,针对EMV96的潜在缺陷,提出相应的改进意见.     

快速触发器设计重点剖析

IC设计内含语言级(Language Level)、门级(Gate Level)及晶体管级(Transistor Level)三种电路设计层次.电路的数字合成(Digital Synthesizing)产生物理电路所需要的输出格式,以及选择生产制造的工艺、厂商等.本文延续前两期杂志的主题,进一步剖析功能电路在门级的实际电路设计,针对快速数据触发器与快速转态触发器的设计进行详细说明.     

一种多倍频选择的高倍频锁相环频率合成器

文章描述了一个基准频率为32 768 Hz的锁相环频率合成器的设计.该频率合成器有1250、1 500、2 000、2 500、3 000等5个倍频选择.电路设计基于1st Silicon 2.5 V 0.25 μm CMOS工艺.Cadence Artist Analog仿真显示,该电路可以实现快速锁定,且具有较小的相位抖动.文章研究和总结了频率合成器系统参数的设计理论,对其各个子电路进行了结构优化,并且按MPW流片要求,进行了版图的布局设计.     

SoC设计语言：SystemC

应用的需求和集成电路工艺的发展促进了复杂的片上系统(SoC)的实现，同时也要求新的设计方法以支持复杂SoC的设计。高效率的软硬件联合设计需要对整个SoC进行更高层次(例如Transaction Level)的抽象以提供更快的仿真速度及更高效率的SoC设计验证方法。本文介绍了一种重要的SoC设计语言：SystemC，以及基于SystemC的Transaction Level模型和使用Transaction Level模型进行SoC的软硬件联合设计的方法。     

X-RAY检测技术在PCB板中的应用

该文针对PCB板中元器件多样化存在的一些焊点质量检测难点及不同检测条件的限制,简明扼要地介绍X-ray检测技术的原理,通过对常见器件种类缺陷图片检测分析,总结出各种缺陷在检测时的注意事项,提出最优检测流程,从而提高缺陷检测能力。     

ADI推出高性能Blackfin处理器

Analog Devices最近推出一系列双核、1GHz处理能力的Blackfin处理器。ADSP-BF608和ADSP-BF609针对嵌入式视觉应用进行了优化,并均配备一个称为＂流水线视觉处理器（PVP）＂的高性能视频分析加速器。PVP由一组可配置的处理模块构成,设计用于加速多达5个并行图像算法,从而实现极高的分析性能。     

金融IC卡认证体系及其安全性分析

IC卡固有的安全性成为国外EMV迁移和国内PBOC2．0金融IC卡迁移的主要动力之一。论文通过讨论当前主流的IC卡认证体系中IC卡数据认证、持卡人认证、交易认证和安全报文这4个主要部分,分析了该认证体系的安全性。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output（MIMO） communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.