基于单片机实现FPGA的加载配置

讨论了基于SRAM技术的FPGA可编程逻辑器件的编程方法，并以Altera公司FLEX10系列器件为例，提出一种利用单片机时可编程逻辑器件进行在系统配置方案。该方案成本低廉、简单易行，能在系统复位或上电时自动时器件编程，有效地解决了基于SRAM的FPGA器件掉电易失性问题。     

点阵式液晶显示器的特点及工艺流程

作为一种新型的输出装置，点阵式液晶显示器以其优异的性能价格比越来越受到人们的重视。从实际应用的角度介绍了国产ＴＭ系列点阵式液晶显示模块的特点，引脚功能，操作时序，与计算机系统接口方法及其编程方法。     

AT89系列单片机及其编程

文章介绍了AT89系列单片机的性能特点和编程算法,并给出了一个可与任何一种MCS-61系列单片机开发系统配接的编程电路。     

内螺纹的铣削加工

内螺纹的铣削加工是一种比较先进的加工方法。本文介绍了内螺纹铣削加工的特点和适用范围以及刀具的选用及数控编程的方法。结合实例说明了数控编程的加工方式、铣削参数的选择并给出了Siemens8系列系统的具体程序。     

93系列串行EEPROM的使用

文章介绍了９３系列的串行ＥＥＰＲＯＭ中常见的几种芯片的用法，以９３Ｃ０６为例详细叙述了该系列芯片的引脚组织、工作机制、命令和数据结构，并以此为基础给出了编程的基本方法。对其他几种ＥＥＰＲＯＭ，也作了充分的介绍。     

NI推出Linux系统专用的数据采集驱动软件

2004年11月美国国家仪器有限公司(National Instruments，简称NI)宣布推出NI—DAQmx Base，这是一种开放的Linux驱动程序和编程接口，用于NIE系列     

dsPIC30F6010单片机的原理及应用

Microehip公司推出的dsPIC30F系列单片机是一种集16位单片机控制特点和DSP功能于一身的新型芯片。文中介绍了dsPIC30F6010的基本特点、硬件结构和指令特点，分析了dsPIC30F6010编程开发应用上的技术特点，并给出了一段具体的编程示例。     

安捷伦推出具备前面板编程能力的三路输出电源

安捷伦科技公司日前宣布推出U8030系列直流电源，它是同类产品中唯一具备前面板编程能力的三路输出电源。在台式或工业环境中，前面板模拟编程功能可让用户无需具备深厚编程知识即可自行设置与控制关键输出参数，从而能够节省时间和降低复杂性。U8030系列直流电源凭借这一功能及其他增强能力，适用于裕量测试、老化或可靠性测试以及通用电子产品制造。     

SAM8系列S3C825A型单片机及其软件设计

以S3C825A为例介绍三星公司SAM8系列单片机的内部结构及其软件开发环境．详细描述采用混合编程法来对SAM8系列单片机进行软件设计的一般方法，最后给出用混合编程法对S3C825A进行软件设计的具体应用实例。     

单芯片提供高级模拟功能和数字处理能力，无需其它产品的复杂编程

Duc702x系列适合用于具有基本数字编程需求的高精密测量和控制以及数据采集系统。该系列IC将模拟功通能和数字编程能力集成在一颗单芯片上，从而使其适合处理要求比较严格的鲁棒性工业应用。     

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.     

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.     

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.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.     

Call for Papers

正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks