基于DSP控制的液晶显示在手持式仪器中的应用

根据点阵液晶显示器TFT3224-3.5在手持式仪器中的应用,提出了一种基于数字信号处理器(DSP)控制液晶显示的实现方法。针对液晶显示控制系统中遇到的大量数据的实时高速传输问题,采用具有快速计算能力和强大信息处理能力的TMS320F2812 DSP芯片。具体介绍了仪器的系统组成和DSP芯片及TFT3224-3.5的功能特性,并提出以TMS320F2812为控制核心的硬件电路,给出了C语言实现软件设计的具体方法。系统工作稳定,直观。     

基于嵌入式Win CE系统的电能质量监测仪

为了提高供电质量,保证电网和供电设备安全、经济、可靠运行,设计了一种新型基于嵌入式Windows CE系统的电能质量监测仪。系统选用TI公司生产的具有高速运算处理能力的DSP（TMS320F2812）对电网电压、电流进行数据采集、分析和处理,并通过CAN总线通信将相关数据传给监控模块;监控模块采用S3C2410 ARM处理器;用嵌入式Windows CE操作系统进行调度;通过彩色液晶触摸屏将数据实时显示。系统的高速数据处理能力和实时性等优点使其具有很好的使用价值和良好的发展前景。     

彩色液晶显示器在压铸机实时压射控制器中的应用

介绍了一种型号为TFT6448-5.7的彩色液晶显示器在压铸机实时压射控制器中的应用.文章结合该型号液晶在压铸机实时压射控制器设计中的应用,对基于DSP的图形液晶显示的研究做了一定的探讨,分析了基于DSP的图形液晶显示器的硬件电路以及程序设计.利用CCS开发环境,完成了显示程序的编写和调试.此外,笔者还提供了该项目中核心处理芯片TMS320C2812型号DSP和彩色液晶TFT6448-5.7的连接电路,方便对照和理解程序.     

TMS320F2812与液晶模块LCM3202401的软硬件接口设计

给出了基于SED1335的液晶显示模块LCM3202401在DSP系统应用中的一种硬件连接设计方案,描述了LCM320240在TMS320F2812系统应用中的硬件设计方法,给出了LCD的初始化C语言程序,并在实际电路中进行了验证。     

图形液晶显示模块G121C在等离子体激励源中的应用

为了方便地研究等离子体激发过程的优化及控制,设计了等离子体激励源的液晶显示系统.结合图形液晶显示模块G121C与C8051F020,实现了系统相应的硬件电路和控制程序.结合G121C中集成液晶控制器SED1335的丰富指令系统,可以实现图文混合显示,并进行波形的平滑滚动.从而实现等离子体激励频率、功率、反射系数和驻波比等的动态显示,为等离子体激发的研究以及应用研究建立了良好的人机界面.     

彩色液晶显示器在无功补偿谐波抑制装置中的应用

本文提出了用于无功补偿与谐波抑制装置显示模块的一种智能液晶显示器设计。指出了无功补偿与谐波抑制装置显示的特点和对显示功能模块的要求。阐述了单片机与液晶显示器(VK63)接口的硬件及软件设计。介绍了DSP完成数据转换算法程序流程。解决了液晶显示速度缓慢的问题。     

基于FPGA的LCD液晶动态显示驱动程序的设计

为了提高工业生产过程中不同参数的可读性及显示的实时性,提出一种采用FPGA器件来实现LCD液晶动态显示的控制方法。在整个设计过程中,完成了显示系统的硬件设计,同时也实现了液晶动态显示驱动程序的设计。驱动程序主要包括A/D转换控制模块和LCD动态显示输出控制模块,利用Quartus II软件内嵌的Signal Tap II Logic Analyzer逻辑分析模块对液晶动态显示驱动程序进行了实时测试,结果比较准确;同时也对现场的模拟电压值进行了实际硬件系统的测试,并通过LCD1602读取到了较为准确的电压数据,因此该动态显示系统的设计具有一定的应用价值。     

基于DSP的电子测量装置的液品显示模块设计研究

针对传统的电子测量装置在实际应用中暴露出来的只能采集测量数据却无法实时波形显示的弊端,论文主要探讨设计了基于DSP的电子测量装置的“数字示波器”模块一液晶显示模块．在分析了示波器的基本原理的基础上,提出了该液晶数显系统的工作原理,并重点而详细的给出了电子测量装置数显示渡模块的功能逻辑与硬件电路的设计方案,从而为电子测量装置所测量采集到的数据的实时波形化显示提供了有力的技术保障．同时对于电子测量装置的便携化、数字显示化的设计与应用,都具有一定的借鉴意义。     

单片机液晶显示系统的设计

以C8051F单片机和液晶显示控制器KS0108为核心,设计了单片机控制的液晶显示系统。重点研究了图形的动态显示技术,介绍了液晶显示模块的硬件、软件特性。文中设计的电路在C8051F020单片机仿真实验系统上进行了仿真,实验结果表明,设计达到了预期目标。     

基于DSP的液晶显示的应用与实现

介绍了一种基于DSP控制的液晶显示屏的设计方法.以OCM12864图形点阵液晶显示模块为例,给出了TMS320LF2407对显示屏进行控制的硬件接口电路,C语言实现液晶字符显示,并给出了软件设计流程图及具体程序代码.实验证明,系统具有良好的显示效果.     

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.     

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.     

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.     

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