ISP1362在基于FPGA的红外成像系统中的应用

ISP1362是飞利浦推出的一款USB可编程控制芯片,其内部集成了一个高级主控制器,一个外设控制器,主机和设备控制器兼容USB2．0协议,支持12Mb／s的全速传输和1．5Mb／s的低速传输;芯片有三种工作模式,即主机控制器模式、设备控制器模式和OTG模式。主要针对USB控制芯片ISP1362在基于FPGA的红外成像系统的数据采集中的应用,利用VerilogHDL语言完成其在设备控制器模式下的功能,具有很好的可移植性。     

基于AVR单片机的ISP1362 OTG设计

基于标准的USB2．0协议,以AVR单片机ATmega32作为核心、ISP1362为USB-OTG物理接口芯片,设计了一种USB OTG主／从机的系统,该系统能满足USB数据存储与交换的需求,可以实现各种不同的设备或移动设备间的通信。     

USB OTG控制芯片ISP1362的软硬件设计方法

自USB On-The-Go技术于2001年底推出之后，许多半导体公司陆续推出了支持这一新型标准的芯片解决方案，其中ISP1362主机及外设控制器就是飞利浦公司推出的OTG解决方案系列产品中的一款？文中介绍了ISP1362的芯片结构和ISP1362与外部微处理器的PIO和DMA两种总线接口连接模式，最后结合飞利浦公司的FlexiStack OTG软件包，给出了基于ISP1362的嵌入式系统的软件架构，并对该软件架构进行了简要分析。     

USB接口芯片ISP1362及其在SOPC中的应用

ISP1362是Philips公司的一款USB接口芯片,内部有3个USB控制器——主机控制器、设备控制器和OTG控制器,可以设置为USB主机模式、设备模式以及OTG模式,因此具有较强的灵活性,尤其是OTG的工作模式,使得许多设备可以脱离PC机进行数据传输和通信。介绍ISP1362的常用功能,即该芯片作为主机控制器时的使用,并以USB鼠标为例,介绍了他在SOPC中作为USB主机模式的应用,并能试验板的液晶屏上看到其移动的方向,完成了嵌入式系统的外设功能。     

基于USB OTG控制芯片ISP1362的软硬件设计原理

USB On-The-Go技术于2001年年底推出,之后,许多半导体公司陆续推出了支持这一新型标准的芯片解决方案,其中ISP1 362主机及外设控制器就是飞利浦公司推出的OTG解决方案系列产品中的一款.文中介绍了ISP1362的芯片结构和ISP1362与外部微处理器的两种总线接口连接模式,PIO和DMA模式,最后结合飞利浦公司的FlexiStack OTG软件包,给出基于ISP1362的嵌入式系统的软件架构,并对其进行了简要分析.     

支持CEA 936-A的USB收发器ISP1109

ISP1109芯片可支持CEA936-A和Mini—USB模拟卡接口的USB收发器，它完全和USB2．0兼容。其发送和接收串行数据速率有全速12Mbps和低速1．5Mbps两种，支持26MHz的串并行接口（SPI）和400kHz的I^2C总线速度。ISP1109采用HVQFN-32封装，并支持UART。ISP1109内置有模拟开关，可支持模拟音频复接和OTG对话请求协议（SRP），其低功耗模式功耗电流小于20μA，     

高速UWB设备传输系统中的数据采集模块的实现

介绍了一种基于USB总线的数据采集系统的设计方法,采用CYPRESS公司的EZ-USBFX2USB2．0接口的控制器,并和PC机通信且编制出完善的设备应用程序,用于高速UWB设备传输系统中进行文件传输。给出了该应用程序的编制流程,实际测试中,USB接口的速率达到了约300Mbit／s,达到了USB2．0规范所要求的高速传输的要求。     

SE8901 GPS接收系统

Oxford推出在USB2．0端口和外部SATA存储设备间提供透明数据传输的桥接芯片0XU921S：采用128引脚QFP封装，带有集成的SATA Phy、USB2．0Phy和ARM7TDMI处理器；有一个6kB存储USB数据的高速缓存．将数据传输速率提升至480Mbit／s。SATA内核及Phy以1.5GHz运作．提供150MB／s的磁盘接口数据速率：     

USB OTG技术解析

由于被广泛接受，事实上USB已成为外设与PC机及膝上型电脑连接的公认标准。随着便携式设备的日益普及，他们在没有PC机时，彼此之间也能直接通信的需求就随之产生了。OTG解决了这个问题。USB OTG是USB 2．0规范的补充协议，USB OTG的核心特征是一个USB设备在和其他USB设备连接时既可作为主机，也可作为外设。他使USB设备可以在没有PC机的参与下实现彼此间的数据传输。他的提出解决了USB设备之间点到点的通信。本文讨论OTG的主要特性，包括连接器、电缆、双角色设备、主机协商协议HNP、事务请求协议SRP等。     

USB On-The-Go 工作原理分析和应用研究

USB(Universal Serial Bus)经过了9年发展，已经得到了市场的认可，其传输速度达到了最大480Mb／s的惊人地步，而USB OTG(On-The—Go)的推出更是鼓舞人心，其双重角色的强大功能可以使USB设备摆脱对PC的完全依赖。USB OTG是USB2．0规范的补充，他使外设可以在无主机参与的情况下直接互连进行通信工程。本文简单介绍了USB OTG的工作原理，并分析了现在USB OTG的应用情况，重点针对数码相机伴侣存在的问题，作者提出了自己的解决方案。     

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.     

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     

Call for Papers—Feature Topic,Vol.12,No.7,2015

正Information Centric Networking Information-Centric Networking(ICN) is an emerging direction in Future Internet architecture research,gaining significant tractions among academia and industry.Aiming to replace the conventional host-to-host communication model by a data-centric model,ICN treats data content as the first