手机电视发展趋势浅析

本文介绍了手机电视的现状,阐述了手机电视的特点,分析了手机电视迟迟未能广泛应用的原因,展望了手机电视的发展趋势,探讨了手机电视的发展进程。     

山西省多媒体手机电视技术发展的思考

介绍了手机电视的概念及分类,对移动流媒体手机电视和广播式手机电视标准进行了比较,阐述了我省手机电视发展的现状,并对未来我省手机电视技术的发展方向进行了探讨和分析。     

手机电视终端架构分析

手机电视终端是整个手机电视系统中最前端的设备,直接面向手机电视用户,是关系到能否快速推广手机电视业务、向用户提供良好、一致的用户体验的关键设备。本文介绍了手机电视终端软硬件结构,并结合中国移动通信研究院提出的手机电视业务解决方案,对如何增强手机电视终端客户端软件的移植性进行了分析。     

三网融合助力手机电视

文章对国内已有的几种手机电视业务做了介绍,阐释了现阶段手机电视用户群体特征,分析了前期手机电视业务发展中遇到的问题,探讨了电信运营商对于发展手机电视的利益诉求,并对在新形势下如何发展手机电视业务提出了一些可行性建议,做出手机电视业务必然会得到良好发展的结论。     

国内手机电视发展综述

手机电视是在手机上收看电视节目的业务,通过介绍手机电视的实现方式、业务发展以及主要标准,对国内手机电视的发展进行了综述,结合对国内手机电视发展中存在问题的分析提出了一些看法,并对国内手机电视发展的前景作了展望。     

手机电视标准研究

随着移动数据业务的普及、手机性能的提高以及数字电视技术和网络的迅速发展,手机电视业务渐渐浮出水面。本文针对手机电视业务,探讨了手机电视的标准,并讨论了手机电视标准的发展趋势。     

未来电信业十大热点业务

1、手机电视 手机电视是利用手机终端看电视的业务,融合了移动通信和广播电视的特征,随着移动通信网向高速网络演进,手机电视率先以流媒体的形式出现,欧美及亚太地区几乎所有的主流移动运营商都开展了流媒体手机电视业务。为了解决移动网络在承载手机电视业务时所面临的容量、传输质量等问题,运营商开始广泛关注利用广播网实现的手机电视技术。     

未来电信业十大热点业务

1、手机电视 手机电视是利用手机终端看电视的业务,融合了移动通信和广播电视的特征,随着移动通信网向高速网络演进,手机电视率先以流媒体的形式出现,欧美及亚太地区几乎所有的主流移动运营商都开展了流媒体手机电视业务。为了解决移动网络在承载手机电视业务时所面临的容量、传输质量等问题,运营商开始广泛关注利用广播网实现的手机电视技术。     

基于广播网和移动网结合的手机电视技术探讨

介绍了手机电视的实现技术,提出了一种结合广播和移动通信网络的手机电视解决方案,设计了相关业务模型;并从手机电视业务给移动通信运营商带来的机遇,以及手机电视在国外的市场调查等角度,展望了手机电视业务的前景.     

基于Windows Mobile平台的手机电视终端解决方案

手机电视终端是整个手机电视系统中最前端的设备,直接面向手机电视用户,是关系到能否快速推广手机电视业务、向用户提供良好、一致的用户体验的关键设备.介绍了手机电视终端软件架构,并结合相关流程图和接口函数对此架构进行了详细描述.     

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