计算机图形学相关专利技术综述

对计算机图形学的发展历程进行了回顾,介绍了其发展的两个阶段:现代图形学发展阶段以及计算机图形学高速发展阶段中比较有代表性的成就.结合专利申请的现状分析了计算机图形学的热点技术,并简要分析了计算机图形学的发展趋势,希望对计算机图形学相关专利申请与审查有所帮助.     

裸眼3D显示技术专利分析

随着3D显示技术领域的发展,裸眼3D显示技术成为其中一个重要的研究方向和未来的发展趋势.通过研究国内外裸眼3D显示技术的发展现状,对该领域的专利进行统计,从全球及中国的专利申请趋势、来源国和目标国申请分布以及技术构成等方面对裸眼3D显示技术的总体专利态势进行分析.     

网络电视机顶盒的专利申请分析

介绍了网络电视机顶盒的定义、网络电视机顶盒的中外发展状况和专利申请情况,利用中国国家知识产权局的专利检索与服务系统进行相关专利的检索和专利分析,主要从全球历年专利申请量和技术生长率、专利申请人区域分布、重要申请人的历年专利申请量几个方面来对相关专利进行定量分析,对网络电视机顶盒的未来发展进行了解析.     

计算机图形学专利保护客体审查标准对比分析

对计算机图形学专利申请审查中保护客体的问题进行了探讨,比较了国内与美日欧在该问题上的处理方式的异同,并提供了相关的案例进行对比分析.在此基础上,从专利法立法本意出发,认为随着科技和经济的发展,将计算机图形学认定为属于专利法意义上的技术领域,从而使大部分涉及该领域的专利申请属于保护客体是符合专利法立法宗旨的.     

超高清电视技术的专利申请分析

介绍了超高清电视的含义、超高清电视的中外发展状况和专利申请情况,利用中国国家知识产权局的专利检索与服务系统进行相关专利的检索和专利分析,主要从全球历年专利申请量、技术原创国申请量分布、重要申请人的历年专利申请量以及专利申请目标国分布几个方面来对相关专利进行定量分析,对超高清电视的过去、现在及未来的发展状况进行分析.     

显示领域GaN发光二极管概述与专利分析

介绍了氮化镓材料的发光二极管的工作原理,并以氮化镓发光二极管在国内外专利申请的数据为分析样本,从氮化镓发光二极管专利申请的时间、国家、技术概况等角度进行研究,分析了氮化镓发光二极管的技术发展现状,介绍了最早的相关专利,给出了申请量分布图、当前重要申请人介绍以及中国在该领域内的发展状况以及未来的发展趋势.     

光刻机照明系统专利分析

为了解光刻机照明系统的技术发展方向和技术研究热点及技术成熟度,并为科研人员提供技术参考,对光刻机照明系统技术专利文献进行了检索,并对专利文献数据进行了统计分析,分别从专利权人分布、国际专利分类号分布、专利申请国分布和年度发展趋势及技术生命周期等几个方面进行统计分析,揭示了国内外光刻机照明系统专利申请的主要专利权人依次为阿斯麦、尼康、佳能和蔡司,专利文件分布的主要技术领域为半导体器件和其部件的制造处理等方面,专利文件的年度申请在2004年出现最高峰,之后开始下降,并结合技术生命周期曲线图,指出光刻机照明系统技术已经历了从萌芽、发展、成熟阶段。同时进行了重要专利文件的挖掘,分析了技术研究热点,追踪核心专利文件的技术发展脉络;并对偏振照明技术作出技术-功效矩阵分析图,分析出技术研究热点,并提出我国科研人员应利用未在我国进行保护的重要专利技术,为我国企业提出了专利申请的相关建议,节省研发时间。     

虚拟环绕声技术的专利申请分析

介绍了虚拟环绕声的定义、虚拟环绕声技术的中外发展状况和专利申请情况,利用中国国家知识产权局的专利检索与服务系统进行相关专利的检索和专利分析,主要从全球历年专利申请量和技术生长率、技术原创国申请量分布、专利申请目标国分布几个方面来对相关专利进行定量分析,对虚拟环绕声技术的应用前景进行了解析.     

虚拟环绕声技术的专利申请分析

介绍了虚拟环绕声的定义、虚拟环绕声技术的中外发展状况和专利申请情况,利用中国国家知识产权局的专利检索与服务系统进行相关专利的检索和专利分析,主要从全球历年专利申请量和技术生长率、技术原创国申请量分布、专利申请目标国分布几个方面来对相关专利进行定量分析,对虚拟环绕声技术的应用前景进行了解析.     

电视广播字幕处理技术专利分析

对于电视广播字幕处理技术领域的专利申请,从专利申请量分布情况、主要申请人的专利特点、申请人国别分布三个方面进行了详细的讨论和分析.通过研究相关的统计指标和重要申请人的发明内容,给出了该领域技术的发展趋势,也明晰了国内外企业之间的技术差异,从而为国内企业的发展提供了参考.     

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