感受灰阶4ms——优派VX724 LCD试用手记

对于游戏玩家来说，最关注的LCD参数非“响应时间”莫属。目前市场上的LCD，都开始采用“灰阶响应时间”这样一个新的概念，那么什幺是“灰阶响应时间”呢？具备4ms灰阶响应速度的优派VX724又有何特长呢?     

基于VB.NET的无线电设备综合测试平台

无线电设备的测试需要较多的专业知识,而且步骤繁琐.为简化无线电设备的测试过程和缩短测试时间,以VB.NET为基础研究了一种无线电设备综合测试平台.该平台能够自动控制各种无线电通信设备,实现各种参数的自动测量和处理,并自动完成数据的记录及报表的生成.使用该平台可以极大地简化人工操作的复杂度、缩短测量时间并进一步提高测试结果的准确性和权威性.     

巧辟蹊径，让我们告别拖影!与BenQ工程师谈插黑技术的实现

你的液晶够快吗？每年我们都在重复地问自己这个问题．若从黑白响应时间40ms的LCD显示器算起．我们已经经历过黑白24ms、 黑白16ms、灰阶12ms，灰阶8ms;灰阶4ms、灰阶2ms甚至实验室里面的灰阶1ms……．不过到头来我们发现LCD显示器的效果与CRT显示器还是有很大区别．响应时间已经足够快，但是依然有拖影相伴．这是为何？     

硬件

灰阶响应时间和响应时间的区别最近想购买一台LCD用于打游戏,在选购时发现很多产品标注的是5ms响应时间,而另外一些产品标注的是2ms灰阶响应时间,后者数值小会不会更好一些?     

雅致的性能先锋——BenQ FP91V液晶显示器

LCD市场近期的热点已逐步向19英寸倾斜。大尺寸显示屏所带来的视觉感受自不必说,其销量迅速提升也出于各厂商的降价举措。与此同时,灰阶响应时间也成为近期LCD最热门的讨论话题。对于游戏玩家而言,响应时间过慢产生的“拖影”现象一直是阻碍他们购买LCD的重要原因,而灰阶响应概念的提出,为LCD在这方面的技术发展可行性提出了正式的依据。BenQ近期推出的19英寸LCD产品FP91V,由于具备了灰阶4ms的响应时间,因此成为了热点之间的交集。     

液晶新标准——灰阶响应时间

响应时间是液晶显示器重要指标之一,从早期的上升/下降响应时间;到后来的全程响应时间;再到现在的灰阶响应时间,响应时间的多少一直都是LCD厂商大力宣传的产品卖点。因此我们看到,2002年,25ms是主流液晶显示器的标准;2003年,16ms是主流标准;2004年,12ms和8ms是主流标准;而到了2005年,拥有灰阶8ms、5ms、4ms响应时间的产品陆续进入了我们的视线,俨然成为了液晶显示器的新标准,下文就带您了解灰阶响应时间这个概念。一、响应时间的由来要了解响应时间的由来,必须先了解液晶显示器的成像原理。因为液晶分子本身无法发光,所以需要在液晶面板背…     

极速体验——优派VX922 2ms 19英寸LCD

响应时间一直是LCD厂商必争之地,从25ms到开始普及之路的16ms、昙花一现的12ms、时下主流的 8ms……直到今日的灰阶2ms,仅仅3年时间,LCD厂商就推出了在响应时间上完全满足苛刻要求的产品, 加速了行将就木的CRT的死亡。现在,就让我们一起来看看优派VX922——这一拥有灰阶2ms极速响应时间的LCD有何过人之处。     

响应时间5毫秒——BenQ发布全球首款灰阶LCD FP71V+

1月5日,BenQ在京发布了全球首款灰阶5ms响应时间的17"液晶显示器FP71V+。此次,BenQ定义的灰阶响应时间实质是LCD显示屏上从一种色彩变换到另一种色彩的响应时间,它颠覆了传统的液晶面板从黑到白响应时间的计算方式,并突破了液晶面板8ms的响应时间极限。当日同期发布的还有全球首款灰阶6ms的19"液晶显示器FP91V+和全球首款19"灰阶8ms液晶显示器FP91E。LCD较之CRT,色彩显示一直是难于突破的弱项。从传统8ms到灰阶5ms的升级不只是数字上的差距。BenQ中国业务区显示器产品经理田芝颖介绍,以前俗称的响应时间只是基于黑白转换的时间标…     

1ms响应时间还是有拖影，怎么办？LCD反视觉残留技术即将登场

目前LCD的响应时间已降至灰阶2ms,甚至1ms,但世界顶级游戏玩家仍然坚持使用CRT显示器。这是因为“即使LCD的响应时间降到0.1ms,我们可能还是会看到拖影。”[编者按]     

19金长城T191A Plus液晶显示器 色彩引擎引领大屏风暴

屏幕永远是越大越好,因为它可以给你更多的显示空间,高分辨率也可以支持HDT V,最简单的道理,至少你桌面上的图标可以多摆一些。色彩与响应时间金长城T191A Plus是与T171A Plus同期推出的19英寸LCD,它同样采用“色彩引擎”技术。T191A Plus的灰阶响应时间仅为8ms,这样可以更好地     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.