CEA为DTV产品扩展定义

目前将数字电视 (ＤＴＶ)定义为４∶３宽高比标准的定义 ,可望及时加进假日购买季节的新产品中。为响应美国市场上以各种价位可买到的新ＤＴＶ产品的激增 ,美国消费电子协会 (ＣＥＡ)８月３１日宣布了目前消费者可买到的ＤＴＶ产品的较为详细的定义。ＣＥＡ希望 ,新的产品定义以及辨认每类产品的相应图标会为零售商和消费者提供对美国ＤＴＶ市场上各种应选品的明确定义的解释。称为增强清晰度电视(ＥＤＴＶ)的新型数字产品是在高清晰度电视 (ＨＤＴＶ)与标准清晰度电视 (ＳＤＴＶ)之间的电视。根据ＣＥＡ发言人的说法 ,ＥＤＴＶ产品是显示４…     

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国内外动态▲泰克安装第一个ＨＤＴＶ分配放大器１９９７年８月２７日，泰克公司宣布了ＨＤＴＶ组件化产品Ｍ９６００系列。这些产品将促进从模拟向数字广播的过渡，使广播者能够建立他们的首批ＨＤＴＶ设施。泰克Ｍ９６００产品包括完整的ＨＤＴＶ系列产品，用于分配和监...     

三星Sync Master520 TFT勇夺最佳产品奖

近日,在《微电脑世界》举行的ＴＦＴＬＣＤ显示器横向评测中,三星公司生产的ＳｙｎｃＭａｓｔｅｒ５２０ＴＦＴ获得了最佳产品奖（ＰＣＷｏｒｌｄＣｈｉｎａＢｅｓｔＢｕｙ）的称号。此次共有７家厂家送来了９款３８１ｍｍ（１５英寸）产品参加评测,从技术应用和功能设计上讲,这些产品完全算得上是目前国内ＴＦＴＬＣＤ显示器的代表。５２０ＴＦＴ凭借其在各方面的完美表现,得到评测人员的一致好评,最终荣膺最佳产品奖。５２０ＴＦＴ外型设计简洁,桌面占用面积少。外型尺寸（宽×高×深,单位：ｍｍ）为４１６×４０４×１９６,净…     

业界风云

ＩＤＴ与新涛半导体合并进一步发展统一的网络语音数据方案迎九 全球领先 的通信集成电 路（ＩＣ）供应商 ＩＤＴ公司４月３ 日在沪宣布： 与国内一家电 信ＩＣ供应商 ──新涛半导 体公司合并。 新涛半导体公 司上海设计分公司不仅能从技术上支持ＩＤＴ公司的通信ＩＣ发展战略,而且能提供更多电信产品,扩大ＩＤＴ在电信产品的市场份额。 此次合并ＩＤＴ公司将耗资８０００余万美元,覆盖战略性专业设计技术,以及对语音处理和传输产品至关重要的数模混合信号电路设计。这将有助于ＩＤＴ公司进一步发展全球网络统一的语音数据解决方案。语…     

TFT技术挑战二十一世纪

本文简要说明什么是ＴＦＴ－ ＬＣＤ, ＴＦＴ－ ＬＣＤ产品的技术特点及其在工业、国防、教育、医疗、交通运输、家电、视像和信息产业中的广泛应用,指出了ＴＦＴ－ＬＣＤ技术发展的美好前景。     

BreezeCOM无线网络产品

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产品信息

泰克公司交付首批ＨＤＴＶ草谷路由器泰克公司（ＴＥＫ）１９９８年９月２日宣布交付了小型和大型两种ＨＤＴＶ路由器产品，即ＰｅｒｆｏｒｍｅｒＨＤ和７０００ＨＤ系列路由器。这些产品的特点是采用了许多先进技术，使它们能够迅速可靠地选择全带宽ＨＤＴＶ信号的路径。...     

多媒体数字信号处理器TMS320C80

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SMT焊点质量的智能评价系统及其软件实现

由表面贴装技术（ＳＭＴ） 形成的产品,其焊点质量与焊点的形态有关。焊点质量直接影响到ＳＭＴ产品的可靠性,在ＳＭＴ生产过程中,如果能够对焊点质量进行实时检测与评价,无疑对提高ＳＭＴ生产率和生产可靠性有重要意义。文中基于焊点形态理论,论述了ＳＭＴ焊点质量评价模糊专家系统的建立,以及用ＤＥＬＰＨＩ语言建立焊点质量评价模糊专家系统的方法。     

SMT焊点质量的能评价系统及其软件实现

由表面贴装技术（ＳＭＴ）形成的产品,其焊点质量与焊点的形态有关。焊点质量直接影响到ＳＭＴ产品的可靠性,在ＳＭＴ生产过程中,如果能够对焊点质量进行地检测与评价,无颖对提高ＳＭＴ生产率和生产可靠性有重要意义。言语中基于焊点形态理论,论述了ＳＭＴ焊点质量评价模糊专家系统的建立,以及用ＤＥＬＰＨＩ语言建立焊点质量评价诉方法。     

论产品合格与合格率的区别与应用

在实际产品生产与质量管理工作中,产品合格与产品合格率的认识不能仅局限于数理统计上的理解.不同的部门与单位对产品合格与产品合格率理解与应用既有相同点又有不同处,这一点在产品质量抽样检验中应该有很清楚地认识与区别.否则,会造成各部门与单位对产品质量分析的思路混乱,不利于产品质量的提高与监督.     

浅谈系统设计在产品设计中的应用

当我们进入21世纪,计算机技术必不可少,计算机技术应用于产品设计,让设计更合理也更完美,最大程度上的符合产品的基本特征,计算机技术为产品设计与发展提供了平台,可以让产品设计的本质利用计算机技术挖掘出来,产品设计风格让人们的生活变得多姿多彩,产品设计是社会发展的重中之重,也是物质产品生产的必备程序之一。产品的优劣主要是由产品设计体现的,计算机使产品设计更加程序化、产业化,极大地丰富了产品物质。怎么样在现代社会中将计算机与产品设计相结合,并对产品设计进行更新与创新,是社会各界都在关注的问题。运用先进的科技,把计算机同产品设计相结合,才能够让计算机在产品设计中的应用发挥巨大的作用,从而丰富我们的工作和生活,让我们的物质生活更人性化、可持续化。     

Modified Booth Multipliers With a Regular Partial Product Array

The conventional modified Booth encoding (MBE) generates an irregular partial product array because of the extra partial product bit at the least significant bit position of each partial product row. In this brief, a simple approach is proposed to generate a regular partial product array with fewer partial product rows and negligible overhead, thereby lowering the complexity of partial product reduction and reducing the area, delay, and power of MBE multipliers. The proposed approach can also be utilized to regularize the partial product array of posttruncated MBE multipliers. Implementation results demonstrate that the proposed MBE multipliers with a regular partial product array really achieve significant improvement in area, delay, and power consumption when compared with conventional MBE multipliers.      

Product line competition

This paper studies product line competition in a simple model of a duopoly. There are two identical firms each of whom must choose a line of product qualities and supply quantities for each product in the line. They face consumers who prefer a higher quality product to a lower quality product but differ in how much they are willing to pay for quality. For the firms, a higher quality product is more costly to produce than a lower quality product. The basic question analyzed is the nature of product line competition. Will the firms choose to segment the market — one firm producing a line of lower quality products and the other firm producing a line of higher quality products — or will they interlace their products? Also, how is consumer welfare affected by these alternative ways of product line competition?     

The product life cycle theory and product line management: the case of mobile phones

This paper applies the product life cycle theory to the issue of product line management with two goals in mind: 1) to understand how product line management evolves over the life of an industry and 2) to compare Klepper's model (1986), which emphasizes economies of scale, with the traditional model of the product life cycle, which emphasizes dominant designs. We find that Klepper's model of the product life cycle theory in combination with the concept of product line management provides a better explanation for the evolution of competition in the mobile phone industry than the traditional product life cycle model. We use Uzumeri and Sanderson's classifications of product variety and change (Uzumeri, 1995) to generalize from the industry case.     

利用负载均衡提升网络性能

阐述了三代不同负载均衡产品的发展，着重分析了第三代负载均衡产品的性能。简要介绍了基于软件的负载均衡产品和基于硬件的负载均衡产品两类产品，并对其性能进行了比较，分析了两类产品的优缺点及存在的问题。在让读者了解到负载均衡产品的发展历程和两类负载均衡产品的相关特性后，又进一步阐述了负载均衡产品的工作原理，及其在处理网络和服务性能，分配资源等方面所表现的优势和应用的意义。     

Augmented product codes and lattices: Reed-Muller codes and Barnes-Wall lattices

This paper concerns the construction of the so-called augmented product codes and augmented product lattices. These are obtained by augmenting product codes or product lattices from certain classes thus obtaining higher dimensional codes or lattices from the same class, respectively. Certain properties of the augmented product construction are derived, and specific construction examples are given. In particular, it is shown that the Reed-Muller codes, the Golay code, the Barnes-Wall lattices, as well as the Leech lattice all have various augmented product constructions.     

Updating a Modular Product: How to Set Time to Market and Component Quality

In the face of shorter product life cycles, designing products with modular component parts can shorten product development time and speed up the introduction of new products in the market. Utilizing stylized models, we examine the reuse/redesign, quality, speed-to-market, and marketing decisions for two consecutive generations of a multicomponent modular product. With modularity that assumes a stable product architecture, each component can be improved by incurring a design cost that is convex increasing in the level of quality. Our study generates the following insights. When development start-up (fixed) cost is negligible, it is profitable to upgrade every component part; otherwise, it is beneficial to reuse some of the existing parts without making any design improvements in order to save on development cost. In an effort to reduce product development time while maximizing profit, we found solid evidence that the productivity level in developing every component part can be a key driver of speed-to-market. Individually, a new product launch time postponement and an R&D budget increase can lead to improvements in component part quality and overall product quality, but our models show that better improvement in quality can be achieved from launch time postponement (budget increase) when product design teams have low (high) product development productivity. Finally, when the marginal cost of producing the new product is equal to that of the old product, it is optimal to remove the old product from the market and sell only the new product.     

基于形态优化的激光快速成型产品设计系统

产品形态是吸引消费者购买产品的重要原因之一,为缩短产品研发周期优化产品设计,研究基于形态优化的激光快速成型产品设计系统。利用形态分析法获取产品形态设计要素,通过眼动追踪技术统计产品形态的眼动数据,采用方差法提取与产品形态关联度高的眼动数据,从而建立眼动追踪数据与设计要素的关系模型,获取形态优化设计结果。根据设计结果运用数据处理软件采集并处理产品数据,并通过反求软件将产品以三维CAD模型形式展示,对三维CAD模型实施切片与程序处理获取产品数控代码,利用激光快速成型技术加载数控代码制作出三维产品。实验结果表明,采用该系统方法可获取用户满意度较高的形态优化产品设计方案,设计效果逼真,且最终设计产品精度均在99%以上,充分验证了该系统的有效性。     

Using a test site for the rapid introduction of 32-kb bipolar RAM

The authors describe the introduction of a 32-kb bipolar RAM. The introduction started with a preliminary phase, using an exploratory test site, followed by a more conventional product test site. Both the cell layout and processing were optimized with an exploratory test site in the early manufacturing cycle. The exploratory test site has yield test structures with different ground rules and cell layouts side by side. The yield detractors and product yields are continuously monitored in the manufacturing line with a product test site in order to enhance defect learning. A number of product test sites are distributed on the product wafer. The test site has the same ground rules as the product. The test-site-aided product introduction doubled the defect learning rate