Dec 31, 2007

some video ebook links

1.Title: Video Codec Design: Developing Image and Video Compression Systems
Author: Iain Richardson
ISBN: 0471485535
http://rapidshare.com/files/21088581/110_0471485535_Video.rar
Password: free4vn.org

2.Title: Video Demystified, Fourth Edition (Demystifying Technology)
Author: Keith Jack
ISBN: 0750678224
http://rapidshare.com/files/21081509/
303_0750678224_JACK__K.__2001_._Video_Demystified_-_A_Handbook_for_the_Digital_Engineer__3rd_ed._.rar
Password: free4vn.org

3.Title: Digital Video Solutions (Solutions)
Author: Winston Steward
ISBN: 192968553X
http://rapidshare.com/files/21087696/1411_192968553X_Digi.rar
Password: free4vn.org

4.Title: Video Coding with Superimposed Motion-Compensated Signals : Applications to H.264 and Beyond(The International Series in Engineering and Computer Science)
Author: Markus Flierl
ISBN: 1402077599
http://rapidshare.com/files/21087711/1409_1402077599_321.rar
Password: free4vn.org

5.Title: Digital Video Broadcasting: Technology, Standards, and Regulations
Author: Ronald de Bruin
ISBN: 0890067430
http://rapidshare.com/files/21087690/1406_0890067430_123.rar
Password: free4vn.org

6.Title: Real-Time Video Compression : Techniques and Algorithms (The International Series in Engineering and Computer Science)
Author: Raymond Westwater
ISBN: 0792397878
http://rapidshare.com/files/21087691/1408_0792397878_efg.rar
Password: free4vn.org

7.Title: Video Data (Innovative Technology Series)
Author: Salima Hassas
ISBN: 1903996228
http://rapidshare.com/files/21087692/1410_1903996228_edc.rar
Password: free4vn.org

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Dec 11, 2007

Ebook--Low Power Methodology Manual[printable]

Ebook share, Thanks to visit my blog!
Low Power MethodologyManual For System-on-Chip Design.
sorry, I can not share this book for some jural reason.
if you are interesting with this book, you can refer http://www.synopsys.com/partners/arm/lpmm/lpmm.html

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Nov 10, 2007

Google搜索在工作上的应用技巧[ 转]

      Google良好的搜索和易用性已经得到了广大网友的欢迎,但是除了我们经常使用的Google网站、图像和新闻搜索之外,它还有很多其他搜索功能和搜索技巧。如果我们也能充分利用,必将带来更大的便利。这里我介绍几个很有用的搜索技巧,在平时搜索中可以结合使用。

  一、限定搜索范围的技巧

  1、文件类型

  有时候我们可能不需要搜索网页文件或者图片,我们可能想要搜索其他类型的问题,比如文档文件(Word,Excel,PPT),Flash文件,甚至是Google地图文件,我们都可以使用"filetype"功能来实现。

  比如我想搜索一篇关于最新加密技术的Word论文,使用Google搜索"filetype:doc 加密技术 "即可得到大量相关信息。我想搜索关于中国的Google Earth卫星图片,那么就在Google中搜索"filetype:kmz china"即可。

  2、指定网站

  有时我们进行网页搜索,想要在某一个指定的网站内搜索感兴趣的内容,这时候我们可以使用"site"功能来限定搜索的网站。

  比如,我想在新浪网上搜索关于世界杯赛程的消息,只需要用Google搜索"site:sina.com.cn 世界杯赛程"即可得到结果。

  如果你想把搜索结果限制在大学的网站之中,可以使用"site:.edu 关键词"。

  通过限定搜索范围的方法,我们可以更快更准确的搜索到我们想要的东西。

  3、其他限定搜索方法

  intitle:搜索关键词(intitle:关键字)只搜索网页标题含有关键词的页面。

  inurl:搜索关键词(intitle:关键字)只搜索网页链接含有关键词的页面。

  intext:搜索关键词(intext:关键字)只搜索网页body标签中的文本含有关键词的页面。

  二、写作辅助小工具

  Google有一些小工具,为我们的日常工作学习提供了很多方便之处。

  1、翻译工具

  Google本身带有中英文翻译的功能,只需输入一个关键词("翻译"或"fy"任选其一)和要查的中(英)文单词,Google会直接显示您要查的单词的英文(或中文)翻译。

  比如我们想要翻译"香蕉"这个词为英文,那么只需要在Google中搜索"翻译 香蕉"或者"fy 香蕉",返回的第一条记录就是翻译的结果。同样,我们搜索"fy banana"可以得到这个单词的中文翻译。

  2、学术词典工具

  我们有时候想要知道一个具体词汇的定义,可以使用"定义"或"define",接着键入一个空格,然后键入您需要其定义的词。

  比如,我们想要知道氨基酸是什么意思,只需要在Google中搜索"定义 氨基酸",就可以找到氨基酸的定义。

  三、改进工作效率

  做为一个公司员工,每天都要关注自己公司和竞争对手的最新消息,怎么才能在最短的时间内获得最多的信息呢?Google可以帮助你。

  Google 快讯是Google的新闻定制自动发送,用户可以定制自己需要的内容,Google会在设定的时间内(即时、每天、每周)给用户发送Google最新搜索到的新闻文章,非常方便,我们就可以用这个功能来跟踪自己公司和竞争对手的最新消息。

  例如我是一家做搜索的开发公司,我需要每天关注自己的竞争对手,因此我只要登录:http://www.google.com/alerts?hl=zh-CN,然后在"搜索字词"中输入"Google","频率"为每天,即可每天收到关于Google的最新消息,同样在"搜索字词"中输入"百度",可以获得百度的最新消息。

  当然,搜索关键字不只是公司,开动我们的脑筋,我们可以用这个工具跟踪任何信息,比如输入某个名人的名字,可以追踪这个名人的最新消息和新闻,搜索某个行业名称,可以追踪这个行业的相关新闻,搜索某个新闻事件,可以得到这个事件的最新报道。

  因此,我们只要灵活掌握和运行Google的搜索技巧,那会给自己的工作和学习带来相当大的提升,使得自己的事业能够更上一层楼。

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Sep 15, 2007

A IPcore Introduction[just as a template]

BodaHx8 - MPEG-2 MP + H.264 HP + VC-1 AP + MPEG-4 ASP (DivX) + RV8/9/10 + JPEG codec (1920*1080*30)
Overview
     Chips&Media's BodaHx8 is a high-performance and optimally-unified multi-standard decoder IP that performs three major decoding functionalities such as H.264, MPEG-2, MPEG-4 (DivX), RV8/9/10, JPEG codec and VC-1 up to HD resolution at 30 frames per second. Under our technologies, BodaHx8 needs ultra low-power and ultra low clock frequency based on Chips&Media's advanced video decoding hardware architecture, while BodaHx8 provides decent flexibility in error concealment, error resilient, and multi-resolution/multiplex decoder control based on exclusively designed video core processor.
Features
  • Standards Compliance - decoder only
               
  • ISO/IEC 14496-10 AVC BP@L4, MP@L4 ,HP@L4.1
               
  • ISO/IEC 13818-2 MPEG-2 MP@HL
               
  • ISO/IEC 14496-2 MPEG-4 ASP (DivX)
               
  • SMPTE VC-1 SP, MP, AP@L3
               
  • RV8/9/10
               
  • JPEG
  • Benefits

  • Interface
               
  • Host interface: AMBA3 32-bit APB interface
               
  • External memory interface: AMBA3 64-bit AXI Interface or AMBA2 AHB interface
               
  • Customized interface for optimally designed bus multi-master environments can be available
               
  • Decoding tools
               
  • Support all features of the standards
               
  • Deblocking filter for post-processing
               
  • State-of-art error concealment strategy
               
  • Simultaneous multi-standard/multiple decoding is possible
               
  • Error resilience tools
               
  • Optional: Built-in rotation/mirroring function to remove redundant bus-loading: 90 x n degree rotation (n=0,1,2,3); Vertical/horizontal mirroring
  • Performance
               
  • HD(1920X1080) decoding @ 150MHz
               
  • Required host processor resource to run: less than 1 MIPS

    Deliverables

  • RTL source code
  • IP integration guide & user guide
  • Test-bench
  • Evaluation Board
     
    Tech Specs
      Part Number
      BodaHx8
      Short description
      MPEG-2 MP + H.264 HP + VC-1 AP + MPEG-4 ASP (DivX) + RV8/9/10 + JPEG codec (1920*1080*30)
      Provider:
      Chips&Media, Inc
      Portability
      FPGA
      ASIC Target
      TSMC@90um
      FPGA Target
      Xilinx Virtex 4
      Type
      Soft
      Compliant Standard
      MPEG-2 MP@HL / MPEG-4 ASP (DivX) / H.264 HP@L4.1 / VC-1 AP@L3.0 / RV8/9/10 / JPEG codec (Full HD decoder)
      Maturity
      Very good
      Availability
      Oct, 2007
      TSMC Rating :
      Verification: 0.09G (CLN90G)
       
      FPGA Technology:
      Xilinx: Virtex-4 LX
      Bus Compliance :
      AMBA AXI
      Datasheet:
      Related Links:


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    Jul 17, 2007

    Some White Paper for Low-Power

    Low-Power Resources

    Whitepaper — "Power Consumption in 65 nm FPGAs"  With the introduction of the Xilinx™-5 family, Xilinx is...    Read more
    Whitepaper — "Power Management In Complex SoC Design"  The rise in SoC size and speed, as well as the increase in...    Read more
    Whitepaper — "Power Integrity for SoCs: Power Planning and Signoff Flows"  Power integrity has become a crucial part of...    Read more
    Whitepaper — "A Practical Methodology for Calculating Acceptable IR Drop Targets in Advanced VDSM Design"   
    Smaller process geometries have led to a dramatic increase in...   
    Read more

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    Basic Low Power techniques to reduce Power[转]

    By  gmaben
     
    In the process of finding all the advanced techniques to reduce power, we tend to ignore the basic techniques available with the majority of EDA tools. Some of these techniques that are available today and can reduce power to a great extent are :-

    (1) Clock gating
    (2) Sizing
    (3) Factoring
    (4) Pin swapping
    (5) Inversion Push
    (6) Low Power Placement
    (7) Register Clustering
    (8) Low Power CTS to reduce power in the clock tree
    (9) Multi-Vt Optimization to minimize usage of Low Vt cells
    (10) Operand Isolation
    (11) Data Gating
    (12) Bubble Algorithm

    These techniques can be enabled by turning on some switches/variables in the Implementation tools. Most of these techniques require representative vector-set. Identifying good representative vectors is a real challenge.

    If the vectors are very difficult to access, the best bet would be to enable these techniques once your design meets the required timing/area goals.

    We can definitely get an estimate on the average activity factor of various blocks of the design and use these factors to enable low power optimization. This approach can help us in saving power to quite an extent.

    For example, I have seen in one of the recent activities, we were able to get around 15-20% power reduction just by enabling Low Power Placement.

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    Jul 12, 2007

    ECO小错

    问题:
    在定义wire的时候,信号名中带"\",如wire  \CNT[0] ;
    不知道是公司的Naming Rule规定的还是Verilog语法规定,在此类信号名的前后必须有一个空格。
    但我通过手工输入Command的方式产生的Netlist是不符合这规定的,因此很可能是公司Naming Rule定的。
    结论:
    在做ECO时手动修改的那部分Netlist一定得符合设计的Naming Rule,此类检查可以通过Debussy的语法检查发现。

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    Jun 26, 2007

    google技巧

    在使用DC时,对于初学者来说,很难弄清楚那些具体的综合过程,不过我们可以通过command.log来了解它。
    因此,就需要找一个比较好的脚本run过之后的command log来学习。
    Google is very powerful!
    对于文本文件,我们可以通过约束其扩展名,找到最精确的结果。
    如我要找一个command.log的文件,我就可以在搜索栏输入synopsys command  filetype:log
    对于其他文本文件,也可以采取类似的方式来搜索。
    同时,这也是一种不错的逆向学习方法,尤其对于这些EDA工具的学习。

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    Jun 13, 2007

    Taiwan's IC Industry: Review of Q1 and Outlook for 2007

    <Just as a template of Industry Reports>

    ITRI IEK-ITIS Project

    1. 2007 Q1 Industry Overview

    According to statistics released by the Industrial Economics and Knowledge Center (IEK) of the Industrial Technology Research Institute (ITRI), the production value of Taiwan's IC industry (including design, manufacturing, packaging and testing) was NT$339.5 billion in the first quarter of 2007. This represented a drop of 11.4% over the previous quarter (Q4 2006), but an increase of 10.6% relative to the first quarter of 2006 (the same period of the previous year). The design sector accounted for NT$84 billion (down 9.3% from Q4 2006, up 15.4% from Q1 2006), manufacturing for NT$182.5 billion (down 14.6% from Q4 2006, up 11.6% from Q1 2006), packaging for NT$50 billion (down 6.5% from Q4 2006, up 2.0% from Q1 2006), and testing for NT$23 billion (down 2.1% from Q4 2006, up 6.0% from Q1 2006). The following is a survey of the performance of Taiwan's IC design, manufacturing, packaging, and testing industries during the first quarter of 2007.

    A. IC Design

    In LCD-related IC design, revenue growth slowed due to the influence of flat screen product shipments during the first quarter; shipments of optical storage chipsets and DVD player chips remained steady. Shipments of low-grade mobile phones from China and India increased steadily, boosting mobile phone IC manufacturers' revenue. In the area of information product chipsets, Intel's and AMD's increasing focus on the embedded market, as well as NVIDIA's and ATI's reliance on their dominating graphics technology to lock up market share, has constricted the market for Taiwan's PC chipsets. In summary, the IC design sector had a production value of NT$84 billion during the first quarter of 2007; this figure was down 9.3% from the fourth quarter of 2006, but up 15.4% from the first quarter of 2006.

    B. IC Manufacturing

    Among Taiwan's two leading IC foundries, TSMC had revenue of NT$63.3 billion during the first quarter of 2007--a drop of 14% relative to the previous quarter--while UMC had revenue of NT$23 billion--which was similarly down by 12% over the previous quarter. These drops can mainly be attributed to customers' inventory adjustments. Spot prices of mainstream 512Mb DDR2 DRAM quickly fell from US$5 to below US$3 during the first quarter, and are now very close to manufacturers' production cost, which has also affected revenue performance. IC manufacturers had a production value of NT$182.5 billion during the first quarter of 2007; this represented a drop of 14.6% from the fourth quarter of 2006, but growth of 11.6 from the first quarter of that year.

    C. IC Packaging and Testing

    Seasonal factors and unfavorable market conditions caused the packaging and testing industry fall into a slump during the first quarter. Continued demand for packaging and testing of LCD driver ICs, memory cards, computer chipsets, chips for 3G mobile phones, and other communications and graphics chips will drive grow in the future, however. In summary, the IC packaging industry had production value of NT$50 billion during the first quarter of 2007, down 6.5% from the final quarter of 2006, but up 2.0% from the first quarter of that year. The testing industry had production value of NT$23 billion during the first quarter, which was down by 2.1% from the fourth quarter, but up 6.0% from the first quarter of 2006.

    2. Outlook for the Second Quarter and all of 2007

    In the design sector, demand will be driven by systems companies' continued introduction of popular new products like the Nintendo Wii, the Sony PS3 and the Apple iPhone. Taiwan's IC design industry is also expected to benefit from the ongoing effects of Microsoft's Vista, demand sparked by falling digital TV prices, and other business opportunities created by popular products. The IC industry is projected to have a production value of NT$87 billion during the second quarter, and achieve 3.6% growth relative to the first quarter. Production value for all of 2007 is projected to be NT$361.5 billion, which represents growth of 11.8% over 2006.

    In the manufacturing sector, continued inventory adjustments by foundry customers will lead to a steadily increasing proportion of 90nm and 65nm advanced process product shipments. It is expected that Taiwan's IC foundries will have a second-quarter production value of NT$102.9 billion, a rise of 12.6% from the first quarter. The price of DRAM has fallen steadily, and is seen as bottoming out during Q2. This will drag down manufacturers' revenues and profits. The IC manufacturing industry as a whole is projected to have a production value of NT$172.9 billion during the second quarter, a 5.3% drop relative to Q1. The industry's production value for all of 2007 is projected to be NT$833.4 billion, growing 8.7% from 2006.

    In the packaging and testing sector, demand for packaging and testing of chips used in PCs, mobile phones and digital consumer electronics products and peripherals may grow. Microsoft's Vista is expected to sustain growth in PC-related markets. The 2008 Beijing Olympics should also provide opportunities for the consumer electronics industry. Demand for mid-range and low end products in India and other emerging markets will continue. The production value of the packaging and testing industry is expected to reach NT$76.5 billion in the second quarter of 2007, an increase of 4.8% over the first quarter. Production value for all of 2007 is projected to be NT$341.3 billion, an increase of 12.6% relative to 2006.

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