王詡™Trend Following

昨天去电脑城帮朋友买了一台SONY VGN-NR23H，配置还可以。屏也不错，外观设计都是很理想的。但却有一个缺点尽显日本人的小气的，居然才出来的本本没有驱动的盘，也没有在网上驱动发布。用着Vista home basic 我恨啊，回家以后装好了Vista U版的才发现网上下的驱动都是升级包。大恨，今天又去看了一下下ThinkPad，可爱的X61啊。下次一定要买这个。

为什么要写这篇呢，其实网上有很多的类似的文章。但是由于是经过自己的反复思考折磨过后的经验，由此联想到先贤前辈们，做成一个突破性的革新是多么不容易的事情。好了说说具体的问题吧。

我不想评判A还是N好，反正以前都用过，而且A被收购了。如果A真的是很好又赚钱的话怎么能够被收购呢。百事怎么没有收购可口可乐呢。一点愚见与大家分享，还有N和A公司现在对解码的方向也不同，但是我觉得还是比较喜欢H.264 所以买了N。

六月买的，开始都是下720P的来看，因为显示器是22的所以觉得下720P的要好点，所以一直用CoreAVC软解码。还行我的CPU是扣肉6320的性能还可以。所以软件哈利波特的6G左右的720P差不多20-30左右的CPU占有率。但是绝的还是不爽，在网上搜搜很多开硬解的方法，我使用后放我的那些720P的都是很卡，一顿一顿的。查了几天（真的是几天哦，连续性的）对比设置，对的啊。怎么回事，开始的时候以为是没有装PureVideo HD软件PureVideo 其实不是软件但是她有一个辅助解码的解码器而已，而且针对的是MPEG-2多一些。关于PureVideo HD还是8系列支持的比较好，主要是基本实现了显卡全解，解放CPU。通过看哈利波特720P开硬解就可以看出来。CPU才几的占有率，装了PureVideo以后还是没有变化。后来又怀疑是不是驱动的原因，什么版本都试过了，还是不行郁闷至极。后来又想是不是OS的问题，结果换上了XP还是一样的，这就真的又搞不懂了，why。最后只能是在用google搜索英文的帖子里，看了一个大概。好像老外也遇到过这个问题。开始还担心是显卡出来什么问题。结果一致查到H.264这个编码协议才知道H.264类似的有很多种X.264/H.263/AVC1/等等。而且在用CL解码的时候我的哈利波特是被看作了AVC1，在KMPlayer没有设置的时候播放再按tab健可以看到到底是什么编码。结果我下的720P都是AVC1，那么好我下载纯H.264看看，1080P我来了。下了脍炙人口的ts封装的DEEP BLUE。可以开硬解了。高兴，很流畅码率在20Mbps，CPU 20% 满意。DEEP BLUE 赞美BBC。

由此我的开启硬解的工程就此完成了。

6月26日 告別了用了四年的電腦換了一臺新電腦

Core 2 Due E6320
GA-965P-DS3-3.3
Dell E228WFP
ST3320620AS 7200.10.320G 16M
VData DDR2 677 1G*2
Gainward 8600GT
Razer Copperhead

开始时候没有把bios里面的SATA/IDE改过来安裝驅動以后硬盤爆慢，改了一下參數就可以了。

 

　　RAID是英文Redundant Array of Inexpensive Disks的缩写，中文简称为廉价磁盘冗余阵列。RAID就是一种由多块硬盘构成的冗余阵列。虽然RAID包含多块硬盘，但是在操作系统下是作为一个独立的大型存储设备出现。利用RAID技术于存储系统的好处主要有以下三种：

1. 通过把多个磁盘组织在一起作为一个逻辑卷提供磁盘跨越功能
2. 通过把数据分成多个数据块（Block）并行写入/读出多个磁盘以提高访问磁盘的速度
3. 通过镜像或校验操作提供容错能力

　　最初开发RAID的主要目的是节省成本，当时几块小容量硬盘的价格总和要低于大容量的硬盘。目前来看RAID在节省成本方面的作用并不明显，但是RAID可以充分发挥出多块硬盘的优势，实现远远超出任何一块单独硬盘的速度和吞吐量。除了性能上的提高之外，RAID还可以提供良好的容错能力，在任何一块硬盘出现问题的情况下都可以继续工作，不会受到损坏硬盘的影响。

　　RAID技术分为几种不同的等级，分别可以提供不同的速度，安全性和性价比。根据实际情况选择适当的RAID级别可以满足用户对存储系统可用性、性能和容量的要求。常用的RAID级别有以下几种：NRAID，JBOD，RAID0，RAID1，RAID0+1，RAID3，RAID5等。目前经常使用的是RAID5和RAID（0+1）。

NRAID
　　NRAID即Non-RAID，所有磁盘的容量组合成一个逻辑盘，没有数据块分条（no block stripping）。NRAID不提供数据冗余。要求至少一个磁盘。

JBOD
　　JBOD代表Just a Bunch of Drives，磁盘控制器把每个物理磁盘看作独立的磁盘，因此每个磁盘都是独立的逻辑盘。JBOD也不提供数据冗余。要求至少一个磁盘。

RAID 0
　　RAID 0即Data Stripping（数据分条技术）。整个逻辑盘的数据是被分条（stripped）分布在多个物理磁盘上，可以并行读/写，提供最快的速度，但没有冗余能力。要求至少两个磁盘。我们通过RAID 0可以获得更大的单个逻辑盘的容量，且通过对多个磁盘的同时读取获得更高的存取速度。RAID 0首先考虑的是磁盘的速度和容量，忽略了安全，只要其中一个磁盘出了问题，那么整个阵列的数据都会不保了。

RAID 1
　　RAID 1，又称镜像方式，也就是数据的冗余。在整个镜像过程中，只有一半的磁盘容量是有效的（另一半磁盘容量用来存放同样的数据）。同RAID 0相比，RAID 1首先考虑的是安全性，容量减半、速度不变。

RAID 0+1
　　为了达到既高速又安全，出现了RAID 10（或者叫RAID 0+1），可以把RAID 10简单地理解成由多个磁盘组成的RAID 0阵列再进行镜像。

RAID 3和RAID 5
　　RAID 3和RAID 5都是校验方式。RAID 3的工作方式是用一块磁盘存放校验数据。由于任何数据的改变都要修改相应的数据校验信息，存放数据的磁盘有好几个且并行工作，而存放校验数据的磁盘只有一个，这就带来了校验数据存放时的瓶颈。RAID 5的工作方式是将各个磁盘生成的数据校验切成块，分别存放到组成阵列的各个磁盘中去，这样就缓解了校验数据存放时所产生的瓶颈问题，但是分割数据及控制存放都要付出速度上的代价。

　　按照硬盘接口的不同，RAID分为SCSI RAID，IDE RAID和SATA RAID。其中，SCSI RAID主要用于要求高性能和高可靠性的服务器/工作站，而台式机中主要采用IDE RAID和SATA RAID。

　　以前RAID功能主要依靠在主板上插接RAID控制卡实现，而现在越来越多的主板都添加了板载RAID芯片直接实现RAID功能，目前主流的RAID芯片有HighPoint的HTP372和Promise的PDC20265R，而英特尔更进一步，直接在主板芯片组中支持RAID，其ICH5R南桥芯片中就内置了SATA RAID功能，这也代表着未来板载RAID的发展方向---芯片组集成RAID。

Matrix RAID：
　　Matrix RAID即所谓的“矩阵RAID”，是ICH6R南桥所支持的一种廉价的磁盘冗余技术，是一种经济性高的新颖RAID解决方案。Matrix RAID技术的原理相当简单，只需要两块硬盘就能实现了RAID 0和RAID 1磁盘阵列，并且不需要添加额外的RAID控制器，这正是我们普通用户所期望的。Matrix RAID需要硬件层和软件层同时支持才能实现，硬件方面目前就是ICH6R南桥以及更高阶的ICH6RW南桥，而Intel Application Acclerator软件和Windows操作系统均对软件层提供了支持。


　　Matrix RAID的原理就是将每个硬盘容量各分成两部分(即：将一个硬盘虚拟成两个子硬盘，这时子硬盘总数为4个)，其中用两个虚拟子硬盘来创建RAID0模式以提高效能，而其它两个虚拟子硬盘则透过镜像备份组成RAID 1用来备份数据。在Matrix RAID模式中数据存储模式如下：两个磁盘驱动器的第一部分被用来创建RAID 0阵列，主要用来存储操作系统、应用程序和交换文件，这是因为磁盘开始的区域拥有较高的存取速度，Matrix RAID将RAID 0逻辑分割区置于硬盘前端(外圈)的主因，是可以让需要效能的模块得到最好的效能表现；而两个磁盘驱动器的第二部分用来创建RAID1模式，主要用来存储用户个人的文件和数据。


　　例如，使用两块120GB的硬盘，可以将两块硬盘的前60GB组成120GB的逻辑分割区，然后剩下两个60GB区块组成一个60GB 的数据备份分割区。像需要高效能、却不需要安全性的应用，就可以安装在RAID 0分割区，而需要安全性备分的数据，则可安装在RAID 1分割区。换言之，使用者得到的总硬盘空间是180GB，和传统的RAID 0+1相比，容量使用的效益非常的高，而且在容量配置上有着更高的弹性。如果发生硬盘损毁，RAID 0分割区数据自然无法复原，但是RAID 1分割区的数据却会得到保全。


　　可以说，利用Matrix RAID技术，我们只需要2个硬盘就可以在获取高效数据存取的同时又能确保数据安全性。这意味着普通用户也可以低成本享受到RAID 0+1应用模式。

 

NV RAID：
　　NV RAID是nVidia自行开发的RAID技术，随着nForce各系列芯片组的发展也不断推陈出新。相对于其它RAID技术而言，目前最新的nForce4系列芯片组的NV RAID具有自己的鲜明特点，主要是以下几点：


(1)交错式RAID(Cross-Controller RAID)：交错式RAID即俗称的混合式RAID，也就是将SATA接口的硬盘与IDE接口的硬盘联合起来组成一个RAID模式。交错式RAID在 nForce3 250系列芯片组中便已经出现，在nForce 4系列芯片组身上该功能得到延续和增强。
(2)热冗余备份功能：在nForce 4系列芯片组中，因支持Serial ATA 2.0的热插拔功能，用户可以在使用过程中更换损坏的硬盘，并在运行状态下重新建立一个新的镜像，确保重要数据的安全性。更为可喜的是，nForce 4的nVIDIA RAID控制器还允许用户为运行中的RAID系统增加一个冗余备份特性，而不必理会系统采用哪一种RAID模式，用户可以在驱动程序提供的“管理工具”中指派任何一个多余的硬盘用作RAID系统的热备份。该热冗余硬盘可以让多个RAID系统(如一个RAID 0和一个RAID1)共享，也可以为其中一个RAID系统所独自占有，功能类似于时下的高端RAID系统。
(3)简易的RAID模式迁移：nForce 4系列芯片组的NV RAID模块新增了一个名为“Morphing”的新功能，用户只需要选择转换之后的RAID模式，而后执行“Morphing”操作，RAID删除和模式重设的工作可以自动完成，无需人为干预，易用性明显提高。

 

Apple is not so cool, fresh and trendy, a group of people became convinced by that fact some time ago. Apple sued couple of folks for publishing information about new products branded by the sign of a bitten apple, which were not at stores at that time. Details and materials about this case are avaliable on www.eff.org website. Apple lost this case and was ordered to pay attorneys fees. Two days ago a person called Tzywen published on Youtube a short movie how to emulate iPhone’s interface on a Pocket PC device. Unfortunately, after Apple’s intervention, Youtube removed it. More details on www.tzywen.com website (this website is temporarily unable to work because the bandwidth limit was exceeded). This presentation is once again posted on Youtube of course. Watch it for yourself.

I can add from my point of view that such Apple’s actions start to annoy me slowly (as a lawyer even more). I put here a copy of the mentioned and presented above movie in a case they would try to removed it again . It is published in the FLV format. I suggest you to use VLC software to watch it. It works with almost each operating system and its free - just the magic FLOSS abbreviation.
I have a brief statement for Apple and its lawyers at the end of this post. If you want to sue me, you are warmly invited. Please do not hesitate to do so. If you need any personal and address data to fill your petition please contact me quickly.

Update on March 06, 2007.
Youmolo (Tzy) removed pictures from his website. I asked him to sent them to me and here they are: eteniphone1.jpg, eteniphone2.jpg and eteniphone3.jpg. No Apple! I am not going to remove them.

Update on March 07, 2007.
Youmolo wrote about my help on www.tzywen.com website. Here are some additional thoughts. First, let me cite a fragment of the letter from Apple’s lawyer to Youmolo.

Re: iPhone Interface on a Pocket PC

Dear Sir:

We represent Apple Inc. (“Apple”) in intellectual property enforcement matters and are writing to you regarding the recent Internet articles and postings about what you claim is a clone of the interface of Apple’s iPhone product.

In addition to seeking patent protection, Apple is also the owner of various U.S. and international intellectual property and other enforceable rights covering the iPhone, including its design, software, display, icons and interface.

Because we believe the software program that you say you authored and describe as an “iPhone interface clone” is an infringement of Apple’s rights in violation of U.S. and international laws, and because you may make the software commercially or shareware available, it is in both of our interests that you clearly understand that Apple takes matters of this kind very seriously, and is prepared to takes steps that are necessary to protect its rights.

While we appreciate your attention to the iPhone, in consideration of Apple’s rights, which you appear to anticipate exist in your Internet postings, we request that you promptly: (i) cease the development and distribution of this software, (ii) take steps to remove any postings of the software or videos featuring the software from any website or server under your control, and (iii) destroy any portion of the software that infringes Apple’s rights or otherwise violates applicable law.

We appreciate your prompt cooperation and compliance with this letter.

Sincerely,

David J. Miclean

Now, let me take a short position on Apple’s claims. I do not want to discuss a form of this letter. Some scary socio-techniques do not make an impression on me. I am a badass lawyer. I prepared a really short memo how would I answer to Apple’s lawyers.

1. What law should we apply? There are some questions. Youmolo created his software, pictures and movies in Malayasia and he is a citizen of this country. Apple Inc. is in the USA (Cupertino, California). Youmolo’s works are avaliable in the Internet. Apple’s IP rights are territorial. I do not want to get into many jurisdictions aspects of the US and international copyright law. Let me focus on Apple’s statements based on the US copyright law.

2. To what Apple’s IP rights its lawyer refers to?
A. They can claim copyright protection to icons and a wallpaper only.
I could argue if such icons should be copyrightable subject matter under the US law - aren’t icons useful articles? As I said I could argue about that. No time for that. I am not paid $500 per hour. ;)
B. Apple is seeking for patent protection.
So what? Briefly. What has it in common with the software written by Youmolo or pictures and a movie he made? Was this patent already issued? Wait, no! They are seeking for that. In what country does Apple seek for patent protection. Is software patentable under those countries national patent laws? Does Apple seek for patent protection for menu or a slider? Let them learn about the non-obviousness test step in the US patent law.
C. Does Apple have copyright to menu?
If this is what they mean by the interface then it can not be copyright protected in the USA. Ideas and procedures of the iPhone software/menu/interfaces are not copyrightable subject matter under US copyright law.
D. Does Apple have design patent’s right to iPhone?
Sure, they can claim that (if such design patent was granted) but Youmolo do not use the iPhone design at all.

3. Apple claims that Yomolo software ifringes their IP rights.
I asked above to what rights Apple’s lawyer refers to. Youmolo did not copy the iPhone’s software so there is no software copyright infringement. There is no “iPhone patent” so there is no patent infringement and he does not use iPhone design. Youmolo used some iPhone’s icons and wallpaper in early version of his software. It may be an infringement. There is a simple solution for that problem. Just change those icons and wallpaper in Youmolo software.

4. Apple’s requests.
A. “Cease the development and distribution of this software”.
I. Cease the development. Very funny, really. On which ground they claim that? Is he their employee? Is this work made for hire or contracted somehow? Youmolo created fully independent and new software for other platform.
II. Cease the distribution. On which ground? Youmolo did not copy Apple’s software. Youmolo did not infringe any portion of Apple’s iPhone software. He is the author of his own work. He can do whatever he wants to do with it.
B. “Take steps to remove any postings of the software or videos featuring the software from any website or server under your control”.
I. Remove posting of software. On which ground? Do they claim copyright to Youmolo’s software?
II. Remove videos/pictures featuring the software. Does Apple claim copyright ownership to those pictures or video?
C. “Destroy any portion of the software that infringes Apple’s rights or otherwise violates applicable law”.
I. The most funniest part of this e-mail. I laugh each time I read it. Let me answer to this dumb claim by a small analogy. Dear Apple you can use copyright to promote the progress of useful arts not to destroy it! I would also recommend Apple’s lawyers reading more about copyright misuse doctrine.

So what can Apple do? Well. They may sent another so-called “DMCA notice of takedown” to Youtube. Google and Youtube will comply with it probably. They are too lazy and too busy to think about the legitimacy of Apple’s claims. They may sent another letter to Youmolo. It is up to him if he give up. They should sent me a letter. I already published pictures and the movie and I am going to publish the mentioned software here. Dear Apple, you already have a contact link to me. But. If you would like to “threat” me, then please, consider that I am a citizen of Poland. We do have our own legal system. Please prepare each of your legal corespondence to me in my native language. The final word will always be said by the proper court.

听起来有点像黑客帝国的样子，但是事实上真的是这样。

硬盘坏了几天，也许是时候了 换一个吧。看看报价80G的和160G的才差100块，还都是叁年质保的。说句实话一年和三年都是一样的。以前的那个还不是坚持了三年。今天又双休早早的来到了《@世界》，找一个朋友看看拿一块结果迟迟不出现，又水我。一气之下跑到了道洋去买，给了钱才发现居然道洋可以刷卡，倒~~~。

今天还有一件事，家里三姑六婆给介绍一女子，结果一个星期前约好了时间结果又爽约，下午的时候发了条短消息去，还装作不知道一样，说改成明天，f
其实我也是不想去的，但是为了尊重长辈，出来喝杯cafe，吃个饭什么的，就算了事。但是居然这样不讲信用，我的好朋友说：“明天不要去了”。好我认同！！！

不知道是不是cafe的原因，写出来的东西可能不着调。就这样了。