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» show btchina

Face.Venice

After upgrading the network to fiber one, I need to fully utilize its bandwidth to make sure that each penny I spent is worthwhile. How to do so? Try bt. One of the best torrent site for Chinese should be btchina. No need to login; you can search the the results form multiple forums. However, it does not support firefox browser, which is my defaul browser on ubuntu. Based on the fact of firefox's tremendous popularity, it's not hard to find a workaround for it. Here it is: Show btChina userscript for greasemonkey extension.

It not only shows the results correctly for you, but also removes the annoying ad window in the middle of the screen.

http://userscripts.org/scripts/show/33286

by Daniel Kao at 4:00 PM under computer

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» Google App engine

Biei.Japan

I forgot how I bumped into this site Google App engine. I saw there's a small youtube video at the right-hand side. Out of curiosity, I clicked on the video and gave it a gimplse. Wow, it's written in Python. That made me more interested in how it works. Within hours, I wrote my first google app based on its simple sample provided in the Google App Engine SDK. Hey, but it's already good enough to compete with my onlinedic!! The speed is amazing comparing to my desktop client. Instead of completing my first workable (and useful) android app, I ported my onlinedic to google apps. Well, I just changed the I/O part of my original python scripts. As for the html post-processing part, I did not change them at all.

Now, I have French-English dictionary, Yahoo Chinese-English dictionary, and French Conjugator ready on the internet! I can always have these basic function set as long as I have internet access.

Here are some notes about what obstacles I encountered while writing this small app.

1. use python 2.5 instead of python 2.6
If you are using python version other than 2.5, it'd better that you install python2.5 too.
It will prevent you from bumping into a out-of-nowhere debugging error.
(I spent some time on finding this out on my ubuntu 9.0)

2. There's new_project_temple folder in the SDK root directory. That's where you can start with.

3. Do not use urllib from python library. Use urlfetch from google.appengine.api instead.

4. You can only upload/update your files to google app server, but you CANNOT download these files from the server!!
So, remeber to back up your files and use version control systems by yourself.

LINK:
http://onlinedict.appspot.com

REF:
http://code.google.com/intl/zh-TW/appengine/

by Daniel Kao at 4:59 PM under computer , linux , onlinedic

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» Unofficial Plurk API in Python : A Plurk client in wxpython - Plurkao

Des feuilles.Annecy

Originally, I wanna study how to write a small plug-in for Windows Live Messenger, so that every time a plurk alert comes, I can easily input the plurk id and username to reply the message. However, it turns out it's a hard work to do and there's no high-level wrappers for this task (please refer to CodeProject: Windows Live Messenger Plug-in Development Bible. Free source code and programming help). Moreover, I don't even have Visual Studio installed on my home computers. How can I compile my codes without a compiler.

After searching for a while, I gave up the idea of tweaking with Windows Live Messenger. Instead, I turned to search for plurk clients for desktop. Still, in vain. What I can only find is some air clients that use plurk mobile link internally, which I can already find a firefox extension for it. That interface is not intuitive enough for me. I need something more user friendly and not so error-prone as msn plurk alerts.

Well, the unofficial Plurk API in Python is what I found so far. On its website, the demo only shows how to display user's karma value and how to list your plurks. Hm.... it's not so attractive isn't it? But!!! indeed, the module does more than these two simple not so useful demonstrations!! You can send plurks, respond to existing plurks, get plurk permemant links, and etc. That's powerful enough to let me write my own plurk client. Yeah. You bet. I am gonna write one for myself if I have enough time.

Currently, there's only one API to get plurks which is called getPlurks( ). This API will get plurks no matter they are already read or not. I did a little modification now so that it can let you choose if you only want to list unread messages only.

Update (20090617)
I wrote a small app with this python library. Currently it can merely work. The speed is slow, but it works somehow.

And~~ the screenshots!

1. Login UI: well, that's almost you need to login your account

2. Main Window: you can click on RealAll or UnRead to see the plurks. Send button allows you to post a new plurk. There's no auto update mechanism so far; you have to manually click on them when you want to see updates. And...the data fetch is done in the same thread so the UI will be a bit lagged when the button is pressed.

3. Response Window:You can click on Inside to open up a new window which shows you the responses of the plurk. Refresh button will refresh the plurk for you (cause there's no auto update now); and the Send button will post a response to this plurk.

The UI is done by wxpython, so you have to install wxpython on your system if you want to test this program. And thanks for python's portability, I think it can run well under Linux too.

DOWNLOAD:
http://daniel.kao.googlepages.com/plurkao.zip

REF:
David - The Unofficial Plurk API in Python
Boa Constructor Download
http://plurkapi.com/http/methods

by Daniel Kao at 9:40 PM under computer , python

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» Python再起，誰與爭鋒：無名小站相簿備份軟體

Autumn.Annecy

這篇雖然是電腦文，不過因為國外連進來的，可能對這篇也不會感興趣，所以破例用中文寫囉。無名小站前陣子因為取消一些服務，搞得民怨四起(好像不是一直都這樣？)，鬧得很多人都要出走。要搬家的話，問題就來了：經年累月留下來的文章和照片，要怎樣搬到其他部落格去呢？關於文章、留言的部分，各家部落格其實都有提出類似的服務，可以讓使用者無痛搬家；但是對於相簿這塊，目前網路上找得到的軟體大都是專門設計來下載正妹照片用的，對於相簿中的標題和詳細描述，都沒有另外處理。也就是說，你搬得了照片，搬不了照片的字。

所以，昨晚我研究了一下網路上關於無名小站相簿原始檔格式的說明和網頁間的關連，寫了一小支程式可以把單一個相簿的相片抓下來，並且把照片和文字同時放進一個html檔。這麼一來，至少自己可以有一份相片和說明在一起的備份，就算不行匯到別的部落格去，也可以在自己的電腦上看爽的。等哪天有哪個部落格支援匯入照片和文字說明時，要再匯入也不會是件難事。

接下來是在寫這支python script時，需要注意的一些問題，和特別查到的資詢：
1. URL request時的Referer：無名小站從以前就一直被人垢病相簿不行外連，因為在抓圖時，它會檢查這個request是從哪發來的。為了要順利抓到照片，在程式裡必須塞一個假的，可以通過它檢查的網址給它。如此一來，就不行用單純的urllib完成，而得改用urllib2才行。


def GetURLContent(u):
   req=urllib2.Request(url=u)
   #req.add_header('User-Agent','Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040113')
   req.add_header('User-Agent','Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-TW; rv:1.9.0.11) Gecko/2009060215')
   req.add_header('Referer','http://www.wretch.cc')
   return urllib2.urlopen(req)

如上，先在request中加上Referer的header就可以了。

2. 在網頁的原始碼中，主要有三個tag是我們要抓的：DisplayTitle, DisplayImage, DisplayDesc；然後還有一個id="next"要抓。DisplayTitle是使用者設定的照片標題；DisplayImage該行有照片的真正路徑；DisplayDesc就是使用者可以寫得落落長的照片描述；id="next"則是用來檢查還有沒有下一張圖片，有的話，程式得要一路再抓下去，直到沒有下一張。

3. 抓的時候，記得要設一下sleep，不然抓太頻繁好像會被擋掉。所以每抓一張就加個sleep(10)或sleep(20)讓它休息一下。

4. 原本有打算把描述和標題塞到jpeg的exif裡頭的，可是編碼問題一直搞不定，所以算了。因為加了，一般的image viewer也看不到。

5. 用urllib2抓下image後，可以用read()讀出image的內容；存檔時記得開檔要用"wb"的flag，這樣子存出來的照片才能看。

6. 沒了。就這麼簡單。真想不通我怎麼搞了那麼久才寫好。

下載 DOWNLOAD:
http://daniel.kao.googlepages.com/WretchGrabPhoto.py

使用方式：
0. 先在電腦上裝好Python。
1. 把WretchGrabPhoto.py下載下來，放在隨便一個目錄
2. 用cmd開啟一個Dos視窗，進到該目錄，然後執行下面這行 (python執行檔的位置要看你灌的是哪一版而定)
c:\Python24\python.exe WretchGrabPhoto.py "the_url_to_the_first_photo_in_the_album" html_to_be_saved.html
3. 等它執行完，用IE或Firefox開啟你自己設定的html檔就行了

參考：
Read & Write JPEG COM and EXIF metadata [jpeg] [python] [image] [metadata] [exif]
fetidcascade.com - Python Exif Utilities
Team Programming Dragon．編程龍 » Blog Archive » 用 wget 抓無名單一相簿
下載無名Blog文章裡的圖片 | 無為閣

破解無名小站下載相簿照片作者: 井民全前言

by Daniel Kao at 11:55 AM under computer , python

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» New Skype UI

下午出門騎好久沒有騎的腳踏車，
不然肚子愈來愈大了。

才騎沒多久，就開始下雨了。
在下狂風暴雨的前一刻，我躲進了某家7-11還是全家的騎樓，
在它外頭的桌椅旁看著大雨直直下，大風猛吹。
一旁一樣是在躲雨的路人，都在討論說，這跟颱風來了沒有什麼兩樣。

回程時經過景美舊橋。
目前舊橋好像要拆了 (廢話，都剩下不到一半長了)。
摩托車可以走一旁的便道。
汽車的話就得要繞道而行了。

回家後，很廢，什麼事都沒做。
週六就這麼結束了。

晚上吃了碗辛拉麵。

****

New Skype UI is not as intuitive as I thought. And I hate its new copy message feature. Why the hell you keep adding user name and posted time in the copied message for me. Fortunately, I found that this feature (big flaw, from my point of view) can be turned off in the options.

Also, now it has a new window style that aligns conversation window to the user list. By this way, user only has to deal with one window at a time. You can switch to other conversations by selecting from the current ongoing conversation list.

The wierd thing is: I can't find documents or any help files that describe all these changes... Are they expecting every user knows how to use these strange UI once they get the updates?

by Daniel Kao at 8:45 PM under computer , food

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» Android Study: System requirement and Installation

Hong Kong

1. eclipse
2. JDK6
3. ant
4. android SDK: need to set up PATH in windows
5. ADT in eclipse: need to add site in eclipse to do the update.

by Daniel Kao at 8:46 PM under android , computer

» Android Study

Hong Kong

I wanna try out how to write Android softwares on my borrowed Magic device. In order to take notes of my studies, I will write down something here for my later refernce.

1. System requirement and Installation

by Daniel Kao at 8:46 PM under android , computer

» Connect HTC Magic to PC

ChangChou.Hong Kong

1. Go to following URL and download "HTCDriver_Update", "HTC Sync".
2. Install them on the desktop. Done!

If you've already installed Android SDK, you can use ADB in the tool folder to interact with Magic now.

by Daniel Kao at 8:46 PM under android , computer

» vimperator 2.0 tips

油條.Taipei

I've been using Firefox + vimperator 2.0 for quite some time. It makes my browsing experiences as smoothly as the silk. Today, I found some tips about how to make vimperator even better! These tips exist long before I found them. It's a pity that I did not do much survey on this before.

First of all, some key mappings to make navigation more easily:
map <c-c> Y map <c-g> YP map j 8<c-e> map k 8<c-y> map H gT map L gt

With these settings, you can use copy keyboard shortcut as before; the movement of pressing j and k is more obvious now (8 lines each time); and change among the tabs by H and L. It's easier than gt/gT or C-n, C-p.

Another good tip that I can't find til today: to disable system input method while switching to command line mode.

style -name commandline-ime chrome://* #liberator-commandline-command input {ime-mode: inactive;}

Moreover, starting from vimperator 2.0, it supports colorscheme just as vim does. You can download several color schemes from following link:

http://github.com/VoQn/vimperator-colorscheme/tree

To jump quickly within current opened tabs, you can turn on the numbering label on tabs by following setting:

set guioptions=n/N

N means displaying the number on the tab icon; n means displaying the number after the icon.

by Daniel Kao at 5:16 PM under computer

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» Install Ubuntu 9.04 in VirtualBox on Asus epc 1000HE

Airport.Hong Kong

I saw the fly's eyes in the airport.

****

The default operating system on my epc 1000HE is Windows. It works quite well so far, and I am already addicted to its multi-touch panel. To save my time on finding all the equivalent functions on Ubuntu, I decide to install ubuntu in VirtualBox under Windows. In this way, I can get the benefits from the Windows softwares and drivers; in addition, I can use the familiar interfaces in Linux too.

The installation is very smooth. It takes about one hour. Afterward, it took about 20 minutes to update new packages. Everything works fine except the resolution is 800x600 by default. In order to solve this problem, I installed VBox toolbox and reboot the system. Voila. You can adjust the resolution by changing the VBox windows size now.

by Daniel Kao at 5:57 PM under computer , linux

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» Asus EEEPC 1000HE

la feuille rouge.Annecy.France

我果然是衝動型買者。
雖然從eeepc最早期7吋版本上市，我就一直關注著這一塊市場，
不過我關心的可不是它會不會大賣，而是什麼時候要入手一台來玩玩。
沒錯，只是要玩玩而已。
因為上班已經有配電腦了，下班又有一台老當益壯的筆電在幫我養動物。
平常要看看影片，靠它完全不是問題。
所以，買來唯一的好處就是…玩玩而已，滿足自己的好奇心。

昨天又在pchome上不斷翻來覆去，最終還是下手了。
目前10吋系列的，如果不要超持久的電力，其實1萬上下就可以買得到。
之前我用過Asus的s200，所以知道9吋螢幕用起來的感覺。
這次還是選大一點10吋的。雖然攜帶上會麻煩一點，
但是舒適度會高很多。

最終，選定了1000HE，號稱擁有9.5小時電力的持久機。
很多人喜歡它的巧克力鍵盤，不過對我來說那並不是很重要的因素。
既然在s200上，打字就可以跟飛的一樣了，只要鍵盤比s200大，我都能快速適應吧。
之所以著重在電力上是因為…這樣子出門就可以不用帶充電器，也少掉到處找插座的麻煩。

不過，才到手一天，還沒機會讓它出去走走。

目前唯一比較另我討厭的缺點是：觸控板的左右鍵很難按！
要壓很用力才有反應。
其他的，so far so good...繼續熟悉中。

改天再把它改灌成linux吧。

by Daniel Kao at 7:36 PM under computer

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» Simple Ripper -- Streamripper on Windows

Ipomoea nil.Taipei

I am quite enjoying streamtunner in Ubuntu. In combination with streamripper, it can help me to record online music radios and separate each songs into mp3 files, so that I can easily put them onto my windows mobile device and listen to the latest music at work without using the office bandwidth. Streamtuner and streamripper are free softwares in linux (as most of other softwares do). However, in Windows, I can't find an equivalent software which is free too. I know there are some commercial softwares that can do the same thing, but why should I pay for a feature that I can freely use in another system?

So I spent some time searching on the internet again. This time, I found a small software that provides almost the same feature for me -- Simple Reader. It's UI interface is quite simple (as the software name suggests), but that's enough for me. The underlying engine is streamripper too. Yeah, streamripper has windows version. It's a great news to me, because if I can't find a good frontend for it, I can easily write one for myself.

REF:
Simple Ripper2
StreamRipper

by Daniel Kao at 7:56 PM under computer

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» Source Navigator vs Source Insight

Turugachyo.Japan

Originalement, je voudrais dessiner tout le chateau, et laisser encore assez d'espace en haut. Comme ca, je pourrais essayer de creer quelques jolies nuages sur le ciel. Cependant, j'ai commence par dessiner les gens devant le chateau. Quand j'arrive a finir plusiers etages du chateau... voila, le chateau deja atteignait le plus haut du papier. Bah, je dois bien mesurer le distance avant que je peigne a la prochaine fois. C'est un chateau pres d'ou j'avais le voyage de travail.

****

Today, one of my colleagues asked me if I know any other tools that we can use to browse source codes efficiently. Well, it's a good question that I did not pay much attention with. While developing softwares with Visual Studio, it's common to only use its built-in intelligence engine. The intelligence engine can already fulfill most of the requirement of general programmers. If it's still notpowerful enough as a code browser, we usually use Source Insight as a second choice. Source Insight did a great job on cross referencing codes.

However, there's one drawback of Source Insight: it does not support unicode files so far. When it comes to unicode source files, you have only two options: first, convert all your source files into non unicode files, which is not a good way; second, use another tools to do the job for you.

Long time ago, I tried Source Navigator. So, I gave it another try with my current ongoing projects today. What I appreciate is, it can build the class heirarchy chart for me. The layout is clear enough to get a whole picture of class relationships. As for source code cross referencing, I found it a bit lousy and slow. Not sure if it's because my nb is not powerful enough.

REF:

http://sourcenav.sourceforge.net/index.html

by Daniel Kao at 8:03 PM under computer , drawing , linux

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» Lexipedia / 美術館之龐畢度中心收藏展

YanmingSan.Taiwan

Lexipedia，一個好玩的網站，可以把一個單字相關的字詞用mind map的方式列出來。
可能可以增加記憶的速度吧。

REF:
http://lexipedia.com/

****

上週就發現到有這個展覽，
不過沒有一時衝動，趕在週末跑去。
4/18才開展，選在那個週末去，擺明是跟自己過意不去。

龐畢度，曾經在它門口外經過兩次，卻沒有一次有進去。
由此可知，我是個大老粗，對於這些博物館一點兒研究也沒有。
不過，既然人家都大老遠地從法國跑來台灣展覽，
看在票價不貴的份上，我還是找了一天去逛了一圈。
其中，最讓我欣賞的，還是米羅的藍色二號(是二號吧？)。
大塊的色彩，再加上點和線；畫畫何必搞得太複雜呢？

另外，衝擊比較大的是另一個個展：方力鈞的生命之渺。
一堆小光頭和蓮花，在天空中奔跑；
一個大光頭在水中游來游去，等等。
對於一個真正的畫家來說，重要的不是技巧(因為畫家人人都得具備)，
而是想要透過做出來的作品表達什麼，怎麼表達。
看到牆壁上他的年史，他在我這年紀時就已經揚名國際了。

我還在原地蹉跎光陰啊…

by Daniel Kao at 6:07 PM under computer , drawing

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» 唱歌 / Lunch Reader / photos of GRD II

Daan Forest Park.Taipei.Taiwan

像這樣子嗎？
有粗有細，長短不一的線？
我沒慧根，哈。

****

人是需要放鬆的。
自己的嗓門特別大，平常還得注意說話不行太大聲。
不過唱歌的話，就隨便了。
反正有mic，誰唱都一樣大聲。

****

吃飯時，覺得用滑鼠移來移去看新聞很麻煩嗎？
那來試試這個會自動跳新聞的Lunch Reader吧。

REF:
http://playpcesor.blogspot.com/2009/04/lunch-reader.html

****

原來GRD II 可以拍出這麼棒的照片。
我的GRD II 看了一定會哭的。

http://blog.ricoh.co.jp/GR/archives/2009/04/post_357.html

by Daniel Kao at 7:17 PM under computer , drawing

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» TV on iPhone

最近逛書店時，會順便再逛逛文具區。
目前缺的用具是，擦筆和軟橡皮。
擦筆可以用來磨畫紙上已經畫好的筆跡，
軟橡皮則是可以揉成任意形狀，利用按的方式來改變畫面的亮度。
這兩個我到現在還是沒找到。
不過，週日的時候倒是找到了這個：三角形的橡皮擦。
長成這種形狀，有了它之後我就不用再煩惱要把我的pentel橡皮擦轉到哪個角度才是乾淨的。
特地又買了一條橡皮擦芯。
這樣子夠我用上好一陣子吧。
(因為其實我不太用橡皮擦的…)

在中正紀念堂畫的。一直搞不清楚左邊是什麼廳，右邊是什麼廳。
畫得很亂，尤其是地板的部分。
太偷懶了，把廣場的地板畫得四不像。

今天一時心血來潮，想說這幅已經爛了，
就來用色鉛筆，沾上水來作畫試試看。
沒想到還蠻好玩的。
顏色深淺的控制比畫水彩容易，
而且不會有顏料一次擠太多的問題。
反正要畫多少，就從色鉛筆上沾多少下來。
只是，還不知道要怎麼混色。
好在我的色鉛筆是24色的，還頂得住。

最後，好久沒畫素描了。
昨天照著朋友寄來的DM畫了一張。

*****

在法國，有很方便的數位電視可以看。光是免收費的，就有十幾台。
現在，在iPhone上，各家業者也開始推透過3G network看電視的服務。
Orange推出的是TV from Orange。
你必須要加入一個月42歐元的xxx數據方案才能使用這項服務。
就Engadget iMobile的說法是…目前提供的都還是些怪怪的頻道。

反觀，SFR推出的頻道就正常多了，是平常看得到的頻道。
如果台灣的iPhone也推出類似的服務，
我大概也不會想用吧。
除非，日文頻道和TV5 monde都有被包含進去，
不然，我還是情願靠家裡的動物幫我網羅好東西。

REF:
http://blogs.lexpress.fr/conso/2009/04/les-pieges-de-la-video-sur-iph.php?xtor=RSS-188
http://www.engadgetmobile.com/2009/04/13/oranges-streaming-tv-app-for-iphone-goes-live-in-france/

by Daniel Kao at 6:34 PM under computer , drawing

Netherlands Daniel
NetherlandsDaniel
Daniel in Nowhere is about »

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» Collins English Dictionary

In order to read English novels on my diamond, I installed Collins English Dictionary for mobipocket reader. In this way, I don't have to go back and forthe between mdict and mobipocket reader.

by Daniel Kao at 8:35 PM under computer

Netherlands Daniel
NetherlandsDaniel
Daniel in Nowhere is about »

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» Introduction to 3G network

It's a shame not knowing common knowledge of 3G networks while working in a mobile phone manufacturer. Well, Obviously, some people do not think so. Here's the brief outline of radio network change: from first generation to 2G, 2.5G, and 3G. Although 4G is coming on its way, knowing current technologies will help catching up the new ones.

Introduction to 3G network
- History
  - 1G
    - NMT (Nordic Mobile Telephone)
      - NMT-450
      - NMT-900
        International Roaming is possible
      - Scandinavia, Ecntral and Southern Europe
    - TACS (Total Access Communications System)
      - UK standard, based on AMPS
      - 900 MHz
    - AMPS (Advanced Mobile Phone Service)
      - US standard
      - 800 MHz
    - MCS
      - NTT: first cellular network in Japan
  - 2G
    - Feature
      - use digital radio transmission for traffic
      - basic GSM uses 900 MHz
      - 1800 MHz
    - GSM (Global System for Mobile communications)
      - Most successful and widely used 2G system
      - TDMA
    - D-AMPS (digital AMPS)
      - US-TDMA, IS-136, or just TDMA
    - CDMA IS-95 (Code-division Multiple Access)
      - Developed by Qualcomm
      - the only 2G CDMA standard so far
      - IS-95 also called cdmaOne (brand name)
    - PDC (Personal Digital Cellular)
      - Frequency bands
        800 MHz
        1500 MHz
      - Feature
        physical layer: similar to D-AMPS
        protocal stack: resembles GSM
      - Only operated in Japan
    - Digital Cordless systems
      - CT2
      - DECT (Digital Enhanced Cordless Telecommunications)
      - PHS (Personal Handyphone System)
  - 2.5G
    - new technologies
      - HSCSD High-speed Circuit-switched Data)
        allocate 4 time slots for transmisstion (9.6 Kbps or 14.4 x 4)
        summary
        Good: software updates to network, and phone; good for real time apps
        Bad: usage of scarce radio resources
      - GPRS (General Packet Radio Services)
        up to 115 Kbps
        packet switched
        suitable for non real-time apps
        bursty data is well handled
        do not guarantee an absolute maximum delay
      - EDGE (Enhanced Data Rates for Global Evolution)
        3 folds of original GSM speed
        8PSK (eight-phase shift keying)
        + GPRS --> EGPRS
        384 Kbps maximum
    - IS-136 + (GPRS || EDGE) --> 2.5G
    - Qualcomm
      - CDMA2000 1xRTT
        IS-95: 14.4 Kbps, 1xRTT: 64 Kbps
        IS-95 + IS-95B or upgrade CDMA2000 1xRTT -->2.5G
      - HDR (High Data Rate)
        2.4 Mbps
        standardized in IS-856
        1xEV-DO (1x Evolved Data Optimized)
        Add a TDMA component beneath code component
    - PDC-P (NTT DoCoMo)
      - i-mode
- 3G standard proposals
  - UMTS (Universal Mobile Telecommunications System)
    - Done by ETSI SMG (Special Mobile Group)
    - UMTS Forum was created in 1996
  - new technologies
    - WCDMA
      - the bandwidth is 5 MHz or more (144kbps, 384kbps or even 2Mbps
      - network
        Synchronous
        CDMA2000
        compatible with IS-95
        manufacturer: Qualcomm, Lucent, Motorola
        use ANSI-41 core network
        3GPP2 (less support than 3GPP)
        good/not good
        good: effecient radio interface
        bad: expensive H/W
        Asynchronous
        ETSI/ARIB WCDMA
        most popular 3G system
        manufacturer: Ericsson, Nokia, NTT DocoMo
        rename to UTRAN (FDD)
        based on GSM MAP network
        3GPP
      - feature
        fast power control
        vary bit rate, service params on frame by frame basis
    - Advanced TDMA
      - UWC-136 only
    - Hybrid CDMA/TDMA
      - Not supported
      - in fact, it likes UTRAN TDD
    - OFDM
      - spectrum: effecient
      - user: DAB, DVB, 802.11a, 802.11g, ADSL
      - TDMA/CDMA possible
      - good
        bandwidth effecient
        resistance to
        narrow band interference
        multipath interefrence
  - IMT-2000
    - umbrella spec of all 3G systems (origin from ITU)
    - IMT Direct Spread (IMT-DS)
      - UTRA FDD
      - 3GPP
    - IMT Multicarrier (IMT-MC)
      - CDMA2000
      - 3GPP2
    - IMT Time Code (IMT-TC)
      - UTRA-TDD/TD-SCDMA narrowband TDD
      - 3GPP
    - IMT Single Carrier (IMT-SC)
      - UWC-136
    - IMT Frequency Time (IMT-FT)
      - DECT
- 3GPP
  - an org that develops spec for 3g system based on UTRA radio interface
  - partners
    - ETSI
    - ARIB
    - TTA
    - TTC
    - CWTS(china wireless telecommunications Standard
  - ULTRA
    - FDD
      - vocabs
        chip: a bit in a code word
        spreading factor: chip rate / data bit rate
        spreading code: a sequence of chips used to modulate the data bits
      - up/down use separate freq bands
      - chip rate: 3.84 Mcps
    - TDD
      - NOrmal: 3.84 Mcps
      - TD-SCDMA: 1.28 Mcps
    - channels
      - physical (air interface)
      - transport
        between layer 1 and 2
        define how data is sent over the air
      - logical
        within layer 2
        define the type of data to be sent
- 3GPP2
  - should be backward compatible with IS-95

and here's the Introduction to 3G network in tree view for better reading.

by Daniel Kao at 7:59 AM under computer , mobile

Netherlands Daniel
NetherlandsDaniel
Daniel in Nowhere is about »

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» How to add Google Reader Share RSS feed into Outlook 2007

Seattle.US

By clicking on the link of "Liste de partage", it will list posts that you want to share with others, and with a header listing some common used actions:

1. send the RSS feed address to others by email
2. embed this feed to your blog or website
3. A direct link to this RSS feed

By choosing the 3rd item, you will see the posts in a normal way. On the right side of the page, there's a general RSS feed icon at your service. That's where you can get a normal RSS feed address to be added to outlook. So, please copy the link first, and then launch Outlook 2007. It's a memory eating big monster. The performance is not either. However, the new menu design is much more useful than outlook 2003. Moreover, it has built-in RSS reader. It's convenient to share with others the articles in the RSS feeds.

Well, once you get the rigt RSS feed URL from Google Reader, just add it. It's done. Have fun.

by Daniel Kao at 8:26 PM under computer

Netherlands Daniel
NetherlandsDaniel
Daniel in Nowhere is about »

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» Some Free Softwares on Android platform

家裡不久前終於裝了無線網路。
中華電信的機子就放在書桌下，所以桌上的筆記型電腦其實用不到無線網路，
只要用條一公尺長的網路線就行了。
裝無線網路的目的是為了讓自己n台device可以三不五時上個網。

最近拿到一台Android平台的device，
因為畫面比diamond大，所以拿來上網會更方便些。
剛拿到時，裡頭內建的軟體實在是不多。
為了要有效利用，便上網搜尋了幾個常用的軟體：
台灣天氣：用來查天氣的。雖然沒有Manila的UI那麼炫，不過，可以查到資料比較重要。
StreamFurious: 聽串流廣播。
Astro: 檔案總管。
WordMate: 字典，支援stardict字庫。
MixZing Lite:聽mp3。
PureRSS: subscribe RSS feeds。
Slashdot Reader: 下載最新slashdot新聞。
Sudoku: 遊戲。

by Daniel Kao at 6:57 PM under computer

Official Python Planet@Taiwan

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破解無名小站下載相簿照片作者: 井民全前言

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