Daiki

I reviewed little bit about sony ericsson Xperia ray, when I update from GB to ICS. Well, from the beginning, one of the problem on my phone is the function of phone call. This is not only for ICS but also for GB. Because, for me, the largest application is address book. Usually, I use default address book app. When I start up the address book app, it is ok. First problem is scrolling. Sometime, the app gets a crash, when i try to scroll down my address book. And second one is when i try calling. When I call someone, I open address book then I choose one of elements in list. when the time, the state changing from address book to calling has more than 3 seconds. I don't know why it is happened. But, it is one of big problem for me.... because it is mobile phone...... ~_~;;; I think next topic is related with above thing. The next topic is about memory (RAM.) I think(not sure, because i forget) the xperia ray has 512MB of ram.  The real usable size of ram is 340MB. It was enough

   Usually, our system becomes speed (performance) down, when we install many application. We can say same thing onto our android phone.    Some of my friends also said same thing. In this post, I did not any evaluate about anything. All of my writing in this post is only from my experience and feeling.   Many case, the performance down on android comes from RAM space. I used task manager for this problem 2years ago. And some people do it. Well, I found one thing. We can control the task execution because of the application. However, many of android task managers are executed as background process. Such kind of application will be one factor for speed down.  I removed such kind of background executed task manager.   This is my result to use android mobile phone. The problem for speed down is application cache and background executed process.  So, I use two application.   First application is app2sd. The main feature of app2sd is move application from phone strage to sd card. Ho

As the title, I think you should not update from old version of Ubuntu to latest version of ubuntu. Yes, if you customize so much and to re-customize is quite difficult then you can not avoid update.  However, if you do not customize so much then you should remove current installed ubuntu and cleaninstall the latest version. The reason is following. From 08.04, I had many troubles for ubuntu update especially X configuration. I use 4 different ubuntu desktop and 2 virtual computer on vmware. Only on vmware's ubuntu can be update safely. My friend is also using ubuntu. However, his computer also had many troubles. He using some server software on ubuntu. So, he did want to update from zero. And his computer got crash before x started. He used some days for repair that problem. For me, many of computers are only for desktop except one computer. So, usually, I update them and got crash then I remove them and reinstall from zero. Because, I don't want to use time for repair the

There are many pre-posts what I wrote bit but not completed in my dashboard ^^;;;

I tried to use Ubuntu 12.04 from last week. For the total view, I think 12.04 is the most stable version except default desktop. This meaning is that if you will clean-install from zero then the system is so stable. I tried to update from 11.10 to 12.04. The updating was completed. But it was not stable especially x-windows system. Usually, I work on ubuntu and intelli-j. So, x-windows system's problem is critical for me ^^;; Finally, I formated the system partition and reinstall 12.04 from zero. And, I changed window manager to GNOME, then the system became quite good. Before 11.10, my computer could not find sound board. ( my computer has one sound card, one onboard sound card, and one USB sound card) I think my computer could know the usual sound card when i installed 10.04(?). However, after some updating, the system could not find any sound card. So, I gave up to setting up and I bought new USB sound card. However, it was not worked on my computer, too.  However, when I

I use Xperia ray (ST18i). Xperia ray has multiple type of versions. I know JP version, US, North europa, Asia, and china. And, I know JP version is one of the worst version for new release because of economic and political reason. So, I bought from hong kong. However, china version also had different meaning of political reason. I thought it is good for SIM free version. However, the bad point is that the phone cannot access to google account even if it is android phone. So, i decided to flash the rom from 2.3 to 4.0. I used official rom for north europa version. Many sites explain how to change rom. So, I don't do this. This time, I got friend's help. Because, the rom flashing too is provided for Windows or Linux. I have linux machines but it has many risks for flashing rom with linux machine. I thought that I should wait for real release for my phone. The first release was last april for US version. And, I waited almost 1 month. However, it could not get new release. Th

  The first day when the google drive was released I try to use google drive. Actually, I thought I will not use google drive any more. Because, it has only 5GB strage for free and the provided client package for OSX was not work. And it was also difficult to manage the files from web browser.  The initial state, my home space had many files and directories what I created on google doc, google note, and etc. Actually, I didn't want to see them on this strage.....~_~;;;     Today, I try to install the google drive client for osx again. The client can be installed to my MacBookAir Lion. And, it works well. My personal opinion, the setting screen of sync policy has many spaces to improve. It is not so easy to understand. Finally, I removed all my data from my space. Because, I checked the select box what is only sync some folders to this computer. And, I sync them and I moved them into trash box ^^;;; Happily, I didn't need them.    Well, the client of google drive is almo

 I already wrote about following in some place.  And, I also wrote this in japanese first. Because, I wanted to know about this for japanese engineers.  Many of u know the earth quake in japan, it was occurred one years ago. And, many of online services was developed or tested for such kind of disaster attacked.  Before the earth quake, I had claim weak buttery on smart phone. In the place where is attacked by disaster, it needs more than one weeks for recovering the infrastructure. However, current mobile phone especially mobile phone can be used only half day to 2 days. It is not enough in such situation. It is enough to call at least one know person. It is one opinion. However, in many case, it is also impossible to call one phone call to known person due to the network traffic jam. On another hand, facebook tested a online service what we can tell our life through the facebook, when disaster will be happened. Well.... the last version of this service was needed to access to fa

Player/Stage, javaclient3 was released. Actually, I didn't know about it untile this year. You can get the javaclient from                    http://java-player.sourceforge.net/ You can get the some sample code from                    http://java-player.sourceforge.net/examples-3.php It has many new elements. I will write a sample code and compile way, later. I DL them from CVS. CVS version has no ant file. So, I need to import to IDE or to write ant file for compiling.

Today, my chrome app pool has new app. Actually, I think it is installed automatically.... I'm not sure but I have no memory to install the app. The app is provided by amazon. Name of the app is "Kindle cloud reader". I installed kindle app to my mac. However, by this installation, i could delete the kindle app from my mac. Actually, I will not be able to read any books on my mac, when I go out. However, when that time, I'll have my nexus one and tablet. Both of them have the kindle app. Now, I try to buy some book with free cost. (it's very nice that i can get some kind of knowledge by free. But, I'm weak for english, so it is hard to read them for me.) And try to read it. Usually, I didn't use kindle app on my mac. because, I needed to boot special app for reading app. But, now, I don't need to boot any special app only needing is to push app on chrome. I read some pages. I'm reading "what is Node". I cannot explain about this book, y

My main working machine is Mac OSX snow leopard. I'm using also android mobile phone, android tablet and linux desktops. The big problem for using claude strage is supports for platform, public policy and size of strage. Dropbox is one of the famous claud strage. The lient software for Dropbox has good functionality, even if it is free uses. However, Dropbox is weak for strage size. Yes, Dropbox has more than enough functionalities. And we can use dropbox for free. If you want to use larger strage size then you can pay. The size for free users can use 2GB. And you can pay for 50GB or 100GB. The amount of cost is not so big. But, it can make dammages for students life, even if it is small amount of costs.  On another hand, Box.net, N-Drive, SkyDrive and UbuntuDisk (I'm not sure the correct name?) are also good strage services what we can use for free, too.  My private opinion, Box.net is also good cloud service. Box.net can use 50GB for free. And Box.net has good web

I went to working trip at last weekend. In that trip, I could buy an USB server. USB server is like as converter from USB HDD to NAS. We just need to plug power cable, LAN cable and USB cable. And after small setting up, it will work as NAS (Network attached strage). Following URL is the USB server what I bought. (in japanese) 3,000 jpy http://www.planex.co.jp/product/usb/mzk-usbsv/ I try to use this usb server in my house. I had some point where I though little bit for setting up. client environment: MacOSX (Snow leopard) Ubuntu 11.10 The default network setting up is 192.168.1.245 Some of network uses different network address, so you need to change ip for your computer as fixed address. Then you can access this server from Firefox or chrome. The server ask the login user name and password for setting up. You dont need to connect direct between your computer and usb-server. You just need to plug to netwrok hub for both of them. First you need to change the IP addr

Yesterday, I backed from working trip. To my house from rail line and bus top, I need to walk for 20 - 30 minuts. In this season, it has strong snow storm. And the road for walker has too much snow as 20- 30 cm. It is too difficult to walk such a distance with laptop and some many things. So, I was picked up by my friend by his car. After taking dinner, we went to a cafe. And we worked 30-60 minutes with coffee. He said "Oh, here we can use WiFi in this cafe! Because I saw a seal what we can use WiFi here." So, we tried to use WiFi. (we cannot use any network in that. I don't know why....) When that time, I was surprised because of name of SSID. I forget exact name but it was following. "password"=queryForfreeSPOT(ASM) Actually, in the cafe, it has another SSID named freeSPOT. First I tried normal "freeSPOT". But it did not work. And he said that the seal said password is password. However, i have no idea that the strange SSID is correct or not. B

After Ubuntu 11.04, default window manager was changed from gnome to Unity. In my opinion, Unity is good for using on tablet pc. However, it is difficult to use on desktop or laptop pc. If you don't want to use Unity desktop as me, then you can use GNOME classic. On default, GNOME classic is not installed. You need to install from command line or package manager. The name of package is "gnome-session-fallback". (I haven't meet the bug, but some bugs are discussed in the Ubuntu forum.) Then, you can choose GNOME classic when you log on. I tried some window mangers, however no window manager is better to use than GNOME classic for me. GNOME classic has two mode named GNOME classic and GNOME classic no effect. With my desktop pc, I could not find any difference. (because i don't use any visual effect ^^;;;) Well, for customizing the gnome panel, we just needed to dag and drop to the panel for adding some icon to start some application. Or we could use with right cl

I'm using Nexus one. I think you already know about nexus one. Nexus one is one of the android mobile phone developed by Google and HTC. It is not possible to buy nexus one in japan. I already wrote about japanese 3G signal. Japan has 3 big different phone company. NTT DoCoMo, Softbank mobile (vodaphone), and AU KDDI. DoCoMo and Softbank mobile are using W-CDMA and AU is using CDMA-2000. Many people think that W-CDMA is similar with CDMA-2000. But, it is extension on the GSM. The W-CDMA is little bit different from GSM especially for MMS. The specification of MMS on W-CDMA had little bit different bit from GSM. Android phone cannot access to MMS server by default. So, we needed to compile the android kernel for receiving the MMS on Softbank mobile. Actually, I didn't re-compile the kernel on my phone. Because, it is mobile phone. To re-compiling the kernel for mobile phone has many risks for security and my economy. By such reason, I didn't use MMS on my phone. 2-3 weeks ag

Last a month, I used PocketWiFi with B-Mobile SIM + Google Nexus One with Softbank mobile SIM. I used this combination for a month because the softbank mobile had problem for 3G data communication due to the wrong parameter written by staff. The communication speed was too slow. So, I try to use B-Mobile for data communication. I wanted to use b-mobile but I didn't want to change the phone plan from softbank. Then, I try to use Pocket WiFi. The largest merit of using PocketWiFi is that we can use 3G network at most 6 devices at a same time. When we are starbacks, some coffee stand, or some other places we can use 3G network through the wifi. The speed was enough for web browser. However, for the data communicating through the android application, some of them didn't work. And, the buttery power also had problem. I need to charge the buttery every 1-2 days, even if i didn't use it. And, I had some situation that I wanted to use it however I forgot to bring it with me or to c

From today, I try to use pocket wifi. This post is first review for using pocket wifi. Why did i start to use pocket wifi? Usually, i use many devices that have wireless LAN. Ex, nexus one, android tablet, mac laptop, Linux netbook,etc,etc.... i only can use nexus one, when i go out from my room or university. Nexus one is good device for mobile phone. However, it is not enough screen size for working. So, i wanted to use my tablet in outdoor,too. On such timing, softbank mobile 3g network becomes to unstable state. By such situation, i decided to try the pocket wifi with b-mobile network. Because i don't want to change my phone number by this thing. Well, b-mobile is one of the mobile phone service provider using docomo's 3G networks. I bought sim card with a month contract. The good thing is that we can use at most 6devices at same time. Wherever we can use network. But, the buttery life is not so long. Maybe three hours. And, i'm not sure but i think it is slower than so

Android Application App Backup & Reinstall - Android マーケット Usually, android applications are installed to strage on the android device. However, the android device has limitation for strage. So, installed to strage is not happy for user. This application can be moved android application to SD card. My Nexus one has limitation for application install area. And, it is too small for installing many applications. It is very nice application. But, it is not possible to move all application to SD card. This application automatically detect that what application can be moved and make the list. The possibility is based on a variable that to where can we install it. So, if you have android shell then you can change the variable for some application. You will be able to find the way to change the variable by the google search. App Backup & Reinstall - Android マーケット

Clock synchronization The two-three weeks after earthquake, my nexus one lose more than 10 minutes. Many clocks on my devices what are synchronized through the network are correct time. And, archos 101 also ticked correct time. However, I thought it was due to the earthquake attacked to the tower for radio signal of time sync.  However, it was not only in Japan. http://www.google.com/support/forum/p/Google%20Mobile/thread?tid=0541d85a152acd13&hl=en Now, my nexus one is ticking almost correct time ^^ It might be by the Android 2.3.3. What happend at that time? @_@?

  In Japan, it's used w-cdma protocol for mobile phone. W-cdma may be used at only  Japan and Korea. Many peaple make image as cdma2000, when you read "cdma". Because, GSM is used for mobile phone as standard protocole in many country. And some countries are using also cdma2000. Between GSM and cdma2000 are not compatible. However, between w-cdma and GSM are compatible. Cdma2000 is also used in Japan. )   Well, i had small trouble about this cdma, when i told about Japanese mobile phone protocole with a professor who came from overseas.  He asked me about my carrier on my phone. My phone is softbank mobile. And softbank mobile is using w-cdma protocol. You already know that w-cdma is not widely used protocol. And if you say cdma then it points to cdma2000. He also thought so. And, it made small discussion about that cdma is compatible or not. Actually, i could not explain aboutit well.   I remind about it. And i want to check that how my nexus one know about signal. The