Search This Blog

Monday, November 30, 2009

iPhone boot ROM prevents jailbreaking!


iBoot-359.3.2 seems to hinder jailbreaking, and it was reported that the version started to ship in the beginning of October.


iBoot-359.3 seems to be safe now!

For more information: http://www.macrumors.com/2009/10/14/apple-modifies-boot-rom-on-revised-iphone-3gs-models-to-hinder-jailbreaking/

Saturday, November 28, 2009

LCP - Linear Complementarity Problem

Linear Complementarity Problem (LCP)는 computational mechanics에서 종종 나타나는 quadratic programming의 특수한 경우로 mathematical optimization theory에서 찾을 수 있다.

Jacobian matrix

Vector calculus에서 Jacobian matrix는 vector-valued function의 1차 부분 미분으로 이루어진 matrix이다.

SVD - Singular Value Decomposition

Singular Value Decomposition (SVD)는 linear algebra에서 real 혹은 complex matrix에서 중요한 factorization으로써 signal processing과 statistics에서 사용된다. SVD를 채용하고 있는 응용 분야는 pseudoinverse, least squares fitting of data, matrix approximation, matrix에서 rank, range, null space의 결정할 때 사용된다.

Stick-slip phenomenon

Stick-slip (or "slip-stick")은 두개의 물체가 서로 붙어 있는 상태에서 미끄러질 때 나타나는 급격한 동작을 말한다.

Stick-slip은 두개의 물체가 서로 붙어서 미끄러질때 해당되는 마찰력의 변화와 함께 표면의 변화에 의해서 나타난다. 전형적으로, static friction coefficient는 kinetic friction coefficient보다 크다. 만약 가해진 힘이 static friction보다 충분히 크다면, kinetic friction에 대한 friction의 감소는 움직이는 속도에서 급격한 변화를 만들 수 있다.

천자문 여행; 9 ㅡ12구

<원 문>
雲 騰 致 雨 ㅡ 운 등 치 우
구름운,오를등,이를치,비우.

露 結 爲 霜 ㅡ 노 결 위 상
이슬노,맺을결,할위,서리상.

金 生 麗 水 ㅡ금 생 여 수
쇠금,날생,고을려,물수.

玉 出 昆 岡 ㅡ옥 출 곤 강
구슬옥,날출,산곤,산강.

<풀 이>
1.습기가 증발하여 구름이 되고 찬공기를 만나며 비가 되지,

2.습기가 찬공기에 닿으면 이슬이 되고 맺히면 서리가 되지,

3.황금은 중국의 여수에서 나지,

4.옥은 곤륜산 등성이에서 나지.

<말,말,말>
1.하늘로 올라가는 것은 구름이요, 하늘에서 내려오는 것은 비니, 올라가면 구름,내려오면 비로 모양이 바뀌니,구름이 비를 따르고 비가 구름을 쫓아 다닐 따름이라네.
2.밤이 되면 온도가 낮아져서 공중에 있는 수증기가 이슬이 되고 더 차가와지면 맺혀서 서리가 되니, 서리가 이슬이요 이슬이 서리지, 이 이치는 모두 농사에 이용이 되었으니 이것이 예날 사람의 지혜?
3. 여수는 중국에서 가장 유명한 금 생산지,옛날에 이 지방 사람들은 강물에서 모래를 건져내어 백번을 일어 금을 만든다고 하지,굴을 팔 수 없었으니까 그렇게 했나.
4,곤륜산 언덕에서 옥을 캐내어 왕에게 받쳤다고 유명해 졌으니 옥은 황금과 더불어 가장 선호했던 장식물이지.
5.옥은 해와 달의 정기로 수천년 동안 정화되었기 때문에 나쁘고 흉한 일을 막을 수 있다고 하여 예날 사람들은 옷에 장식품으로 많이 달았다고 하지, 해와 달의 정기는 수만년의 세월이 흘러서 된 화석을 그렇게 말하는 것이겠지. 끝.

Tuesday, November 24, 2009

TI-89 Titanium Scientific Calculator barely used for selling

TI-89 Titanium, Mini-A to Mini-B USB cable, and Manual

1+1 = 2, it's working great! :)

It has great shape!

Manual is coming together!

Mini-A to Mini-B USB cable is coming together also!

Okay, ready to go through priority mail!

I'm selling used TI-89 Titanium which is in great condition!
It is barely used.
Everything in pictures are included!

- Cosmetically, it is in great shape. Some wears from normal use are hardly noticeable.
- The manual is included.
- The Mini-A to Mini-B USB cable is included.
- Batteries are included.

I think it was coming with a CD, but I can't find it at all. If you want any program for TI-89 Titanium, I think you can download in following sites. I think they have some SDKs and so on.


Product information

TI-89 Titanium
Features Summary

Introducing TI's most powerful graphing calculator: The TI-89 Titanium, offering new features, preloaded Apps, and even more versatility. A built-in USB port makes data transfer ultra-convenient. Plus, with three times the memory of the TI-89, you can store more Apps, data, and programs.

The TI-89 Titanium's advanced functionality and 3-D graphing make problem-solving for AP*, advanced mathematics, and engineering courses infinitely easier. It's the most powerful TI graphing calculator allowed for use on the AP* Calculus, AP Statistics, AP Physics, AP Chemistry, PSAT/NMSQT**, SAT® I , SAT II, and Math IC & IIC exams.

Key Features:
16 preloaded Graphing Calculator Software Applications (Apps), including EE*Pro®, CellSheet™ & NoteFolio™
3x the Flash memory of the TI-89
Built-in USB port with cable
CD with operating manual
All of the features & functionality of the TI-89
Preloaded with Official AP Calculus exam review questions

* AP is a registered trademark of the College Entrance Examination Board, which was not involved in the production of and does not endorse this product.
** PSAT/NMSQT is a registered trademark of both the College Entrance Examination Board and the National Merit Scholarship Corporation, which were not involved in the production of and do not endorse this product.


Sunday, November 22, 2009

천자문 여행 ; 5ㅡ8구

<원 문>

寒 來 暑 往 ㅡ 한 래 서 왕
찰한, 올래, 더울서,갈왕

秋 收 冬 藏 ㅡ 추 수 동 장
가을추, 걷을수,겨울동,감출장

閏 餘 成 歲 ㅡ 윤 여 성 세
윤달윤.남을여,이룰성, 해세

律 呂 調 陽 ㅡ 윤 려 조 양
가락율,음율려,고를조,볕양

<풀 이>

중국에서 지구를 보니,
추위가 오면 더위가 가고, 더위가 오면 추위가 가니 일년이지,
가을에는 거두어 드리고 겨울에는 저장하지,
일년중 남는 날은 모아서 윤달, 윤년을 만들지,
높은 가락과 낮은 가락이 어울려 음악이 들리지.

<말,말,말>

1.봄에는 싹이 트고 여름에는 꽃이 피고 가을에는 열매가 열리고 겨울이면 정리되니 자연의 순환 법칙이지.
2.인간의 지혜로 사철을 만들고 농사짓기에 맞게 24절기를 두었으니 입춘,우수,경첩,춘분.....이지.
3.옛날에는 음력을 사용하였지,달이 열두달을 돌면 1년이 되는데 남는 날이 생기니 3년마다 날 수를 합쳐 한달을 만드니, 윤달, 윤년이 되는 것이지.
4.세상에 소리가 많은데 조화를 시키면 아름다운 음악이 되어 인간의 궁극적인 행복을 쫒는다고 하지,율과 려는 동양에서 음악의 높, 낮이 가락으로 음과 양을 말하는데 어울리면 즐겁지.
5.3일동안 낮에도 영하의 날씨였는데, 낮이 다시 영상의 날씨 5ㅡ12도라고 하면서 T.V.에서 가을에 겨울날씨라고 하네, 가을의 끝자락이 점점 멀어지지....끝.

Saturday, November 21, 2009

Segmentation (image processing)

Computer vision에서 segmentation은 digital image를 복수의 segments (pixel들의 집합, 또는 subpixels)로 나누는 작업을 이야기한다. Segmentation의 목적은 어떤 image를 좀더 의미있고 분석이 쉬운 형태로 단순화하는 것이다. Image segmentation은 전형적으로 object, 또는 boundaries의 위치를 파악하는데 사용된다. 좀더 자세히 이야기하면, image segmentation은 모든 pixel에 label를 할당하는 과정이라 볼 수 있으며 동일한 label을 가진 pixel들은 어떤 visual characteristics를 공유한다.

Image segmentation의 결과는 전체 image를 구성하는 segments의 집합, 또는 image에서 추출해낸 contour들의 집합이다. 어떤 region의 각 pixel들은 color, intensity, 또는 texture같은 어떤 특징 또는 계산된 property에 대해서 유사하다. 인접한 region은 동일한 characteristic에 대해 확연히 다르다.

Friday, November 20, 2009

Wanna Girl - Jeremy Jordan


OK, roll the drums!

I wanna girl, I wanna girl who always has the time, To send my world and count
the stars above, I wanna girl, I wanna girl, who still believes in love,
Someone
who's sensitive enough...

I wanna girl, oh, I wanna girl that I can really trust, I wanna girl, a girl
that's patient
and who'll love me when it's rough.. I wanna girl, I wanna girl as smart as
she'is fine, Someone that I can say is mine..

This girl I'm describing, really does exist, baby have you noticed..

CHORUS: I wanna girl like you, To be with me tonight, I wanna kiss your lips,
and hold you close if that's alright, I wanna girl like you, to keep the feelin
new, I want make the words to say the most...I LOVE YOU, And your love is all I
ever need...

I wanna girl, a girl who makes me laugh, I want her sentimental, and to be my
better half, ah yeah, I wanna girl like the my father loves, If that's the one
I'm dreaming of..

Only one girl lives up to whats on my list, So you need to know this..

Repeat CHORUS

This should be play at high volume, preferably in a residential area

RAP:
I wanna girl if thats alright
I wanna girl to hold me tight
I want you baby (if thats alright with you)
I wanna girl just like you
I wanna girl who makes me do...
Do anything she wants me to (if thats alright with you)

I wanna girl thats patient
I wanna girl thats kind
I just want you baby if thats alright with you
I wanna girl who loves me
Who always has the time
I just need you baby if thats alright with you

Repeat CHORUS

Wednesday, November 18, 2009

Arm chair project

Toshiba's awesome CF!

Tuesday, November 17, 2009

1900년 대 초 조선 말기 식사하는 모습

밥 그릇이 진짜 크다능...

Procedural modeling

Procedural modeling은 3D model들과 texture들을 어떤 rule 들의 집합으로 부터 생성하기 위한 computer graphics의 techniques을 이야기하는 용어이다. L-Systems, fractals, 그리고 generative modeling 등이 scene들을 생성하기 위해 algorithm들을 적용하기 때문에 procedural modeling techniques라 할 수 있다. 사용되는 rule들은 algorithm 내에 embedded되거나, parameters 들에 의해서 설정될 수 있으며, 이러한 rule들은 evaluation engine과는 분리되어 있다. 결과물은 procedural content라 불리우며, computer games이나 film등에 사용되며 internet에 올려지거나 사용자가 수정할 수 있다. Procedural model들은 종종 database를 증폭하는 효과를 나타내며, 이것은 large scene이 적은 수의 rule을 가지고 생성될 수 있음을 의미한다. 만약 채용된 algorithm이 매번 동일한 결과물을 생성한다면, 결과물은 저장될 필요가 없다. 종종, 이러한 효과를 얻기위한 동일한 random seed를 가지고 algorithm을 시작하는 것으로도 충분하다.

모든 modeling technique들이 어느 순가 data를 관리하고 저장하기 위해 algorithm들을 요구함에도 불구하고, procedural modeling은 user input을 통해 model을 수정하기 보다, 어떠한 rule set으로부터 model을 생성하는데 초점을 맞추고 있다. 전통적인 3D modeler들을 이용한 3D model 생성이 번거롭거나, 더 특별화된 tool들이 요구되는 경우 procedural modeling은 훌륭한 대안이 될 수 있다. 특히 plants, architecture, 또는 landscape의 경우 procedural modeling이 대안이 될 수 있다.

Monday, November 16, 2009

Used HP LaserJet 1018 excellent condition for selling

HP LaserJet 1018

HP LaserJet 1018 box full set

Test page - it is working great!

Excellent condition

Right side view... Hm... maybe left side view...

Rear view - I removed the label in this picture intentionally. The physical label is okay!

Left side view... Maybe right side view?

Top view

Front view

Front view with open tray

Okay, now ready to print =)

Print is okay! =)

Good job!

Install CD and some booklets!

Printer in box

And cables in box

Okay, ready to go!

I'm selling excellent condition used HP LaserJet 1018!
Everything in pictures are included!

- Cosmetically is in excellent shape!
- The power cable and printer USB cable are included!
- Install CD and some booklet are included!
- Toner cartridge is included, but I'm not sure how full it is. I think it would be half or quarter full!

Product information

The HP LaserJet 1018 Printer is an incredibly affordable LaserJet printer that delivers a simple, compact design and reliable, consistent results at an ideal price for personal users.

Features
Affordable quality

Step up to HP LaserJet printing. It’s never been more affordable to own HP quality—the HP LaserJet 1018 printer creates impressive printed pages and is priced just right for personal use.

Meet all your personal printing needs. A 150-sheet input tray, a single-sheet priority input slot for specialty paper, and a 100-sheet output bin provide the flexibility to print the documents you need. The printer supports plain and specialty paper up to legal size, as well as envelopes, transparencies, card stock, postcards, and labels.

Print quickly. There’s no need to wait while the printer warms up—you can print a first page from PowerSave mode in less than 10 seconds.1 Complete your printing jobs fast, at speeds of up to 12 pages per minute (ppm) letter.

Space-saving design

Conserve space. Why give up more desk space than you need to? It’s easy to find just the right spot for your printer. Its sleek, compact design makes it an ideal fit for any desktop, shelf, or other small, convenient spot.

Look like a pro. Genuine HP LaserJet print cartridges are designed for reliable, precise operation to provide crisp, sharp text and lines every time you print. You refresh your printer’s imaging system every time you replace an HP LaserJet print cartridge, giving you hassle-free printing.

Simplicity

Just plug it in. Focus on getting your work done instead of learning to use a new device. Convenient, Hi-Speed USB 2.0 connectivity lets you set up in no time. With support for Windows 98 SE, Me, 2000, and XP 32 bit, the printer fits right into your existing environment.

Accomplish more. The host-based print driver quickly translates application output into high-quality print images. The driver uses your PC’s processor and memory rather than the printer’s, which lets you print more complex jobs without the cost of additional printer memory.

Easily access, replace, and order supplies. Carefully designed together with the printer, the HP LaserJet print cartridge is simple to use, featuring HP Ultraprecise toner and the imaging drum in one unit. Print cartridge installation and replacement is quick and convenient.

1. In addition to fast ppm speeds, most HP LaserJet printers include Instant-on Technology, which delivers a first page out from PowerSave mode in industry-leading times, according to Quality Logic Printer Performance Test Reports from August 2005. The technology utilizes an innovative, quick-heating fuser system that virtually eliminates warm-up time.

What's in the box

HP LaserJet 1018 Printer, power cable, CD (includes User's Guide and printer software), welcome mat, 1000-page HP LaserJet black print cartridge (approximate page yield based on five percent coverage)

Product Description

HP LaserJet 1018 printer delivers a simple, compact design and reliable, consistent results at an ideal price for personal users.Step up to HP LaserJet printing. It's never been more affordable to own HP quality - the HP LaserJet 1018 printer creates impressive printed pages and is priced just right for personal use. Meet all your personal printing needs. A 150-sheet input tray, a single-sheet priority input slot for specialty paper, and a 100-sheet output bin provide the flexibility to print the documents you need. The printer supports plain and specialty paper up to legal size, as well as envelopes, transparencies, card stock, postcards, and labels. Conserve space. Why give up more desk space than you need to? It's easy to find just the right spot for your printer. Its sleek, compact design makes it an ideal fit for any desktop, shelf, or other small, convenient spot.

For more information:

Sunday, November 15, 2009

Blacksn0w could have a problem!

Today, my iPhone was gone, so I put it into recovery mode and restore with jailbroken image. Right after restoration, I upgraded cydia and install Blacksn0w. After installation of Blacksn0w, iPhone was searching signals. But, it never got signal. So, I reboot but tt fell into infinite loop of restarting. I tried restore and install a couple of times, but I failed. So, I gave up unlock now.

It's interesting, since I installed blacksn0w before and there was no problem! At that time, I installed blacksn0w through SSH.

Maybe, blacksn0w cydia installation could have a problem or could it have any dependencies?

iPhone mobile configuration

US AT&T: http://sites.google.com/site/collagefactory/programs-1/us_att.mobileconfig?attredirects=0&d=1

How to install gvmobile through ssh

apt-get install com.seankovacs.gvmobile

Saturday, November 14, 2009

When iPhone got booting problem

When iPhone got booting problem, it is impossible to download firmware, since iTune cannot recognize iPhone. In this case, iPhone needs to go recovery mode.

Step 1. Turn off iPhone
Step 2. Connect iPhone to USB cable - it makes iPhone turn on
Step 3. Hold 'home' and 'power' at once until screen goes to black
Step 4. As soon as screen goes to black, release 'power' button while holding 'home' button
Step 5. Wait until iTune recognize iPhone - it takes 10-20 seconds to recognize

Now, iTune shows following dialog box and recognize iPhone.

Step 6. Click 'restore' button in iTune while holding 'shift' key in Windows. In OSX, you need to hold 'opt' key.
Step 7. Choose any firmware.

天字文 旅行 1ㅡ4구

<원 문>
天 地 玄 黃 ㅡ 천 지 현 황 (하늘 천,땅 지,검을 현,누르 황)
宇 宙 洪 荒 ㅡ 우 주 홍 황 (집 우,집 주,넓을 홍,거칠 황)
日 月 盈 仄 ㅡ 일 월 영 측 (날 일, 달 월, 찰 영, 기울 측)
辰 宿 列 張 ㅡ 진 숙 열 장(별 진, 별 숙,벌일 열, 베플 장)

<풀 이>
옛 날 중국에서 보니,
하늘은 검은 색이고 땅은 그 색이 누렇지,
하늘과 땅 사이는 끝없이 넓고 거칠지,
해는 하루에 떳다가 기울고 달은 달마다 찻다가 없어지지.
별과 별 자리들은 널리 벌려 흩어져 있지.

<말,말,말>
1.천자문은 처음 배우는 사람들을 위한 입문서로서 그 내용이 도덕, 종교, 철학,천문,역사,교훈 등모든 것이 포함된 좋은 책이지.
2.천자문은 글자가 1천자로서 모두 중복되는 것이 없다고 전해지나 실제로는 6자가 중복되어 994자가 된다.다 알면 994자이지.
3.중국의 옛 날 왕이 <주흥사>에게 명하여 하루 사이에 편집을 마쳤다고 하니, <주흥사>는 천재임에 틀림이 없으나 천자문을 만들고 나서 검은 머리가 흰머리로 변했으니,정성이 가득 담긴 책이지.
4.미국 나사에서 달나라에 물이 있다는 확실한 증거를 확인했으니,미국에 금융가들 돈 벌일 생겨서 좋겠지, 머리를 어떻게 쓰느냐 하는 것이 문제지,환경 문제,탄산 가스문제? 과학적인 문제네,그러면 도덕적인 문제는,문제는 없어지는 것이 제일 빠른 해결 방법이 아닌가?끝.

Friday, November 13, 2009

IBM System R

IBM System R는 IBM 산 호세 연구 센터(현 IBM Almaden Research Center)에서 1970년대에 연구 project로 개발한 DB system이다.

For more information: http://en.wikipedia.org/wiki/IBM_System_R

Thursday, November 12, 2009

Wednesday, November 11, 2009

Stupid American?

Just for fun! I think any one could answer in this way, especially when embarrassed with sudden question!

Tuesday, November 10, 2009

Used Motorola RAZR V3m Verizon and Bluetooth headset for selling

Box full set

Folder type

From the bottom

Model is V3m

Front

Rear

Bluetooth headset 1

Bluetooth headset 2

Used Motorola RAZR V3m Verizon and Bluetooth headset
Original packaging and everything in the photo is included.
Software and all original cords are included.
This unit worked great.

- Cell phone has some wears and dents from normal use as you can see in pictures, since I didn't use any caring case for the phone.
- Battery is the original battery that came with the phone, so it is 3 years old. I don't think it holds a charge for very long time at all. You might want to buy new one.
- Bluetooth headset came with the phone and it worked great. I rarely used the headset, so I believe it is in great condition.
- USB cable and charger worked great.
- Headset adapter, I never used.
- It includes everything when I purchased.

Item information:

The Motorola RAZR V3m offers the ultimate combination of brains, beauty and best of all - your favorite tunes! Motorola’s thinnest multimedia phone for the CDMA network, the RAZR V3m is a beauty captured in refined metal housing and a sculpted clamshell shape, accompanied by a sophisticated set of multimedia functions. Offering a large color screen and EVDO technology, the Motorola RAZR V3m is the ideal way to keep connected and entertained on the move – complete with integrated music player*, Over the Air (OTA) music downloading* and up to 1GB of removable memory. Fusing the best in multimedia, design and power, the Motorola RAZR V3m is the ultimate blend of style and function.


Instant Entertainment
Whether it’s classic rock or the latest pop sensation, your soundtrack now comes courtesy of your super-slim, super-fast phone. Delivering the ultimate on-the-go entertainment solution, the Motorola RAZR V3m features an integrated music player*, Over the Air music download capabilities** and rapid downloads via hi-speed EVDO technology, the Motorola RAZR V3m—no computer, no wires, no waiting! Just click, download and enjoy your favorite beats on the go. Jam in private via stereo headset support or listen out loud through the V3m’s speakerphone and 72 polyphonic sound engine.

See, snap and share
Throw out those postcards--share your adventures immediately! Capture clear pictures and video of stunning beaches or busy cityscapes via 1.3 mega pixel camera, then send them to instantly to friends and family with a personalized message over email or Multimedia Messaging Service (MMS). Putting your memories in your pocket, the RAZR V3m eliminates the concern of running out of space – with 1 GB of optional memory via microSD™, you can click, send and store with confidence!

Effortless Beauty
Featuring ultra-thin design, aircraft grade aluminum housing and a spun metal keypad, the Motorola RAZR V3m isn’t just a phone – it’s a statement of sophistication. Adding substance to style, this sleek handset delivers convenient functionality with Bluetooth® technology for wireless chats, speaker independent name and digit-dialing for finger-free voice recognition dialing and Location-Based Services Ready**.

SUMMARY OF FEATURES:
• Sleek Motorola RAZR V3m design
• 1.3 megapixel digital camera with 4x digital zoom and video capture, playback and streaming
• Over the Air music downloads*
• Integrated music player* and Stereo Headset Support via EMU
• Up to 1GB optional removable memory
• Brilliant 2.2” 65K TFT color main display
• 65K CSTN color support on external display
• Speaker independent name & digit dialing
• Bluetooth wireless technology, USB 1.1

The Motorola RAZR V3m is expected to be available in the first half of 2006. For more information on pricing and product availability in your region, please check with your local Motorola representative.

*Music capabilities dependent on operator and regional availability and support. Additionally, certain features may not be activated by your service provider, and/or their network settings may limit the feature’s functionality. Always contact your service provider about feature availability and functionality. All features, functionality and other product specifications are based upon the latest available information and are believed to be accurate; however such product specifications are subject to change without notice or obligation.

**Certain mobile phone features are dependent on the capabilities and settings of your service provider’s network.

*** To determine the compatibility of Motorola accessories, visit the customer support page at www.hellomoto.com. For other accessories, contact the manufacturer.

The Bluetooth trademarks are owned by their proprietor and used by Motorola, Inc. under license.

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc. 2006.

Monday, November 9, 2009

fatal error C1083: Cannot open include file: 'gl\glaux.h': No such file or directory

fatal error C1083: Cannot open include file: 'gl\glaux.h': No such file or directory

In Visual Studio, this error could happen when source code includes glaux.h. glaux.h has been deprecated long time ago. So, to avoid this error, just comment out the statement, "#include "gl\glaux.h".

Saturday, November 7, 2009

老子 德經 81;믿음은 있는 말은 꾸밈이 적고, 믿음이 적은 말은 꾸밈이 많다.

<풀이>
믿을 수 있는 말은 아름답지 않지,
아름다운 말은 믿기 어렵지,
바른 말이라야 되지.

착함은 말을 잘 하지 못하지,
말을 잘 함은 착함이 없지,
착함은 착함으로 드러나지.

진실로 아는 자는 많은 것을 모르지,
많은 것을 아는 자는 모르는 것이 많지,
사실은 사실이고 진실은 진실 그 뿐.

바른 사람은 쌓아 둘 사이가 없지,
실력을 항상 베푸니까,
그러니, 항상 가볍지.

이미 남에게 베풀었으니,
그 만큼 또 들어오지,
그러니, 남보다 앞 서지.

자연의 이치(의지)는,
해치지않고,
늘 이롭게 하지.

바른 사람도,
다른 사람과 다투지 않고,
자기 일 하지.

<노자 영어>
True words may not be specious, and specious words may not be true. Good words may not be convincing, and convincing words may not be good. Wise men may not be learned, and the learned may not be wise.
The Sage gives without reservation. He offers all to others, and his life is more abundant. He helds all men alike, and his life is more exuberant.
The way of Heaven is to benefit, and not to harm. The way of the Sage is to give, and not to strive.

<말,말,말>
우주 내에는 천조의 대 성운이 있고, 성운 속에는 일만의 성단이 있는데, 하나의 성단 안에는 백만개의 별이 있으니 이 우주야 말로 백억천 조의 별 꽃밭이다. 백 인치 망원경으로 보아도 이천 만 성운이 보인다고 한다.
우주는 너무 넓고 모르는 것이 많다. 우주가 무엇이냐? 물으면 대답은 신비롭다 아닌가! 끝.

WRE54G for selling

Box full set 1

Box full set 2

WRE54G

Product No. WRE54G ver. 3-US (I modified the picture not to show s/n and mac address in this picture, but the product still has s/n and mac on itself)

Used WRE54G ver. 3-US.
Original packaging and everyting in the photo is included.
Software and all original cords included.
This unit worked great, we just no longer need for our current setup.

Expand Your Wireless Coverage

Expand the range of your wireless home network. The Wireless-G Range Expander is the easy way to increase the effective coverage of your wireless network.

Freedom of Wireless

Unlike adding a traditional access point to your network to expand wireless coverage, the Wireless-G Range Expander does not need to be connected to the network by a data cable. Just put it within range of your main access point or wireless router. It is designed to "bounce" signals into those distant, reflective corners and hard-to-reach areas where wireless coverage is spotty and cabling is impractical. This "relay station" or "repeater" approach helps to build a wireless infrastructure and save wiring costs.

Wide Compatibility

The Wireless-G Range Expander works with most Wi-Fi certified access points and wireless routers. And it works in with both Wireless-G and Wireless-B devices so you'll get the benefits of increased coverage even with a mixed network.

Easy Configuration

Installation is a snap with the Auto Configuration button. Just plug it in and press the button. The Expander is designed to find your wireless network and configure itself automatically.

Minimum Requirements

One WRE54G Wireless-G Range Expander
Two Power Plates
One Setup Wizard CD with User Guide in PDF format
One Quick Installation Guide
One registration card

Maximum performance derived from IEEE Standard 802.11 specifications. Actual performance can vary, including lower wireless network capacity, data throughput rate, range and coverage. Performance depends on many factors, conditions and variables, including distance from the access point, volume of network traffic, building materials and construction, operating system used, mix of wireless products used, interference and other adverse conditions.

Technical Specifications

Model Number: WRE54G
Standards: IEEE 802.11g, IEEE 802.11b
Buttons: Autoconfiguration, Reset
Cabling Type: Cat-5 (only used for configuration)
LEDs: Blue/Red-LINK, Blue-ACTIVITY
Transmit Power: 802.11g: Typ. 13 ± 1dBm @ Normal Temp Range, 802.11b: Typ: 15 ± 1dBm @ Normal Temp Range
Security features: WEP, WPA Personal
WEP Key Bits: 64/128

Key Features

Supports 64 / 128 bit WEP encryption in 802.11b/802.11g wireless LAN
Configurable through your networked PC’s Web browser or the included Setup Wizard
Expand your wireless coverage to eliminate dead spots
Works with both 802.11b and 802.11g wireless networks
RJ-45 10/100 port for easy configuration

Environmental Details

Dimensions 80,7 x 210 x 45 mm
Weight 25 g
Power 3.3V
Certiication FCC, CE, UL
Operating Temp. 0 to 40°C
Storage Temp. 0 to 70°C
Operating Humidity 10 to 85% Noncondensing
Storage Humidity 5 to 90% Noncondensing

Package Contents

802.11b or 802.11g Wireless Network
PC with 802.11b/g Wireless adapter installed
TCP/IP Protocol Installed

Blog Archive