Friday, February 11, 2011

CrazyEngineers Forum

CrazyEngineers Forum

Need a help for mpeg video coding procedure

Posted: 11 Feb 2011 09:46 AM PST

Hi!:)
i need to state the complete MPEG video coding procedure;).so please help me 2 state how the MPEG video coding procedure works! :)
thanx!

Bluetooth Architecture: Concept Explained

Posted: 11 Feb 2011 08:59 AM PST

I am trying to share some of my knowledge about the Bluetooth Architecture.

Here it goes:

Let us begin with a brief overview of what it contains and what it is intended to do.
The basic unit of a bluetooth system is a 'piconet', which consists of a master node and up to seven active slave nodes within a distance of 10 meters.
Multiple piconets can exist in the same (large) room and can be connected via a bridge node.

An interconnected collection of piconets is called a scatternet.



In addition to the seven active slave nodes in a piconet, there can be up to 255 parked nodes in the net. These are devices that the master has switched to a low-power state to reduce the drain on their batteries. In parked state, a device cannot do anything except respond to an activation or beacon signal from the master. There are also two intermediate power states, hold and sniff, but these will not concern us here.


The reason for the master/slave design is that the designers intended to facilitate the implementation of complete Bluetooth chips for under $5. The consequence of this decision is that the slaves are fairly dumb, basically just doing whatever the master tells them to do.

At its heart, a piconet is a centralized TDM system, with the master controlling the clock and determining which device gets to communicate in which time slot. All communication is between the master and a slave; direct slave-slave communication is not possible.

Explaining Concept: Invention of Bluetooth- The Story of the Birth

Posted: 11 Feb 2011 08:39 AM PST

In 1994, the L.M. Ericsson Company became interested in connecting the mobile phones to other devices without cables. Together with four other companies namely, IBM, Intel, Nokia and Toshiba, it formed a SIG (Special Interest Group i.e. consortium) to develop a wireless standard for interconnecting computing and communication devices and accessories using short-range, low-power, inexpensive wireless radios.

The project was named 'Bluetooth' after Harald Blaatand, a Viking King who unified Denmark and Norway 'without cables' :)

Although the original idea was to just get rid of the cables between devices, it soon began to expand in scope and encroach on the area of wireless LANs.
In July 1999, the Bluetooth SIG issued a 1500-page specification of V1.0
Shortly thereafter, the IEEE standards group looking at wireless personal area networks, 802.15 adopted the bluetooth document as a basis and began hacking on it. While it might seem strange to standardize something that already had a very detailed specification and no incompatible implementations that needed to be harmonized, history shows that having an open standard managed by a neutral body such as IEEE often promotes the use of the technology.

To be a bit more precise, it should be noted that Bluetooth specification is for the complete system, from the physical layer to the application layer of the OSI Model.

events help for tech fest

Posted: 11 Feb 2011 08:11 AM PST

hii everyone, i'm pursuing electrical engg from dce.. plz help me out on some crazy events in electrical and electronics engineering.
kindly do reply fast.....

competition - your idea to improve the manufacturing of wafer

Posted: 11 Feb 2011 07:28 AM PST

@font-face { font-family: "Arial"; }@font-face { font-family: "ＭＳ 明朝"; }@font-face { font-family: "ＭＳ 明朝"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Cambria; }span.hps { }.MsoChpDefault { font-family: Cambria; }div.WordSection1 { page: WordSection1; } The Festo Engineering Network's Idea Contest seeks your ideas about key challenges of wafer based manufacturing in the field of photovoltaic.
Join the contest and share your ideas with the community and industry experts!

Submit your own idea, discuss and evaluate the ideas of others and win amazing prizes. So far, only six ideas (no kidding!) were submitted, so when making a good idea, your chances of winning are increasingly high (especially if you have a look at the duration – only 6??? Weeks left)!

In order to make good suggestions, you can see in the following lines the problems of the individual processes.

Process Acidic
If etched too roughly, the solar cell performance is limited by the high surface recombination velocity of the front surface. Too smooth surfaces limit the short circuit current due to the high reflectance. So, how to find an optimal compromise?
Process Phosphorus Diffusion
Automation system for loading and unloading the wafers
Process PS Getch
An important wet chemical process step following the PSG etch is a short etch of the emitter in order to decrease the phosphor content at the wafer surface (dead layer) and therefore to decrease the surface recombination velocity.
Process Single Side Polish Etching
Wrap around, Replacement of HF
Process SiNx Arc v2 PECVD
All systems on the market are using special carriers to transport the samples in and out of the deposition chambers. Thus, an automation system is required that loads and unloads the carriers. Wafer breakage and limited throughput can be challenges. Since all major systems on the market are either PECVD or sputtering equipment, the deposition process itself is performed under vacuum conditions. The pressure difference between the process pressure and the ambience is another challenge leading to the grouping of the wafer flow within the production environment.
Process Screen Printing
Automated handling of thin wafers d<150µm, Breakage rate caused by mechanical stress during print process, Alignment to existing structures on wafer (selective emitter concepts, metal wrap-through, emitter wrap-through)
Process Fast Firing
During firing many processes are taking place. This makes this process powerful but also difficult to optimize since the individual processes which are taking place should be all optimized within the same process. Wafer bow is a challenge for thin wafers and firing furnace outlet automation.
Process Laser Edge Isolation UJ
Provide a cost effective process, Processing of one wafer in < 1 second, Removal of process dust to prevent contamination of process, Ensure precise calibration between vision and laser system for accurate wafer detection and accurate laser processing close to the environment and coverage of used optics substrate's edge
Process solar cell testing and sorting
Automated handling and contacting of thin wafers d<150µm, Correct calibration of the flasher,
Automated contacting back contact cells

Harmonica: Institution Of Engineers, Nagpur

Posted: 11 Feb 2011 07:11 AM PST

hey people..we have the Harmonica conference again at the institution of engineers in nagpur. it will commence tomorrow at 10.30 am. topics related to harmonic mitigation will be discussed. i will like to hav eyour views CEans!:D

hello

Posted: 11 Feb 2011 06:53 AM PST

hello guys..:) i am shubhankar deshkar from nagpur. i am currently studying at shri ramdeobaba kamla nehru engineering college. i am in 3rd year electrical engineering. i love singing. i also write articles for CE on voice. i would be obliged if you read them. comments are most welcome. i would like to reply to them as soon as possible. that would add to my knowledge base..thank you..

Happy Birthday Thomas Edison

Posted: 11 Feb 2011 05:18 AM PST

Lets Celebrate the great Inventor of the most used "Electric Buld" , Thomas Edison's birthday!


:birthday::birthday:
Thomas Edison - Wikipedia, the free encyclopedia

Work shop

Posted: 11 Feb 2011 02:57 AM PST

Hi friends i want to attend any workshop in march 1st weak ,so is there any workshops in march and may.

‘State of the ART’ Seminar Programme announced for NEW:UK 2011

Posted: 11 Feb 2011 02:45 AM PST

February 11th 2011 - NEW:UK 2011 is pleased to announce details of the 'State of the ART' Seminar programme running at this year's event on 12th – 13th April 2011 in the Pavilion of the NEC.
The NEW:UK 2011seminars programme will deal with subjects across the breadth of the electronics industry and therefore fits well with the extended exhibitor list.

These seminars are free to attend and will cover key topics, up to the minute industry trends and look at UK electronics as an industry and address ways to improve and develop your business methods.

The seminars feature companies such as:
• Rohde & Schwarz
• ST Micro, RS Components
• Remploy
• ARM

With titles spanning from
• 'Advanced manufacturing for the electronics industry'
• 'The growing movement in open source hardware'
• 'The untapped potential - increasing the opportunities for people with disability in the electronics sector'
• 'Rapid prototyping for microcontrollers'
• 'Lowest price, highest performance, broadest range of Cortex M MCU's. What can I do with that?'

NEW:UK 2011 has something for everybody involved in the UK electronics sector both within our seminar content and our exhibiting companies with their wide range of products and services.
Commenting on this seminar programme, National Electronics Week Event Director, Claire Saunders, explains "Peoples time is valuable so when they come out of the office they need to ensure their best return on their time, we therefore feel it is essential to have an educational stream to our event. These seminars help to reinforce the skills and strengths of UK electronics, offering our industry opportunities to improve on what is already seen worldwide as a leading force in quality, reliability and expertise."

For a full list of seminars and to pre-register free for this event visit our website -
www.new-expo.co.uk
or call us on + 44 1483 420 229

ENDS

Advanced Rework Technology is a fully independent training organisation who have delivered training courses since 1988. They are one of the few fully accredited IPC certification centres in the world, ART provides a variety of electronics companies with IPC-certificated training at both instructor and operator level. Training is carried out using the latest equipment for soldering and rework of printed circuit boards while, an independent consultancy, the organisation can also provide valuable advice on specialist electronics equipment.

National Electronics Week - If you thought you knew what NEW UK represented you need to take another look. We shine the spotlight on sectors such as embedded systems and software, rapid prototyping, component manufacturing, component distribution, power supplies, capital equipment, PCB equipment manufacturers and services and board manufacturers plus many more. If you are a involved in the UK electronics industry then NEW UK is the show you must be at.

Media Contact:
Claire Saunders,
claire[at]neweventsltd[dot]com
+ 44 1483 420229

Distributed on behalf of New Events Ltd by NeonDrum news distribution service (http://www.neondrum.com)

IBM recruitment(Tech support) drive by STED in association with careergrew on 12 feb

Posted: 11 Feb 2011 01:03 AM PST


STED in association with CAREERGREW and rajamahendra college of engineering organizing a recruitment drive for IBM TECH SUPPORT FOR HELP DESK
Job Role: IT Helpdesk – Technical Support Associate
Eligibility:
Good communication skills are requisite
Willingness to work in shifts
Graduates from any discipline (2007, 2008, 2009, 2010 passouts) and
Diploma holders (10+2+3)
Knowledge of computer hardware and networking concepts
Work location – Bangalore
Job Description :
Providing Voice & E-Mail Technical Help Desk Services support to IBM
for more details click here!

IAN Workshop International Patenting Strategies - 18th February 2011 Bengaluru

Posted: 10 Feb 2011 09:41 PM PST

IAN Incubator has initiated a series of workshops for entrepreneurs across different cities to educate aspiring entrepreneurs and start-ups on challenges faced by them and help them in tackling these challenges better.

"International Patenting Strategies " is the next workshop on the series

Speakers

Arjun Bala, Managing Partner Meta Yage IP Strategy Consulting

Arjun Bala is a registered patent agent in India since 2004. He specializes in counselling technology startup companies on integrating IP issues into their business plans and strategies and leveraging patents as assets and for competitive advantage. Previous to founding Meta Yage, he established India Operations for a US patent law firm where he worked for silicon valley based startup companies and VCs, as well as MNC companies with R&D centers in Bangalore. He has been trained by leading US patent attorneys on US patent prosecution and patent due diligence for Venture Capital Investment. He holds an Integrated MSc in Chemistry from IIT Bombay, and a diploma in IP Law from IES, Bombay.

Mohammad Rahman,Registered patent attorney and Principal, Rahman LLC

Mohammed Rahman is a principal in the US patent law firm Rahman LLC based in Washington DC and he is a registered patent attorney. He earned a Bachelors of Science degree in Mechanical Engineering from the University of Maryland Baltimore County in 1995. He earned a Juris Doctor degree from the Villanova University School of Law in 1999 while simultaneously earning a Masters in Business Administration from Villanova University's College of Commerce and Finance in 1999, where he was named to the Beta Gamma Sigma national honor society. Mr. Rahman is a member of the Maryland State Bar, and is registered to practice before the United States Patent and Trademark Office.

Key Takeaways

International patenting using Paris Convention and Patent Cooperation Treaty (PCT) routes
Patent law in the US with an emphasis on the software, internet and telecommunications domains

Registration fees : Rs. 500 per delegate ( Inclusive of Service Tax)

Gala Networking Lunch, 1 PM Onwards

To Register: IAN Incubator| Incubation in India

Email: workshops@indianangelnetwork.com or Call: +91-11-4075 5716 / +91 8800814256 for more details

Samsung Exynos 4210 ARM Processor Aka Orion Is Awesome. Bye Hummingbird!

Posted: 10 Feb 2011 09:40 PM PST

Samsung Exynos 4210 is the latest in the family of dual-core application processors and its the improved version of the popular Hummingbird of 2010. Samsung will begin the commercial production of Orion in the next month. However when these processors hit your tablets and phones, they’ll be known as ‘Exynos’. If you’re wondering how to [...]

More...

Freestyle: Coca Cola’s Knockout Punch!

Posted: 10 Feb 2011 09:00 PM PST

Coca cola has "opened newer avenues for happiness" in the form of Freestyle, its latest soda fountain dispenser. The signature moves of freestyle include: Touch screen LCD panel Vends 106 drinks Equipped with Wi-fi modem, connected in real time to the Coke's Atlanta headquarters through internet. Body designed by Pininfarina, Italian car design firm (also [...]

More...

Internet Explorer 9 Release Candidate REview

Posted: 10 Feb 2011 08:50 PM PST

I thought of posting a review of recently released RC version of the Internet Explorer 9. But then thought of making it a group review. IE9 RC is available for download here: Download languages for Internet Explorer 9 - Microsoft Windows

Download it on your computers and post your reviews in this discussion.
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)