Sunday, July 24, 2005

THE ART OF CONNECTING THINGS - BLUETOOTH

LOGO COURTESY BLUETOOTH SIG

Most of us know about bluetooth.Thanks to bluetooth its possible to connect a mobile to any other bluetooth compatible device without the messy wires.Bluetooth is wireless and automatic, and has a number of interesting features that can simplify our daily lives.At times i get these crazy ideas to make evrything in my room compatible with bluetooth.My ideas vary from being able to turn on or off the lights with bluetooth or reduce the fans speed and so on.I aint no tech wiz so not sure if any of those are possible.If they are and if you know how to do so please do let me know.Drop me a line at methegreat34@hotmail.com


For those of you who dont know much about blutooth,lets start from the basics.
Bluetooth is a standard developed by a group of electronics manufacturers that allows any sort of electronic equipment -- from computers and cell phones to keyboards and headphones -- to make its own connections, without wires, cables or any direct action from a user. Bluetooth is intended to be a standard that works at two levels:
It provides agreement at the physical level -- Bluetooth is a radio frequency standard.
It also provides agreement at the next level up, where products have to agree on when bits are sent, how many will be sent at a time and how the parties in a conversation can be sure that the message received is the same as the message sent.

The companies belonging to Bluetooth Special Interst Group want to let Bluetooth's radio communications take the place of wires for connecting peripherals, telephones and computers.

The Bluetooth Solution

Bluetooth is intended to get around the problems that come with both infrared and cable synchronizing systems. The hardware vendors, which include Siemens, Intel, Toshiba, Motorola and Ericsson, have developed a specification for a very small radio module to be built into computer, telephone and entertainment equipment. From the user's point of view, there are three important features to Bluetooth:
1)It's wireless. When you travel, you don't have to worry about keeping track of a briefcase full of cables to attach all of your components, and you can design your office without wondering where all the wires will go.
2)It's inexpensive.
3)You don't have to think about it. Bluetooth doesn't require you to do anything special to make it work. The devices find one another and strike up a conversation without any user input at all.
Bluetooth Frequency
Bluetooth communicates on a frequency of 2.45 gigahertz, which has been set aside by international agreement for the use of industrial, scientific and medical devices (ISM).

A number of devices that you may already use take advantage of this same radio-frequency band. Baby monitors, garage-door openers and the newest generation of cordless phones all make use of frequencies in the ISM band. Making sure that Bluetooth and these other devices don't interfere with one another has been a crucial part of the design process.

Saturday, July 23, 2005

MUST KNOWS ABOUT A CELL-PHONE

If you travel a lot, you will probably want to look for phones that offer dual band, dual mode or both.

Dual band - A phone that has dual-band capability can switch frequencies. This means that it can operate in both the 800-MHz and 1900-MHz bands. For example, a dual-band TDMA phone could use TDMA services in either an 800-MHz or a 1900-MHz system.

Dual mode - In cell phones, "mode" refers to the type of transmission technology used. So, a phone that supported AMPS and TDMA could switch back and forth as needed. It's important that one of the modes is AMPS -- this gives you analog service if you are in an area that doesn't have digital support.

Dual band/Dual mode - The best of both worlds allows you to switch between frequency bands and transmission modes as needed.

Changing bands or modes is done automatically by phones that support these options. Usually the phone will have a default option set, such as 1900-MHz TDMA, and will try to connect at that frequency with that technology first. If it supports dual bands, it will switch to 800 MHz if it cannot connect at 1900 MHz. And if the phone supports more than one mode, it will try the digital mode(s) first, then switch to analog.

Sometimes you can even find tri-mode phones. This term can be deceptive. It may mean that the phone supports two digital technologies, such as CDMA and TDMA, as well as analog. But it can also mean that it supports one digital technology in two bands and also offers analog support. A popular version of the tri-mode type of phone for people who do a lot of international traveling has GSM service in the 900-MHz band for Europe and Asia and the 1900-MHz band for the United States, in addition to the analog service.

Thursday, July 21, 2005

AND THEN CAME ALONG THE SMARTPHONE








Think of a daily task, any daily task, and it's likely there's a specialized, pocket-sized device designed to help you accomplish it. You can get a separate, tiny and powerful machine to make phone calls, keep your calendar and address book, entertain you, play your music, give directions, take pictures, check your e-mail and do countless other things. But how many pockets do you have? Handheld devices become as clunky as a room-sized supercomputer when you have to carry four of them around with you every day A smartphone is one device that can take care of all of your handheld computing and communication needs in a single, small package. It's not so much a distinct class of products as it is a different set of standards for cell phones to live up to. This HowStuffWorks article explores what makes a cell phone a smartphone, how the idea came about and what you can do with it.

What's a Smartphone?

Unlike many traditional cell phones, smartphones allow individual users to install, configure and run applications of their choosing. A smartphone offers the ability to conform the device to your particular way of doing things. Most standard cell-phone software offers only limited choices for re-configuration, forcing you to adapt to the way it's set up. On a standard phone, whether or not you like the built-in calendar application, you are stuck with it except for a few minor tweaks. If that phone were a smartphone, you could install any compatible calendar application you like.

Since cell phones and PDAs are the most common handheld devices today, a smartphone is usually either a phone with added PDA capabilities or a PDA with added phone capabilities. Here's a list of some of the things smartphones can do:

1)Send and receive mobile phone calls

2)Personal Information Management (PIM) including notes, calendar and to-do list

3)Communication with laptop or desktop computers

4)Data synchronization with applications like Microsoft Outlook and Apple's ICal

5)E-mail

6)Instant messaging

7)Applications and configurations that the user can do him/herself

8)Play audio and video files in some standard formats


The Future of Smartphones

Possibly the most exciting thing about smartphone technology is that the field is still wide open. It's an idea that probably hasn't found its perfect real-world implementation yet. Every crop of phones brings new designs and new interface ideas. No one developer or manufacturer has come up with the perfect shape, size or input method yet. The next "killer app" smartphone could look like a flip phone, a tablet PC, a candy bar or something no one has conceived of yet.

Even the protocols are still evolving. One interesting new set of services to watch is called 3G (third-generation). These formats, like W-CDMA, CDMA2000 and TD-SCDMA, have the ability to carry both voice and data over the same service. GPRS is considered a "2.5G" technology because it allows the user to send voice and data at the same time but much slower than with 3G. Although these networks are still in their early stages, many analysts believe that in a few years time, all of the major cell-phone providers will have switched over to one 3G format or another.

Sunday, July 17, 2005

ABOUT ME






My life is based on a true story. It all started on 13th of July 1985. The world has changed a lot since then. I spent most of my life in DUBAI. Life there can be very much fun if you are loaded with the right tools(cash mainly). Been through a lot of ups and downs in my life but here i am ,still standing.

A little more about me.Lets start with food.Love anything and everything my mom makes(she is the best). Pizza,pasta ,all kinds of fastfood and so on(it will take forever if i give the whole list).
Favourite color is silver.
Favourite number is 91(no reason in particular).
Love playing snooker.Basketball is also another game i enjoy.
Hate smiling for photographs.
love the outdoors.
music.
Used to love cats.but then i realised ,they just sit there.Its dogs now.That was my cat but i got run over by a car :(



My schooling days was really fun and exciting.I really miss those days.Finished my 12th in dubai.Right now doing engineering in kerala. Although engineering wasnt what i had in mind, fate led me in to this. Always had business in my mind. Engineering is hectic.2 more years of engineering to go.Who knows what after that.

I've had this thing for mobiles from a long time.Somthing about mobiles that just is amazing.As one can see,mobiles have gone through a revolution.There used to be days when a mobile was just an adult thing.Now , its more of a fashion statement.It can define the social status of a person.In the beginning a cellfone was almost a foot long thing with a huge antenna that was purely used for communication purpose.Slowly the size started reducing and one fine day there was no antenna.It became more affordable to the common man.Every Tom Dick and Harry had a mobile.Mobiles started becoming a must have gadget.People became more dependant on their cellfones.Then came the color display phones.The craze for ringtones and wallpapers was in the air.Every kid wanted a cellfone with ployphonic ringtones.Thanks to the latest technology,you can now surf the internet and watch your favorite television show on your mobile now.I guess in a few years any thing one can think of will be possible on a cellfone.