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Category Archives: New Age Technology

Understanding Wi-Fi Direct

We all know that a traditional Wi-Fi network is based on the presence of a wireless access point or a router and these access points basically perform three functions: physical support for wireless and wired networking, routing between devices on the network, and adding and removing devices from the network. But what would you say if one told you about a technology, a Wi-Fi technology, which does not require any router or AP, you would get pleasantly surprised. That is what the new age technology called Wi-Fi direct is all about.

Wi-Fi Direct

Wi-Fi direct is a standard, which has been developed by Wi-Fi Alliance. The standard allows two or more devices to interact directly without the presence of wireless access points or routers. The said devices can then perform several tasks such as printing, syncing, share files and many more. With Wi-Fi direct enabled devices you can play games with your partner without the physical connection between the two devices of yours. And when I say devices they could be anything from smartphones to laptops to cameras to printers to projectors to TVs.

Wi-Fi Direct

But one has to keep this fact in mind that the Wi-Fi direct has not been developed with the intention of replacing the existing standard because the Wi-Fi direct has its own set of bottlenecks such as it is not as secure as the normal standard, then it is a little difficult to control and regulate.

The main function of Wi-Fi direct is mobile sharing with less effort. Let us take an example: if we have to display some of the pics that is on our mobile phone to our Wi-Fi direct enabled TV, with the help of the said standard we can do the same without getting involved in the quagmire of passwords and establishing connection, which we need in the older standard.

Reading Lists:

Samsung Galaxy S III – Features and Images

Bluetooth with A2DP Technology

Active Noise Cancellation Technology

HTC Desire C: First Impression and Review

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Posted by on May 21, 2012 in New Age Technology

 

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Wireless Charging: Pros and Cons

We are living in a world of wireless technologies. When smartphones, tablets, and laptops have become an integral part of most of the people living in this world, have we got freedom completely from the hassles of cords and wires? Still the answer would be “no”. I’m sure; you all will be having a USB cable or charger in our bag to charge the mobile phones or laptops. With the advent of wireless charging- a technology, which is not commonly adopted, life of those people who like to work on the move is slowly revolutionizing for the better.

What is wireless charging?

There are two types of wireless charging: inductive and conductive charging. The inductive charging technique involves an electromagnetic field to transfer charge across a gap and into the device’s battery. The requisite for the inductive charging is an induction coil, which is capable of receiving the wireless energy. On the other side of the table, the conductive charging functions on the direct electrical contact between the power source and the battery.

Inductive Charging

The conductive charging pad contains a conductive panel that gets connected to the similar conductive material on the users mobile device’s aftermarket backs. Big players of the field are: Duracel, Powermat USA, RadioShack. But the inability of the conductive charging pads to get set on the car dashboard and the tray tables of the aeroplanes might prove to be a big bottleneck fot the users.

The inductive charging seems to be scoring over the conductive charging these days. Samsung, LG, RIM, and Motorola are all part of the Wireless Power Consortium, and they all back the inductive charging standard. Since the inductive charging does not need the conductive surface, it allows itself to be mingled with or under any kind of materials. The Wireless Power Consortium takes the inductive standard of charging as the future of wireless charging.

Conductive Charging

The main bottleneck of the wireless charging is the low performance of the batteries and extra heating in comparison with the conventional way of charging. One big disadvantage is the expensiveness of the wireless chargers at the present moment, but that will be taken care of as the demand grows.

This video demonstrates the functioning of the Wireless Charging.

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Resistive vs Capacitive Touchscreen

Bluetooth with A2DP Technology

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Posted by on April 9, 2012 in New Age Technology

 

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HTC Media Link HD vs Apple AirPlay

These are two similar technologies that you can use to transfer music, movies, and photos between mobile and TV.

HTC Media Link HD

HTC Media Link HD is a small box, which hook up to a high definition TV or monitor using an HDMI cable and wirelessly connects with HTC Sense 4 devices to allow users mirror the action from phone display on to big-screen TV. It includes simple gestures to effortlessly navigate between phone and TV display. You just need to swipe three fingers up the on the phone’s screen to send a video/photo to the television. The Media Link HD will support dual-display mode, which implies that one can other functions like web browsing, while streaming video to the TV.  It is sleek and portable device with easy set up option. It works on Wi-Fi network.

HTC has not uttered anything about the pricing and availability, but it is for sure that HTC has a wonderful accessory on its hands – HTC Media Link HD!

Apple’s AirPlay

AirPlay is a proprietary protocol developed by Apple Inc. for wireless streaming of audio, video, and photos. Computer (iTunes 10.2 or later) or iPhone/iPad/iPod (iOS 4.3 or later) connects wirelessly to HDTVs or speakers via Apple TV. With AirPlay set up, users can watch contents from Mac or iPhone/iPad/iPod on HDTV via Apple TV and control them with iOS devices’ Remote app (app that turns iPhone, iPad, or iPod touch into a remote control). Apple TV is digital media receiver from Apple Inc. It has HDMI, Ethernet and microUSB interface and supports connectivity through Wi-Fi as well. It is compatible with HDTVs with HDMI support.

AirPlay works best using Wi-Fi. However, one can go via Ethernet as well, if required.

Which one is the best?

HTC Media Link HD works only with Wi-Fi network while AirPlay is comfortable with both Wi-Fi and Ethernet connection. So, Wi-Fi is must for watching content on HDTVs from HTC phones while an Ethernet connection can also work with AirPlay and Apple TV. HTC Media Link HD let users stream digital contents from only HTC phones and AirPlay fetch music from both phones and computers. So, HTC Media Link HD is a part of small world, and AirPlay is big player in Apple ecosystem.

 
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Posted by on March 30, 2012 in New Age Technology

 

Bluetooth with A2DP Technology

Introduction

With the rapid advancement in science and technology, the world of machines has, in the last decade or so, changed upside down. From the rickety machines to the suave ultraslim laptops, we have witnessed it all, in front of our own eyes. Nothing has remained the same. But one perplexing thing has, till now, not ceased to exist- the cable.  From the charging purpose, to connecting device to receive bigger amount of data, the piquing cable has been found to be ubiquitous.

Bluetooth

But, with the advent of A2DP, the headphones can play music for you without being connected to the music player physically. The obnoxious cord seems to be losing its value in this case. Let’s find out how.

The Functionality

The reason that the A2DP enabled device doesn’t need physical connection with the device is that it has a receiver with an inbuilt battery. In order to get properly acquainted with Advanced Audio Distribution System (A2DP), we will have to know that it is a set of standards for devices, which have Bluetooth. We don’t need to mention that Bluetooth is the same technology that is used in the mobile phone headsets and wireless computer keyboards.

Bluetooth with A2DP

In the simplest terms, the A2DP is a profile that enables the user to stream high quality audio over Bluetooth. The A2DP offers a unilateral stream of high quality stereo sound, not like the conventional Bluetooth devices that do it bilaterally. And one more thing that makes it different is that it is digital. All that the user has to do is to pair the device with the music playing machine, and lo, it is all done. And what else, there can be more than one device connected without being entangled.

One thing here is pretty important to emphasize that not all the latest Bluetooth versions are A2DP enabled; so, those who want the A2DP on their Bluetooth devices should do ample research before going for it. There is one more thing that a music lover should keep in his mind that if he is nurturing  intentions of buying a mono Bluetooth ear piece then it got to have the A2DP on it else the device will not stream music.

 
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Posted by on March 29, 2012 in New Age Technology

 

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Active Noise Cancellation Technology

You must have heard the term Active Noise Cancellation; many of you might be using it on a regular basis.  But, the majority of the populace is still ignorant of what exactly active noise cancellation is all about. In this article we will be trying to demystify active noise cancellation.

A few decades back in time active noise cancellation was first introduced in the cockpit of the fighter jets in the mid fifties. But the technique that was used in cancelling unwanted noise did not get the popularity among common folks until in the year 1970 when Dr. Amar Bose, the founder of Bose Corporation, bring the technology in the market for the users. The same technology is used in the noise cancelling headphones in order to keep the unwanted noise of the outside world at bay.

Now, the question is how does a headphone is able to cut the noise from the outside world and till what degree it can do the same. In order to be able to understand this we should first learn a few things beforehand.

How Active Noise Cancellation technology works?

Noise, as we know, is a mixture of compression and refraction phases of waves. Active Noise cancellation technology creates what is known as antiphase, which is a wave of amplitude similar to that of the outside noise; but with an inverted phase. This antiphase wave, created by the internal circuitry,  comes out of the speakers and mixes with the noise.  Now, it should not be difficult for you to imagine that what will happen when the noise from the outside world meets the noise created by the headphone with inverted phase – you guessed it right folks, they will negate or cancel each other. This phenomenon is known as destructive interference. The term “active” means, the noise cancellation technique required energy, and this energy is derived from an inbuilt battery in the headphones.

Now, going back to the other question that how much noise can the ANC reduce, well, the active noise cancellation technique can cut 100% of the unnecessary noise, but, at the present moment, companies, keeping the angle of  cost effectiveness in eyes, make such headphones that are capable of reducing the noise till 80 to 85%.

Active Noise Cancellation Functionality

You don’t need to doubt, whether the sound waves created by the headphones will interfere the music you want to listen. Headsets with active noise cancellation are good in distinguishing between the audio sources a user wants to listen and undesirable outside noise that annoys him. It is interesting to know that these headsets can be used even when you don’t want to listen to music; by wearing these headsets, you can have a peaceful sleep in a noisy environment.

Hey, the real feel is in experiencing the ANC first hand and not reading articles about it; so, don’t wait guys, go get one for yourself, something like Nokia-BH905i

 
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Posted by on March 29, 2012 in New Age Technology

 

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Defining LED Display

LED screen is a type of video display where small diodes are used, which emit light, that is what is quite conspicuous from the name itself- Light Emitting Diode (LED). It is not that the LED is only used for the video displays but it is widely used for the lightening purpose too like general illumination, stage lighting, and task lighting. But here our heed will entirely be upon the display aspect of the LED.

But before going into the LED display, we should learn a thing or two about the LED panels as they play a vital role in the display system of the LED screen. There are two types of LED panels – one that uses the discrete LEDs and other which is called SMD or Surface Mounted Device. All the big outdoor screens sport discrete LEDs whereas most of the indoor screens wear the SMD. The SMD now is being used by numerous outdoor screens as well.

LED Display

The SMD comprises of three different colored diodes namely red, green, and blue, which are clustered together into a single package, after that the single package is mounted on the driver PC board. These individual diodes are pretty minute in size and are gelled fairly close against one another.

The LED display generally needs to have a screen that is built on the SMD technology and has minimum brightness of 600 candelas (the unit that measures light intensity) per square meter. But if the surroundings sport extreme brightness then this brightness might have to be enhanced. Similarly, if the surroundings are of low light then the brightness requirement might dwindle a little.

A Mobile Handset with LED Display

In today’s time, friends, there are different types of LED displays are found in the market such as: WLED, OLED, AMOLED, Super AMOLED, and Super AMOLED Plus.

Today with the advancement of technology some of the mobile phones also sport top quality LED display like Super AMOLED and AMOLED display, of course they are high end thing meant for the big boys/girls!

In my next post I will be comparing the LED and OLED display one against another for our readers to get properly acquainted with either type of technologies.

 
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Posted by on March 26, 2012 in New Age Technology

 

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