Technology for New Generation

Li-Fi ( Light Fidelity ) Li-Fi ( Light Fidelity ) is a bidirectional , high speed and fully networked wireless communication technology similar to Wi-Fi . Coined by Prof. Harald Haas, [ 1 ] Li-Fi is a subset of optical wireless communications (OWC) and can be a complement to RF communication ( Wi-Fi or Cellular network ), or a replacement in contexts of data broadcasting . It is so far measured to be about 100 times faster than Wi-Fi , reaching speeds of 224 gigabits per second . [ 2 ] It is wireless and uses visible light communication or infra-red and near ultraviolet (instead of radio frequency waves) spectrum, part of optical wireless communications technology, which carries much more information, and has been proposed as a solution to the RF-bandwidth limitations . [ 3 ] A complete solution includes an industry led standardization process. Technology details   This OWC technology uses light from light-emitting diodes (LEDs) as a medium to deliver netwo...

The Future of Mobile Phones............  Use Any Phone on Any Wireless Network.....   The reason most cell phones are so cheap is that wireless carriers subsidize them so you'll sign a long-term contract. Open access could change the economics of the mobile phone (and mobile data) business dramatically as the walls preventing certain devices from working on certain networks come down. We could also see a rapid proliferation of cell phone models, with smaller companies becoming better able to make headway into formerly closed phone markets.   What is it? Two years is an eternity in the cellular world. The original iPhone was announced, introduced, and discontinued in less than that time, yet carriers routinely ask you to sign up for two-year contracts if you want access to their discounted phones. (It could be worse--in other countries, three years is normal.) Verizon launched the first volley late last year when it promised that "any devic...

Google and Microsoft Building Smart Power Grids....   If you think the two technology giants Google and Microsoft compete only on cloud-based applications and new-age search engines, you’ll be surprised to know that they are making forays into developing two-way power grids that will not only bring electricity to your house, but will also help you optimize usage and consequently, save money.  The problem with the current power distribution is that it is like a one-way traffic. While the power is constantly being transmitted to your homes, nothing is transmitted from your homes to the power stations. Do the power stations want power from your homes? No, but they can definitely use the user trends information and make power available accordingly. It’s practically impossible to make informed choices if you don’t have the right information. Google’s PowerMeter and Microsoft’s Hohm aim to achieve exactly that. They will provide you information that can help you...

Solar-Powered Keyboards.........   If you have opted for a wireless keyboard you know the importance of rechargeable batteries and a wall charger. Although it is easier to charge the batteries after a while it becomes an annoyance to change them repeatedly. Now Logitech is coming out with a solar-powered keyboard that will be free of such hassles.     No need for you to be outdoors to charge your solar powered keyboard. You can stay indoors and the solar powered keyboard will charge itself from indoor lights. They have embedded an integrated power-indicator light that will warn you in advance about the power status of the keyboard. Citizen (the watchmaker) has offered solar-powered watches for years that tell time and get power from sunlight or indoor lights. Now Logitech is making use of the same technology in their solar-powered keyboards. Denis Pavillard is the vice president of product marketing for Logitech’s keyboards and desktops. He ...