Transmitta II

For all music lovers who never wants to move around without listening to there favorite tunes. heres a new gadget named as Transmitta II, this can enable you to spread sound around on almost any music player by your PC, TV, Stereo, etc. at any corner of your house, flat or even office, so if you want to listen in MTV in your bathroom just plug it in.
Transmitta II comes with one transmitter and other part is the receiver. Transmitter can easily be plugged to any audio source around, whether it may be CD player, Computer, TV, Ipod etc. by a headphone socket or USB. And on other end, Receiver can easily be connected to any music device by an Auxiliary socket. The Transmitta II works on 2.4GHz frequency allowing to transmit CD Quality sound streaming, and use frequency hopping to detect if there may be conflict with any other devices.

Features in detail:

• Play almost any music player wirelessly through your PC, TV or stereo.
• One transmitter.
• One receiver.
• Units speak to one another via 2.4GHz frequency providing a CD quality audio.
• A 50m transmission distance.
• 16 channel selection.
• 2 audio cables.
• A USB cable.
• An I/O converter.
• An internal battery that recharges via the mains or USB.
• A minimum of 6 hours use per full charge.
• Power and charge LED indicators.
• Size: 7 x 5 x 2cm (per receiver/transmitter).

Sony 7-layer holographic discs for recording

Sony has recently wrote and read data on a medium which is the equivalent to a 7-layer disc, courtesy of its “Micro-Reflector method” - a multilayer recording technology using holographic recording. Sony took the opportunity to blow its trumpet at the recently concluded ISOM ‘07 in Singapore, making a speech concerning the speeding up of data transmission speeds, improvement in memory density per layer as well as increasing the number of recording layers even more so that an absurd amount of data can be stored on a single disc (and to think they already have trouble filling up a Blu-ray disc at this point in time…)

Using the Micro-Reflector method, lights are shed on both sides of a holographic medium. The focus points of the lights will then meet and interact with each other in a recording layer, forming interference fringes. Each interference fringe will be able to store up to 1 bit of information, and in order to read data stored on it, a light is shed on one side of the medium. It might baffle some to think that while interference fringes are recorded on holographic media, why is Sony touting this to be a multilayer recording technology instead? There is a very good reason for that - interference fringes can be recorded in layers of various depths as if they are recorded on multilayer media if the depth of focal point is changed.

So far, Sony has managed to achieve a memory density of 1.2GB per layer, calculated in terms of a 12cm disc. So far all experiments have involved a small disc of about 8cm in diameter, where interference fringes were recorded on a concentric area of about 200μm in the diametrical parallel direction. At the end of the day, this effort will see Sony push itself closer to its goal of manufacturing a 500GB 20-layer disc by the time 2010 rolls around. Would we still be storing data on physical media by then, or would Google control the entire world’s storage without doing evil? Hopefully the US dollar will be worth something then though.