Bluetooth over Wi-Fi brings huge speed boosts!!

A new Bluetooth specification for portable devices will piggyback on their built-in Wi-Fi hardware to accelerate file transfer speeds by a huge margin. The process, technically known as



Alternate MAC/PHY will reportedly become an official addition to the Bluetooth specification this April.

It involves having devices search for and recognize each other using standard Bluetooth handshake protocols, and then handing over actual file transfers to the devices' Wi-Fi hardware using an ad-hoc connection while control over the connection remains with the Bluetooth controller. Speeds could jump upto Wi-Fi's current 54 Mb/s rating. But that's not all! According to Broadcom, some of its chips already in circulation can be upgraded with just a firmware flash.

Ref: Chip

How to delete a USB drive or USB device’s hardware signature?

This article would help you delete a particular USB Device's hardware signature or a USB Drive from the XP or Vista.

In order to show installed devices that are not currently connected to the computer in the 'Device Manager', follow these steps: -

• Click 'Start | All Programs | Accessories | Command Prompt'
• In Command Prompt, type the following command and then press [Enter]:
• set devmgr _ show _nonpresent _ devices=1
• Then type 'start devmgmt.msc' and press [Enter] to open the 'Device Manager'.
• Now you will be able to see all the disconnected USB and other hardware devices in the Device Manager. You can safely delete each one even if they are not connected (shown in grey).

Note: Sometimes in the ‘Device Manager’ you might have to click on ‘View | Show hidden devices’ in case you cannot view the disconnected hardware devices.




Ref: Chip