Bluetooth; Devices

Bluetooth® devices use the Bluetooth protocol and broadcast in the 2.4-GHz frequency range. They transmit short-range signals and eliminate the need for cable connections between electronic devices such as a computer and a mouse, a computer and a keyboard, and a cell phone and headset. Bluetooth is a registered trademark of the Bluetooth Special Interest Group (SIG), a trade association of electronics manufacturers that promotes Bluetooth technology and ensures compliance. Although Bluetooth was designed to replace short-range cable protocols, Bluetooth technology has expanded into short-range networking. Today’s Bluetooth devices communicate via a standard radio frequency (RF) and may comply with Bluetooth versions 1.0, 1.00b, 1.1, and 1.2.

There are many types of Bluetooth devices. Examples include headsets, headphones, mice, keyboards, speakers, adapters, and dongles. Bluetooth headsets are hands-free, wireless devices for cell phone users. They attach to the caller’s ear and enable drivers to comply with laws that require headset use while operating a motorized vehicle. Similarly, Bluetooth headphones enable users of MP3 players to listen to music and other audio files without cable connections. Bluetooth mice and Bluetooth keyboards for personal computers (PC) are also available. A Bluetooth mouse and a Bluetooth keyboard are designed to connect directly to a Bluetooth PC and without a transceiver. Using such Bluetooth devices, the computer’s universal serial bus (USB) ports become available for other consumer electronics, such as a digital camera that can upload photos to a PC.

Like other types of Bluetooth devices, Bluetooth speakers and Bluetooth adapters comply with various Bluetooth versions. Bluetooth speakers are designed for use with A2DP-compatible MP3 players, mobile phones, and other electronic devices. Advanced audio distribution profile (A2DP) defines how Bluetooth audio is streamed from one wireless device to another via a Bluetooth connection. The benefits of Bluetooth speakers include allowing the listener to make playlist changes remotely. The main disadvantage, however, is that some older Bluetooth speakers may not project the same high-quality audio as wired connections. Wireless Bluetooth USB adapters are designed to provide Bluetooth connectivity so that users can synchronize or transfer files from cell phones to PCs without cable connections. Bluetooth dongles are USB to Bluetooth adapters and Bluetooth devices that sometimes do not require external drivers.

• Integrated Bluetooth Technology
  Integrated Bluetooth technology refers to devices that come with or are design with the ability to receive and transfer radio signals via Bluetooth. Bluetooth is a wireless short-range radio...
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• Alternate Data Storage Forensics
  Alternate Data Storage Forensics With a series of case studies using bleeding edge forensic analysis tools, this book demonstrates how to perform forensic investigations on a variety of ADS...
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• Dealing with Power Management Requirements in Ultraportable Devices
  A new breed of extremely small electronic products promises to extend the digital lifestyle into entirely new domains. Ranging from Bluetooth® wireless headsets and handheld GPS devices to tiny MP3...
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Part Numbers for Bluetooth Devices