Bluetooth Devices Other Devices

Other Devices
The list of Bluetooth enabled devices is growing all the time. Other devices that now come with Bluetooth technology include cameras, camcorders, keyboards, mice and photo frames to name a few.
Bluetooth Glossary
This Bluetooth Glossary will explain more about the different profile types and help you to understand bluetooth compatibility.

Advanced Audio Distribution Profile (A2DP)
The A2DP profile describes how stereo quality audio can be streamed from a media source. A typical usage scenario can be considered as the “walkman” class of media player. The audio source would be the music player and the audio output is the wireless headset. A2DP defines the protocols and procedures that allow the distribution of high quality audio content in mono or stereo.

Audio/Video Remote Control Profile (AVRCP)
AVRCP is designed to provide a standard interface to control TVs, Hifi equipment, etc… This profile is used to allow a single remote control (or other device) to control all the A/V equipment that a user has access to. AVRCP defines how to control characteristics of streaming media. This includes pausing, stopping, starting playback and volume control as well as other types of remote control operations.

Bluetooth Profiles
Bluetooth profiles are general behaviours through which Bluetooth enabled devices communicate with other devices. Bluetooth technology defines a wide range of profiles that describe many different types of use cases. In order to use Bluetooth technology, a device must be able to interpret certain Bluetooth profiles. The profiles define the possible applications.

Dial-up Networking Profile (DUN)
DUN provides a standard to access the Internet and other dial-up services via Bluetooth wireless technology. The most common scenario is accessing the Internet from a laptop by dialling up on a mobile phone, wirelessly.

Generic Object Exchange Profile (GOEP)
GOEP is used to transfer an object from one device to another. The object may be any object such as a picture, document, business card, etc. The profile defines two roles, a server that provides the location from which an object is pulled or pushed, as well as a client that initiates the action. GOEP provides a generic blueprint for other profiles using the OBEX protocol.

Hands-Free Profile (HFP)
HFP describes how a gateway device can be used to place and receive calls for a handsfree device. A typical configuration is a car using a mobile phone as a gateway device. In the car, the stereo is used for the phone audio and a microphone is installed in the car for sending outgoing audio of the conversation. HFP is also used for a personal computer to act as a speakerphone for a mobile phone in a home or office environment.

Headset Profile (HSP)
The HSP describes how a Bluetooth enabled headset should communicate with a mobile phone or other Bluetooth enabled device such as a computer. When connected and configured, the headset can act as the remote device’s audio input and output interface.

Human Interface Device Profile (HID)
The HID profile defines the protocols, procedures and features to be used by Bluetooth enabled HID, such as keyboards, pointing devices, gaming devices, and remote monitoring devices. Sony Ericsson handsets support the HID profile.

Object Exchange (OBEX) Protocol
OBEX is a transfer protocol that allows devices to exchange files, such as Images, Videos and Music Files

Pairing
The process of establishing a new relationship between two Bluetooth enabled devices. During this process a passkey is exchanged either before connection establishment was requested or during connecting phase. Some devices will need to be put into “pairing mode” before pairing can begin.

Passcode
When pairing devices, it is strongly recommended to use a pass code to authenticate incoming connections. Also, in certain connection situations you may desire additional assurance that you are connecting to the device or person you expect. A pass code can normally be any combination of keys (letters or numbers). Do use caution as some devices do not map characters similarly. Passkeys are valid only for the connection and may be different for other devices or users.

Personal Area Networking Profile (PAN)
PAN describes how two or more Bluetooth enabled devices can form an ad-hoc network and how the same mechanism can be used to access a remote network through a network access point. The profile roles include the network access point, group ad-hoc network and personal area network user.

SIM Access Profile (SAP)
SAP allows devices such as car phones with built in GSM transceivers to connect to a SIM card in a Bluetooth enabled phone. Therefore the car phone itself does not require a separate SIM card.

Synchronization Profile (SYNC)
The SYNC profile is used in conjunction with GOEP to enable synchronization of calendar and address information (personal information manager (PIM) items) between Bluetooth enabled devices. A common application of this profile is the exchange of data between a PDA and computer.

Pairing Mode
Most Bluetooth devices will need to be put into pairing mode before it can be linked to another device. During pairing mode the device will send out a signal that will allow it to be found by the device that is trying to link to it. By having a pairing mode it prevents unauthorised users from accessing a device.