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Object Exchange (OBEX) Protocol
OBEX is a transfer protocol that defines data objects and a
communication protocol two devices can use to exchange those
objects. OBEX enables applications to work over the Bluetooth
protocol stack as well as the IrDA stack. For Bluetooth
enabled devices, only connection-oriented OBEX is supported.
Three application profiles have been developed using OBEX which
include SYNC, FTP and OPP.
Packet
Format of aggregated bits that are transmitted on a physical
channel.
Page
The initial phase of the connection procedure where a device
transmits a train of page messages until a response is received
from the target device or a timeout occurs.
Page Scan
A procedure where a device listens for page messages
received on its page scan physical channel.
Paging Device
A Bluetooth enabled device that is carrying out
the page procedure.
Paired Device
A Bluetooth enabled device with which a link key has
been exchanged (either before connection establishment was
requested or during connecting phase).
Pairing
The process of establishing a new relationship between two Bluetooth
enabled devices. During this process a link key is exchanged
(either before connection establishment was requested or during
connecting phase).
Parked Device
A device operating in a basic mode piconet that is
synchronized to the master but has given up its default ACL
logical transport.
Passcode
When pairing devices, it is strongly recommended to use a
passcode 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 passcode
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.
Physical Channel
Characterized by synchronized occupancy of a sequence of RF
carriers by one or more devices. A number of physical channel
types exist with characteristics defined for their different
purposes.
Physical Link
A baseband-level connection between two devices established using
paging.
Piconet
A collection of devices occupying a shared physical channel where
one of the devices is the piconet master and the remaining
devices are connected to it.
Piconet Physical Channel
A channel that is divided into time slots in which each slot is
related to an RF hop frequency. Consecutive hops normally
correspond to different RF hop frequencies and occur at a
standard hop rate of 1600 hops/s. These consecutive hops follow a
pseudo-random hopping sequence, hopping through a 79 RF channel
set.
Piconet Master
The device in a piconet whose Bluetooth clock and Bluetooth
device address are used to define the piconet physical
channel characteristics.
Piconet Slave
Any device in a piconet that is not the piconet master, but is
connected to the piconet master.
PIN
A user-friendly number that can be used to authenticate
connections to a device before paring has taken place.
Participant in Multiple Piconets (PMP)
A device that is concurrently a member of more than one piconet,
which it achieves using time division multiplexing (TDM) to
interleave its activity on each piconet physical channel.
The Parked Slave Broadcast (PSB)
The Parked Slave Broadcast logical transport that is
used for communications between the master and parked devices.
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