Specifications

A Technical Companion to Windows Embedded Automotive 7 104
devices. Many PDAs use OBEX to exchange
business cards, data, and applications.
OPP—Object Push Profile. OPP defines the
requirements for the protocols and the
procedures to be used by the applications
that are involved in the pushing and pulling
of data objects between Bluetooth devices.
PBAP—Phone Book Access Profile. PBAP
enables the exchange of Phone Book
Objects between devices. It can be used
between a car kit and a mobile phone to let
the car kit display the name of the incoming
caller.
PCE—Phonebook Client Equipment role.
The PCE role is for the device that retrieves
phonebook objects from the phonebook
server.
PCM—A term for data that is encoded as
Linear Pulse Code Modulation (LPCM).
LPCM is a method of encoding audio
information digitally.
PDA—Personal Digital Assistant. PDAs are
handheld (or palmtop) computers. Newer
PDAs also have color screens and audio
capabilities, which allows them to be used
as mobile phones (smartphones), Web
browsers, or portable media players.
PMP—Portable multimedia player. PMPs
are consumer electronics devices that are
capable of storing and playing digital media.
The data is typically stored on a hard drive,
microdrive, or flash memory. Mobile
phones are also sometimes referred to as
PMPs because of their playback capabilities.
POOM― Pocket Outlook Object Model, a
Microsoft Component Object Model (COM)-
based library that provides programmatic
access to Microsoft® Office Outlook®
Mobile Personal Information Management
(PIM) data items and container objects, for
phonebook storage.
PTT—Push-To-Talk. PTT is the process that
gives a user the ability to start a dialog with
the system by pressing a button and
verbally issuing a command. Any speech
process that is executing is paused, and the
system switches to listening mode. When
the system finishes listening, any process
that was paused resumes.
PWM module—Pulse Width Modulation
module. The purpose of the PWM module is
to enable time-critical waveform operations
to be handled by the hardware instead of
by software.
RDS—Radio Data System. A
communications protocol standard for
embedding small amounts of digital
information in conventional FM radio
broadcasts. The RDS system standardizes
several types of information transmitted,
including time, station identification, and
program information.
Remote layer—The layer that enables the
speech service to be invoked remotely on
the Windows Embedded Automotive 7–
based device.
RIL—Radio Interface Layer. RIL provides a
uniform radio interface API that can
interface with a diverse set of radio
modules and standards in the wireless
industry. The RIL makes port
communication easier by providing a
uniform API, because not all radio
interfaces that use an AT interface use the
same command set.
RPP—Recognition Pre-Process. RPP
determines a speech-recognition
confidence score based on user audio input.
The confidence score enables the speech
service to determine the best match
between user audio input and the current
grammar.