Specifications

A Technical Companion to Windows Embedded Automotive 7 105
RTC—Real-Time Clock. A computer clock,
usually in the form of an integrated circuit,
that keeps track of the current time.
SAPI—Speech API. SAPI is an API that was
developed by Microsoft for speech
recognition (converts spoken words to
machine-readable input) and text-to-speech
(the artificial production of human speech)
within Windows-based applications.
SAT―Satellite radio. A satellite radio or
subscription radio (SR) is a digital radio
signal that is broadcast by a
communications satellite, which covers a
much wider geographical range than
terrestrial radio signals.
SBC—Sub-band Codec. SBC is an audio
encoder and decoder used to connect to
the Internet, in addition to Bluetooth high-
quality audio devices, like headphones or
loudspeakers.
SBP2—Serial Bus Protocol 2. SBP2 is a transport
protocol that is defined within Serial Bus, IEEE
Standard 1394-1995 (also known as FireWire or
i.Link), developed by T10.
SCO—Synchronous Connection-Oriented
protocol. SCO is a type of communications
link that is used within the Bluetooth
wireless communications standard for small
electronic devices.
SD card—Secure Digital card. An SD card is
a flash (nonvolatile) memory card format
that was developed by Matsushita, SanDisk,
and Toshiba. SD cards are used in portable
devices, such as digital cameras, handheld
computers, PDAs, mobile phones, and GPS
units.
SDIO—Secure Digital Input/Output. Devices
that support SDIO (typically PDAs, laptops,
or mobile phones) can use small devices
that are designed for the SD form factor,
such as GPS receivers, Wi-Fi or Bluetooth
adapters, modems, Ethernet adapters, or
other mass storage media, such as hard
drives.
SDP—Service Discovery Profile. SDPs are
network protocols that enable automatic
detection of devices and services offered by
the devices on a computer network. (For
example, the Bluetooth SDP is a profile that
is used to find out which Bluetooth services
are offered by the remote device.)
SMS—Short Message Service. API and
router support the SMS services that are
available on mobile phones. SMS is a
communications protocol that enables the
interchange. The SMS API talks to the SMS
router to implement most of the short text
messages between mobile telephone
devices. SMS technology has facilitated the
development and growth of text messaging.
SPP—Serial Port Profile. The SPP emulates a
serial cable to provide an easily
implemented wireless replacement for
existing RS-232–based serial
communications applications, such as
familiar control signals. It provides the basis
for other profiles, such as DUN, Headset
Profile (HSP), and AVRCP profiles.
SyncML—Synchronization Markup
Language. SyncML is a platform-
independent information synchronization
standard.
System grammar—The speech grammar
that is associated with the system. The
system grammar is always active when the
speech system is in listening mode, even if
no application has the token.
TDI—Transport Driver Interface. An
interface in the Windows Embedded CE
operating system that serves as an
adaptation layer to Winsock-based user
APIs. It isolates the highly asynchronous
callback-based architecture of the stack