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3DESTriple Data Encryption Standard
AALnATM Adaptation Layer n
AACAdvanced Audio Coding—in the context of MPEG
AAFAdvanced Authoring Format
AC3Audio Compression 3 used by ATSC
ADCAnalog to Digital Converter
ADPCMAdaptive Differential Pulse Code Modulation
ADSLAsymmetric Digital Subscriber Line
AESAuthority and Format Identifier—in the context of DSM-CC NSAP address
AFIAdvanced Encryption Standard
AGCAutomatic Gain Control
AIRApplication Information Resource—in the context of cable HOST-POD interface
AITApplication Information Table—in the context of MHP
AEEApplication Execution Environment
APIApplication Interface
AEITAggregate Event Information Table used by cable systems' EPG
ADETAggregate Data Event Table used by cable systems' EPG
ANSIAmerican National Standards Institute
ATSCAdvanced Television Systems Committee
ATVEFAdvanced Television Enhancement Forum
ARIBAssociation of Radio Industries and Businesses
ASCIIAmerican Standard Code for Information Interchange
ASFAdvanced (formerly Active) Streaming Format (Microsoft's MPEG-based AVI successor)
ASNAbstract Syntax Notation—used in the context of X.509 certificates, ASN.1/DER
ATMAsynchronous Transfer Mode
AVAudio Video
AVIAudio Video Interleaved
AWTAbstract Windowing Toolkit
B2BBusiness to Business
B2CBusiness to Consumer
BFSBroadcast File System
BGPBorder Gateway Protocol—in the context of W3C
BIFFBinary Interchange File Format—in the context of MPEG-4
BIOPBasic Input Output Protocol—in the context of CORBA, DSM-CC
BISDNBroad-band Integration Services Digital Network
BMLBroadcast Markup Language—in the context of ARIB
BMPBitMaP—in the context of Windows
bpsBits per second
bslbfbit serial, leftmost bit first
BTABroadcasting Technology Association in Japan
CACertificate Authority
CAConditional Access
CATConditional Access Table—in the context of MPEG PSI
CATVConditional Access TV
CCIRComite Consultatif International des Radiocommunications
CCITTComite Consultatif International de Telegraphique et Telephonique—not ITU-T
CDACompact Disc Audio
CDATACharacter Data—in the context of W3C DTD
CDRCommon Data Representation
CEConsumer Electronics
CEAConsumer Electronics Association
CERNConseil European pour la Recherché Nucleaire
CICommon Interface
CLUTColor Lookup Table
CMTSCable Modem Termination System
COFDMCoded Orthogonal Frequency Division Multiplexing
COMCommon Object Model
CORBACommon Object Request Broker Architecture
CPUICentral Processing Unit
CRLCertificate Revocation List
CRCCyclic Redundancy Check—see Section for the CRC algorithm.
CRIDContent Reference Identifier
CRLCertificate Revocation List
CRLFCarriage Return followed by a Line Feed
CRTCathode Ray Tube
CSRCContributing SouRCe—in the context of RTP
CSSCascading Style Sheets
CTLCertificate Trust List
CVCTCable Virtual Channel Table
CVIDCinepak (Radius)—in the context of video frame format
DACDigital to Analog Converter
DARPADefense Advanced Research Projects Agency
DASEDTV Applications Software Environment
DAUData Access Unit—in the context of MPEG
DAVICDigital Audio Visual Council
DCCDirected Channel Change
DCDDocument Content Description—in the context of W3C
DCMDevice Control Module—in the context of HAVi
DCTDiscrete Cosine Transformation
DCCTDiscrete Channel Change Table
DDBDownload Data Block—used in the context of DSM-CC
DDIData Driven Interaction
DDEDeclarative Data Essence
DEBnData Elementary Stream Buffer for synchronized data elementary stream n
DEBSnData Elementary Stream Buffer Size for synchronized data elementary stream n
DERDefinite Encoding Rules—used in the context of X.509, ASN.1/DER
DESData Elementary Stream
DESData Encryption Standard
DETData Event Table
DECTDigital Enhanced Cordless Telecommunications
DFTDiscrete Fourier Transform
DHDiffie Hellman—a cipher
DHCPDynamic Host Configuration Protocol
DHTMLDynamic Hypertext Markup Language
DIBDevice Independent Bitmap—in the context of Windows
DIIDownload Info Indication—used in the context of DSM-CC
DLPDiscrete Logarithm Problem—in the context of the DH cipher
DMIFDSM-CC Multimedia Integration Framework
DOCSISData Over Cable Service Interface Specification
DOMDocument Object Model—in the context of W3C
DTSDecoding Time Stamp—in the context of MPEG
DVBDigital Video Broadcasting in Europe
DVRDigital Video Recording
DPXDigital Picture eXchange
DRMData Rights Management—in the context of copyright protection
DSIData Service Initiate—used in the context of DSM-CC
DSADigital Signature Algorithm
DSMDigital Storage Media
DSM-CCDigital Storage Media Command and Control
DSM-CC-OCDigital Storage Media—Command and Control Object Carousel
DSM-CC-UUDigital Storage Media—Command and Control User to User
DSSDigital Signature Standard
DSTData Service Table—in the context of ATSC A90
DTDDocument Type Definition—in the context of W3C XML
DTSDecoding Time-Stamp—in the context of MPEG
DTVDigital Television
DVBDigital Video Broadcast
DVBSIDigital Video Broadcast Service Information
DVDDigital Video Disk
DVSDigital Video Service
DWDMDense Wavelength Division Multiplexer
EBUEuropean Broadcasting Union
ECMEntitlement Control Message
ECMAEuropean Computer Manufacturers Association
EDLEdit Decision List
EEExecution Engine
EFTAEuropean Free Trade Association
EKEEncrypted Key Exchange
EITEvent Information Table
EPGElectronic Program Guide
ESElementary Stream—in the context of MPEG
ESCRElementary Stream Clock Reference—in the context of MPEG
ETMExtended Text Message
ETTExtended Text Table
ETSIEuropean Telecommunications Standards Institute
FDCForward Data Channel
FDDIFiber Distributed Data Interface
FIPSFederal Information Processing Standard
FourCCFour Character Code—in the context of file type identifiers
FTPFile Transfer Protocol
FTTCFiber To The Curb
GCTGlobal Color Table—in the context of graphics file formats
GIFGraphics Interchange Format
GSMGlobal System for Mobile communications
GPSGlobal Positioning System
GUIGraphical User Interface
GXFGeneral eXchange Format
HALHardware Abstraction Layer
HAViHome Audio Video interpretability
HDHigh Definition
HDTVHigh Definition Television
HFCHybrid Fiber Coax
HTMLHypertext Markup Language
HTTPHyper Text Transport Protocol
IANAInternet Assigned Numbers Authority—in the context of W3C
ICIntegrated Circuits
ICAPInteractive Communicating Application Protocol
ICCInternational Color Consortium
IDEAInternational Data Encryption Algorithm—a cipher
IDLInterface Definition Language
IECInternational Electrotechnical Commission
IEEEInstitute of Electrical and Electronics Engineers
IETFInternet Engineering Task Force
IFIntermediate Frequency
IGMPInternet Group Management Protocol—in the context of IP multicast
IHDNIn-Home Digital Networks
IIOPInternet Inter-ORB Protocol—in the context of CORBA, DSM-CC
IHDNIn Home Digital Network
IORInteroperable Object Reference—in the context of CORBA, DSM-CC
IPInternet Protocol
IPPVImpulse Pay Per View
IPRIntellectual Property Rights
IPVBIIP Multicast over VBI
IRDIntegrated Receiver Decoder
ISIntensity Stereo—in the context of MP3
ISANInternational Standard Audiovisual Number
ISBNInternational Standard Book Number
ISDNIntegrated Services Digital Network
ISOInternational Organization for Standardization
ISPInternet Service Provider
ITUInternational Telecommunication Union
IWSInitial Working Set—in the context of iTV applications
JARJava Archive
JAASJava Authentication and Authorization Service
JCAJava Cryptography Architecture
JCEJava Cryptography Extensions
JCICJoint Committee on Intersociety Coordination
JDKJava Development Kit
JFIFJPEG File Interchange Format
JMFJava Media Framework
JNGJPEG Network Graphics
JNIJava Native Interface
JNMJava Native Methods
JPEGJoint Picture Expert Group
JPGAn image file in the JPEG format
JSJoint Stereo—in the context of MP3
JSSEJava Secure Socket Extension
JVMJava Virtual Machine
KbpsKilobits per second
KDFKey Derivation Function
KLVKey Length Value
LANLocal Access Network
LBILate Binding Interface
LCDLiquid Crystal Display
LIDLocal Identifier
LISPLIS Processing—a programming language
LLC-SNAPLogical Link Control – Sub Network Access Protocol
LMDSLocal Multipoint Distribution System
LSDLogical Screen Descriptor—in the context of graphics file formats
LSFLow Sampling Frequency—in the context of MPEG AAC
MACMedia Access Control—used in the context of MPEG
MACMessage Authentication Code—used in the context of IP Security
MBGPMulticast Border Gateway Protocol—in the context of IP multicast
MbpsMillions of bits per second
MD5Message Digest 5
MDCTModified Discrete Cosine Transformation
MGTMaster Guide Table
MIDIMusical Instrument Digital Interface (and file format)
MITREMissile Test and Readiness Equipment
MIMEMultipurpose Internet Mail Extensions
MHEGMultimedia Hypermedia Expert Group
MHPMultimedia Home Platform
MMDSMultipoint Microwave Distribution System
MNGMultiple image Network Graphics
MNGLCLow-Complexity MNG
MOVQuickTime MOVie format
MP3MPEG-1 Level 3 Audio
MPEGMoving Picture Experts Group
MRDMPEG-2 registration descriptor
MRLEMicrosoft Run Length Encoding
MSBMost Significant Bit
MSDPMulticast Source Directory Protocol—in the context of IP multicast
MSOMultiple (cable) System Owner
MTUMaximum Transmission Unit
MXFMaterial eXchange Format
NABNational Association of Broadcasters—in the US
NANNot A Number
NABTSNorth American Basic Teletext Specification (EIA-516)
NCTANational Cable Television Association
NICNetwork Interface Card
NISDNNarrow-band Integration Services Digital Network
NISTNational Institute of Standards and Technology
NPTNormal Play Time
NRTNetwork Resources Table—in the context of ATSC A90
NSAPNetwork Service Access Point—in the context of MPEG DSM-CC
NTSCNational Television System Committee
NTPNetwork Time Protocol—in the contest of W3C
NVODNear Video On Demand
OCObject Carousel (DSM-CC)—in the context of MPEG
OCAPOpenCable Application Platform—in the context of SCTE
ORBObject Request Broker—in the context of CORBA, DSM-CC
OSOperating System
OSDOn Screen Display
OSGIOpen Systems Gateway Initiative
OSPFOpen Shortest Path First—in the context of IP multicast routing
OUIOrganization Unique Identifier
PALPhase Alternation Line—in the context of European TV broadcast format
PAMPulse Amplitude Modulation
PATProgram Association Table
PCDATAParsed Character Data—in the context of W3C DTD
PCMPulse Code Modulation
PCMCIAPersonal Computer Memory Card International Association
PCRProgram Clock Reference—in the context of MPEG
PDAPersonal Digital Assistants
PDMPulse Duration Modulation
PEPresentation Engine
PEMPrivacy Enhanced Mail
PESPacketized Elementary Stream
PFRPortable Font Resource
PIDPacket Identifier
PGPPretty Good Privacy—a family of security software systems
PIMProtocol Independent Multicase—in the context of IP multicast
PIMDMProtocol Independent Multicase Dense Mode—in the context of IP multicast
PKIPublic Key Infrastructure
PKIXPKI X.509—in the context of digital certificates
PLMNPublic Land Mobile Network
PMTProgram Map Table
PNGPortable Network Graphics
PODPoint of Deployment
PPVPay Per View
PSIProgram Specific Information
PSIProgram Specific Information—in the context of MPEG
PSIPProgram and System Information Protocol
PSTDProgram System Target Decoder—used in the context of MPEG buffer models
PSTNPublic Switched Telephone Network
PTSPresentation Time Stamp
PUPresentation Unit
PVRPersonal Video Recorder
QAMQuadrature Amplitude Modulation
QoSQuality of Service
QPSKQuadrature Phase Shift Keying
RARegistration Authority
RADIUSRemote Authentication Dial-In Server/Service
RAMRandom Access Memory
RCRemote Control
RDCReverse Data Channel
RDFResource Description Framework—in the context of W3C
RDPRemote Display Protocol
RFCRequest For Comments—used in the context of W3C
RGBRed Green Blue—in the context of color model
RGBARed Green Blue Alpha—in the context of color model
RIFFResource Interexchange File Format
ROMRead Only Memory
RPRendezvous Point—in the context of IP multicast routing
RPFReverse Path Forwarding—in the context of IP multicast routing
RSARivest Shamir Adelman—a cipher
RSVPResource reSerVation Protocol
RTOSReal-Time Operating System
RTPReal-Time Protocol
RTCPReal-Time Control Protocol
RTSPReal-Time Streaming Protocol
RRTRating Region Table
SAPSession Announcement Protocol—in the context of IP multicast
SBNSSatellite and Broadcast Network System
SCPService Control Protocol
SCRSystem Clock Reference—in the context of MPEG
SCSISmall Computer System Interface
SCTESociety of Cable Telecommunications Engineers
SDStandard Definition
SDDSelf Describing Device
SDHSynchronous Digital Hierarchy
SDFService Description Framework—in the context of ATSC A90
SDKSoftware Development Kit
SDPSession Description Protocol—in the context of IP multicast
SDTService Description Table
SDTVStandard Definition Television
SECAMSéquentiel Couleur Avec Mémoire—a French Color TV Standard
SGMLStandard Generalized Markup Language
SGWService Gateway—in the context of DSM-CC
SHA1Secure Hashing Algorithm 1
SISystem Information
SIPSession Invitation Protocol
SMATVSatellite Master-Antenna Television
SMDSSwitched Multimegabit Data Service
SMILSynchronized Multimedia Integration Language
SMPTESociety of Motion Picture and Television Engineers
SMSShort Message Service—in the context of the cellular industry
SMSSubscriber Management System—in the context of cable systems
SMTPSimple Mail Transfer Protocol—Internet email
SMTVSatellite Master Antenna Television
SONETSSynchronous Optical NETwork
SPTShortest Path Tree—in the context of IP multicast routing
SRMSession Resource Manager
SSLSecure Socket Layer
SSRCSynchronization SouRCe—in the context of RTP
STBSet Top Box
STCSystem Time Clock
STDSystem Target Decoder
STLPSecure Transport Layer Protocol
STTSystem Time Table—in the context of PSIP
STVSubscription TV
SVCSwitched Virtual Circuits
SVGSwitched Vector Graphics
TAPTransport Access Partition
TBnTransport Buffer for data elementary stream n
TBSnTransport Buffer Size for data elementary stream n
TCPTransmission Control Protocol
TCP/IPTransmission Control Protocol/Internet Protocol
TFSTransport File System
TNSTemporal Noise Shaping—in the context of MP3
TLSTransport Layer Security
TSTransport Stream
TSFSTransport Stream File System
TSIDTransport Stream Identifier
TSTDTransport System Target Decoder—used in the context of MPEG buffer models
TTLTime To Live—in the context of W3C
TVCTTerrestrial Virtual Channel Table
UARTUniversal Asynchronous Receiver/Transmitter
UCSUniversal Multiple-Octet Coded Character Set
UDPUser Datagram Protocol
UHTTPUnidirectional Hyper Text Transport Protocol
UIUser Interface
UMIDUniversal Material Identifiers
URIUniform Resource Identifier
URNUniform Resource Name
URLUniform Resource Locator
UTFUCS Transformation Coding
UTCCoordinated Universal Time1
UUUser to User (DSM-CC Object Carousel)
UUIDUniversally Unique ID
uimsbfUnsigned Integer, Most Significant Bit First
VBIVertical Blanking Interval
VCTVirtual Channel Table
VCRVideocassette Recorder
VMVirtual Machine
VODVideo On Demand
VQVector Quantization
VSBVestigial Side Band
W3CWorld Wide Web (WWW) Consortium
WAEWireless Applications Environment
WAPWireless APplications
WANWide Area Network
WAVWave file format—in the context of Windows audio files
WDPWireless Datagram Protocol
WMLWireless Markup Language
WSPWireless Session Protocol
WSTWorld System TeleText (PAL television captioning and data standard)
WTLSWireless Transport Layer Security
WTPWireless Transaction Protocol
X509A standard for Certificates and Certificate Revocation Lists, RFC 3280
XAITeXtensible Application Information Table—in the context of MHP
XDMLeXtensible DTV Markup Language
XHTMLeXtensible Hypertext Markup Language
XMLeXtensible Markup Language
XMLDSIGXML Digital Signatures
XPathXML Path Language
XQLXML Query Language
XSDXML Schema Definition—in the context of W3C
XSLeXtensible Stylesheet Language—in the context of W3C; usually refers to XSLT
XSLTeXtensible Stylesheet Language Transformations—in the context of W3C
ZIPCompression and archiving file format



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