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The following table catalogs the definitions of acronyms used in ATSC standards, recommended practices, and informational documents. For each entry, the source document is listed along with the definition given in the document. The definitions given herein represent the definition contained in the referenced document.

Entry

Source

Definition

[X]

153

the greatest integer less than or equal to X

16QAM

80

16 (level) quadrature amplitude modulation

16-VSB

53, 54

vestigial sideband modulation with 16 discrete amplitude levels.

1CBPS

80

1 coded bit per symbol

2CBPS

80

2 coded bits per symbol

8PSK

80

8 (level) phase shift keying

8-VSB

53, 54

vestigial sideband modulation with 8 discrete amplitude levels.

A/D

53, 54

analog to digital converter

AAC

153

Advanced Audio Coding

ABA TDES

70

112 bit triple DES used in "encrypt-decrypt-encrypt" mode

ABC TDES

70

168 bit triple DES used in "encrypt-decrypt-encrypt" mode

AC-3

79, 83

ATSC Digital Audio Compression Standard (see A/52)

ACAP

101, 102

Advanced Common Application Platform

ACAP-J

101

ACAP Procedural (Java)

ACAP-X

101

ACAP Declarative (XHTML)

ACATS

53, 54

Advisory Committee on Advanced Television Service

ACIR

82

adjacent channel interference ratio

ACLR

82

adjacent channel leakage ratio

acmod

52

audio coding mode

ACRR

82

adjacent channel rejection ratio

addbsi

52

additional bit stream information

addbsie

52

additional bit stream information exists

addbsil

52

additional bit stream information length

AEIT

81

aggregate event information table

AES

53, 54

Audio Engineering Society

AES

153

Advanced Encryption Standard (AES may also refer to the Audio Engineering Society)

AETT

81

aggregate extended text table

AFI

95

authority and format identifier

AFD

54, 79

active format description.

ALC

153

Asynchronous Layered Coding

AMOL

79

automated measurement of lineups

ANSI

53, 54, 79

American National Standards Institute

API

100

application programming interface

ARM

96, 100

application reference model

ASCII

80

American Standard Code for Information Interchange

ASI

79

asynchronous serial interface

ASTD

81

ancillary service target decoder

AT

153

ATSC time

ATC

82

ancillary terrestrial component (MSS terrestrial base stations)

ATM

53, 54

asynchronous transfer mode

ATPC

82

automatic transmitter power control

ATSC

70, 65, 69, 71, 79, 80, 81, 82, 85, 90, 91, 92, 95, 96, 98, 99, 110, 153

Advanced Television Systems Committee

ATSC-M/H

153

ATSC Mobile/Handheld Standard

ATTC

54

Advanced Television Test Center

ATV

53, 54

advanced television

ATVEF

91

Advanced Television Enhancement Forum

audblk

52

audio block

audprodi2e

52

audio production information exists, ch2

audprodie

52

audio production information exists

auxbits

52

auxiliary data bits

auxdata

52

auxiliary data field

auxdatae

52

auxiliary data exists

auxdatal

52

auxiliary data length

AVC

153

Advanced Video Coding (ITU-T H.264 | ISO/IEC 14496-10)

AWGN

54, 80

additive white Gaussian noise

B

153

SCCC output block length in symbols

baie

52

bit allocation information exists

bap

52

bit allocation pointer

BAS

82

Broadcast Auxiliary Services (Part 74 of the FCC Rules)

BCRO

153

broadcast rights object

BER

80, 82

bit error ratio

BFO

82

brute force overload

BFSK

82

binary phase-shift keying

bin

52

frequency coefficient bin in index [bin]

BIOP

95

broadcast inter-ORB protocol

blk

52

block in array index [blk]

blksw

52

block switch flag

BMP

65, 69

basic multilingual plane

bnd

52

band in array index [bnd]

bps

53, 54, 90

bits per second

bpsk

81

binary phase shift keying

BSD/A

153

Broadcast Service Distribution/Adaptation Center

bsi

52

bit stream information

bsid

52

bit stream identification

bslbf

57, 65, 69, 70, 81, 90, 92, 93, 94, 95, 97, 98, 100, 110, 153

bit serial, leftmost bit first (From A/57A: "Bit string, left bit first, where "left" is the order in which the bit strings are written in the Standard. Bits strings are written as strings of 1s and 0s within single quotation marks, e.g. ‘1000 1001’. Blanks within a bit string are for ease of reading and have no significance."

BSM

153

BCAST subscription management

bsmod

52

bit stream mode

BSS

82, 110

buried spread spectrum (direct sequence)

BTSC

79

Broadcast Television Systems Committee

BWS

80

slot bandwidth (for a given service, within a transponder)

BWT

80

transponder bandwidth

C/I

110

signal-to-interference ratio (between transmitters within a network)

C/N

82

carrier to noise

CA

70, 81

conditional access

CAM

70

conditional access module

CAT

65, 69, 70, 81, 94, 98

conditional access table

CBC

70, 96

cipher block chaining

CDTV

54

conventional definition television

CEA

69, 79

Consumer Electronics Association

CDP

79

caption distribution packet

ch

52

channel in array index [ch]

chbwcod

52

channel bandwidth code

chexpstr

52

channel exponent strategy

chincpl

52

channel in coupling

chmant

52

channel mantissas

CIT-MH

153

ell information table for ATSC-M/H

clev

52

center mixing level coefficient

CM

79

component missing (see A/78)

cmixlev

52

center mix level

CMRS

82

commercial mobile radio services (cellular, SMR and PCS)

COFDM

82

coded orthogonal frequency division multiplexing

compr

52, 79

compression gain word

compr2

52

compression gain word, ch2

compr2e

52

compression gain word exists, ch2

compre

52

compression gain word exists

copyrightb

52

copyright bit

cplabsexp

52

coupling absolute exponent

cplbegf

52

coupling begin frequency code

cplbndstrc

52

coupling band structure

cplco

52

coupling coordinate

cplcoe

52

coupling coordinates exist

cplcoexp

52

coupling coordinate exponent

cplcomant

52

coupling coordinate mantissa

cpldeltba

52

coupling dba

cpldeltbae

52

coupling dba exists

cpldeltlen

52

coupling dba length

cpldeltnseg

52

coupling dba number of segments

cpldeltoffst

52

coupling dba offset

cplendf

52

coupling end frequency code

cplexps

52

coupling exponents

cplexpstr

52

coupling exponent strategy

cplfgaincod

52

coupling fast gain code

cplfleak

52

coupling fast leak initialization

cplfsnroffst

52

coupling fine SNR offset

cplinu

52

coupling in use

cplleake

52

coupling leak initialization exists

cplmant

52

coupling mantissas

cplsleak

52

coupling slow leak initialization

cplstre

52

coupling strategy exists

CRC

53, 54,65, 69, 81, 82, 90, 91, 92, 93, 95, 98, 153

cyclic redundancy check

crc1

52

crc - cyclic redundancy check word 1

crc2

52

crc - cyclic redundancy check word 2

crcrsv

52

crc reserved bit

CRL

96

certificate revocation list

CS

110

cadence signal

csnroffst

52

coarse SNR offset

CSS

100

Cascading Style Sheet

CTA

153

clear-to-air

CVCT

65, 69, 71, 81, 90, 94

cable virtual channel table

CW

70

control word (The key used for MPEG transport scrambling).

D/U

54, 110

desired (signal) to undesired (signal) ratio

d15

52

d15 exponent coding mode

d25

52

d25 exponent coding mode

d45

52

d45 exponent coding mode

DA

100

declarative application

DAE

100

Declarative Application Environment

DASE

96, 100

DTV Applications Software Environment

DAU

90, 91, 93, 95

data access unit

DAVIC

91, 100

Digital Audio Visual Council

dB

85

decibel

dB FS

85

decibels, relative to full scale sine wave (per AES17)

dB TP

85

decibels, true-peak relative to full-scale (per ITU-R BS.1770 Annex 2)

dba

52

delta bit allocation

dbpbcod

52

dB per bit code

DBFS

79

deciBels full scale

DBS

79

direct broadcast satellite

DC

91

DownloadCancel

DCC

57, 65, 69, 94

directed channel change

DCCRR

65

DCC capable DTV reference receiver

DCCSCT

65, 69

DCC selection code table

DCT

53, 54

discrete cosine transform

DDB

91, 95

DownloadDataBlock

DDE

92

declarative data essence

DEB

92, 93

data program element buffer

DEBn

90, 91

data elementary stream buffer for synchronized data elementary stream n

DEBSn

90

data elementary stream buffer size for synchronized data elementary stream n

deltba

52

channel dba

deltbae

52

channel dba exists

deltbaie

52

dba information exists

deltlen

52

channel dba length

deltnseg

52

channel dba number of segments

deltoffst

52

channel dba offset

DENG

82

digital electronic news gathering

DES

70

Data Encryption Standard

DES

70, 90, 93, 96

data elementary stream

DET

69, 81, 90, 91, 92, 93, 94

data event table

DFS

110

data field synchronization data segment

DH

96

Diffie-Hellman

DHCP

96

dynamic host configuration protocol

dialnorm

52

dialogue normalization word

dialnorm2

52

dialogue normalization word, ch2

DII

91, 94, 95

DownloadInfoIndication

DIMS

153

dynamic interactive multimedia scenes

DIT

69

data information table

dithflag

52

dither flag

DLNA

71

Digital Living Network Alliance

DNS

96, 153

domain name services

DOCSIS

96

Data Over Cable Service Interface Specification

DOM

100

document object model

DRC

79, 85

dynamic range control

DRL

82

data return link

DRM

153

digital rights management

DS

110

delay spread

DSI

91, 94, 95

DownloadServerInitiate

DSL

96

digital subscriber line

DSM

54

digital storage media

DSM-CC

54, 81, 90, 91, 92, 93, 94, 95, 96

digital storage media command and control

DSNG

80

digital satellite news gathering

DSS

54

data segment synchronization

DST

90, 81, 91, 93, 94, 95

data service table

dsurmod

52

Dolby surround mode

DTD

100

document type definition

DTH

80

direct to home

DTS

53, 54, 81, 90, 92

decoding time stamp

DTV

65, 69, 70, 79, 80, 90, 91, 96, 100, 110

digital television

DTVCC

94

digital television closed captioning

DTx

110

distributed transmission

DTxA

110, 153

distributed transmission adapter

DTxN

110, 153

distributed transmission network

DTxP

110

distributed transmission packet

DTxR

110

distributed translator

DTxS

110

distributed transmission system

DTxT

110

distributed transmitter

DVB

69, 70, 79, 80, 81, 90, 153

Digital Video Broadcasting

DVB-SI

80

Digital Video Broadcasting—Service Information

DVCR

54

digital video cassette recorder

DVS

69, 81

Digital Video Subcommittee

dynrng

52, 79

dynamic range gain word

dynrng2

52

dynamic range gain word, ch2

dynrng2e

52

dynamic range gain word exists, ch2

dynrnge

52

dynamic range gain word exists

EA

81

emergency alert

EBU

80, 94

European Broadcasting Union

ECB

70

electronic codebook (DES cipher mode)

ECC

110

error correcting code

ECM

54, 70, 81

entitlement control message

EDE

70, 96

encrypt-decrypt-encrypt

EIA

69, 94

Electronic Industries Alliance

EIRP

82

equivalent isotropic radiated power

EIT

65, 69, 70, 79, 81, 90, 91, 92, 93

event information table

EMM

54, 65, 69, 70, 98

entitlement management message

ENG

82

electronic news gathering (in the context of this document, "ENG" includes electronic field production

ENG-RO

82

ENG receive-only site (also known as "central" receive site)

EPG

65, 69, 76, 91, 94

electronic program guide

ERP

110

effective radiated power

ES

53, 54, 81, 90, 91, 93

elementary stream

ESCR

53, 54, 91

elementary stream clock reference

ESG

153

electronic service guide

ETM

65, 69, 81, 90, 92

extended text message

ETS

80

European Telecommunication Standard

ETSI

79

European Telecommunications Standards Institute

ETT

65, 69, 81, 90, 92, 94

extended text table

exps

52

channel exponents

fbw

52

full bandwidth

fdcycod

52

fast decay code

FCC

79

Federal Communications Commission

FDM

80

frequency division multiplex

FDMA

80

frequency division multiple access

FDT

153

file delivery table

FEC

53, 80, 82, 153

forward error correction

FET-MH

153

future event table for ATSC-M/H

fgaincod

52

channel fast gain code

FIC

153

fast information channel

FIFO

80

first-in, first-out shift register

FIR

80

finite impulse response

floorcod

52

masking floor code

floortab

52

masking floor table

FLUTE

153

File Delivery over Unidirectional Transport (RFC 3926)

FM

79

frequency modulation

FPLL

54

frequency and phase-locked-loop

FRAGnkj

92

IP fragmentation buffer for fragment identifier j, multicast address k, in program element n

frmsizecod

52

frame size code

fscod

52

sampling frequency code

FSK

82

frequency-shift keying

fsnroffst

52

channel fine SNR offset

FSPL

82

free-space power loss

FTA

153

free-to-air

gainrng

52

channel gain range code

GAT

153

guide access table

GAT-MH

153

guide access table for ATSC-M/H

GF

153

Galois field

GHz

80

gigahertz (109 cycles per second)

GMSK

82

Guassian minimum shift keying

GOP

53, 54

group of pictures

GPI

85

general purpose interface

GPS

65, 69, 76, 81, 110, 153

Global Positioning System

grp

52

group in index [grp]

HANC

79

horizontal ancillary

HAVi

100

Home Audio Video Interoperability

HD

79

high-definition

HD-SD

79

high definition serial digital interface (compliant with SMPTE 292)

HDTV

53, 54, 79, 80

high-definition television

HE AAC

153

High Efficiency Advanced Audio Coding

HE AAC v2

153

High Efficiency Advanced Audio Coding version 2

HEX

80

hexadecimal notation

HPA

80

high power amplifier

HTML

70, 90, 100

Hypertext Markup Language

HTTP

96, 153

Hyper Text Transfer Protocol

HTTPS

96

Hyper Text Transfer Protocol – Secure

I/O

80

input/output

IBO

80

input back off

ICMP

96

Internet Control Message Protocol

ICP

96

interaction channel provider

ICSP

96

interactive content service provider

ID

153

identification

IDL

100

Interface Definition Language

IDR

80

intermediate data rate

IEC

53, 54, 69, 71, 80, 81, 90, 94

International Electrotechnical Commission

IEEE

71, 90, 96

Institute of Electrical and Electronics Engineers

IESS

80

Intelsat Earth Station Standard

IETF

91, 92, 94, 96, 153

Internet Engineering Task Force

IF

80

intermediate frequency

IOR

95

interoperable object reference

IP

91, 92, 94, 96, 100, 153

Internet Protocol

IPG

69

interactive program guide

IPGRMBnk

92

IP datagram buffer for kth IP multicast address in the nth program element

IPM

92, 96

IP multicast

IPsec

153

IP security

IPTV

71, 79

Internet Protocol television

IPX

91

internetwork packet exchange

IRD

79

integrated receiver/decoder (sometimes termed receiver/descrambler, but not in these systems. ATSC content is always in the "clear").

ISAN

57, 76, 153

International Standard Audiovisual Number

ISDN

96

Integrated Services Digital Network

ISI

54

intersymbol interference

ISO

53, 54, 69, 71, 80, 81, 90, 91, 94, 96, 99

International Organization for Standardization

ISP

96

Internet service provider

ITU

53, 54, 79, 85, 90, 92, 94, 96

International Telecommunication Union

ITV

96

interactive television

IV

70

initialization vector

JDK

100

Java Development Kit

JEC

54

Joint Engineering Committee (of EIA and NCTA)

JMF

100

Java Media Framework

JPEG

100

Joint Photographic Expert Group

kbps

69, 90, 95

1,000 bits per second

LAN

96

local area network

langcod

52

language code

langcod2

52

language code, ch2

langcod2e

52

language code exists, ch2

langcode

52

language code exists

LASeR

153

lightweight application scene representation

LCT

153

layered coding transport

lfe

52

low frequency effects

lfeexps

52

lfe exponents

lfeexpstr

52

lfe exponent strategy

lfefgaincod

52

lfe fast gain code

lfefsnroffst

52

lfe fine SNR offset

lfemant

52

lfe mantissas

lfeon

52

lfe on

LKFS

85

loudness, K-weighted, relative to full scale, measured with equipment that implements the algorithm specified by ITU-R BS.1770; a unit of LKFS is equivalent to a decibel

LLC-SNAP

90, 91

Logical Link Control - Sub Network Access Protocol

LMS

54

least mean squares

LNA

80

low-noise amplifier

LNB

80

low-noise block downconverter

LOS

82

line of sight

LQ

82

link quality

LSB

91, 110

least significant byte

LTKM

153

long-term key message

LTST

91, 94

long term service table

M/H

153

mobile/pedestrian/handheld

MAC

90, 92

media access control

mbps

53, 54, 80, 90, 95, 110

1,000,000 bits per second

MCPC

80

multiple channels per carrier

MD

110

maximum delay

MD5

96

message digest 5

MER

82

modulation error ratio

MGT

65, 69, 70, 81, 90, 91

master guide table

MHE

153

M/H encapsulation

MHz

69, 80

megahertz (106 cycles per second)

MIME

94, 100

Multipurpose Internet Mail Extensions

MIP

96

minimal implementation profile

mixlevel

52

mixing level

mixlevel2

52

mixing level, ch2

MMI

70

man-machine interface

MNG

100

multiple network graphics

MP@HL

53, 54

Main Profile at High Level

MP@ML

53, 54

Main Profile at Main Level

MPAA

65, 69

Motion Picture Association of America

MPE

92

multi-protocol encapsulation

MPEG

53, 54, 65, 69, 70, 71, 79, 80, 81, 90, 91, 92, 93, 94, 95, 96, 99, 110, 153

Moving Picture Experts Group; refers to standards developed by the ISO/IEC JTC1/SC29 WG11

MPEG-1

53, 54, 95

Refers to ISO/IEC standards 11172-1 (Systems), 11172-2 (Video), 11172-3 (Audio), 11172-4 (Compliance Testing), and 11172-5 (Technical Report)

MPEG-2

53, 54, 95

MPEG-2 – Refers to ISO/IEC standards 13818-1 (systems), 13818-2 (video), 13818-3 (Audio), 13818-4 (Compliance).

MRD

81, 93

MPEG-2 registration descriptor

MS

92

media stream

MSB

80, 110

most significant bit

MSK

82

minimum shift keying

MSS

82

mobile satellite service

mstrcplco

52

master coupling coordinate

MTU

90, 91, 92

maximum transmission unit

MUX

53, 80

multiplex

MVPD

79, 85

multichannel video programming distributor

MWCS

82

Miscellaneous Wireless Communications Services

N

153

number of columns in RS Frame payload

nauxbits

52

number of auxiliary bits

nbomsbf

90, 92

network byte order, most significant bit first

nchans

52

number of channels

nchgrps

52

number of fbw channel exponent groups

nchmant

52

number of fbw channel mantissas

ncplbnd

52

number of structured coupled bands

ncplgrps

52

number of coupled exponent groups

ncplmant

52

number of coupled mantissas

ncplsubnd

52

number of coupling sub-bands

nfchans

52

number of fbw channels

NIC

96

network interface card

nlfegrps

52

number of lfe channel exponent groups

nlfemant

52

number of lfe channel mantissas

NoG

153

number of M/H groups per M/H subframe

NRSS

70

National Renewable Security Standard

NRT

90, 91, 92, 94, 95

network resources table

NSAP

95

network service access point

NTP

92, 96, 153

network time protocol

NTSC

69, 79

National Television Systems Committee

NVOD

65, 69, 100

near video on demand

OBO

80

output back off

OCSP

96

On-Line Certificate Status Protocol

OCT

80

octal notation

OD

110

offset delay

OMA

153

Open Mobile Alliance

OMA-BCAST

153

Open Mobile Alliance Broadcast

OMP

110

operations and maintenance packet

OOB

65, 69

out of band

OOBE

82

out of band emissions (spurious signals)

OQPSK

81, 82

offset quadrature phase shift keying

ORB

95

object request broker

origbs

52

original bit stream

OSI

96

Open System Interconnection

OUI

90, 94, 95, 97

organization unique identifier

P

80

puncturing

P

153

number of RS parity bytes per RS frame column

PA

100

procedural application

PAE

100

Procedural Application Environment

PAT

65, 69, 80, 81, 90, 91, 92, 94, 110

program association table

PAT-E

53

A table with the same syntax as Program Association Table as defined by ISO/IEC 13818-1 transmitted using an enhanced VSB mode defined in A/53- Part 2.

PCCC

153

parallel concatenated convolutional code

PCR

53, 54, 65, 69, 70, 90, 91, 110

program clock reference

PCS

82

personal communications services

PCM

79

pulse code modulation

PDU

92

protocol data unit

PEK

153

program encryption key

pel

53, 54

pixel

PES

53, 54, 65, 69, 70, 81, 90, 91, 92, 93

packetized elementary stream

phsflg

52

phase flag

phsflginu

52

phase flags in use

PID

53, 54, 65, 69, 70, 76, 79, 81, 90, 91, 92, 93, 94, 98, 110

packet identifier

PIRD

79

professional integrated receiver/decoder (see IRD)

PKI

96

public key infrastructure

PL

153

RS frame portion length

PMT

53, 57, 65, 69, 70, 80, 81, 90, 91, 93, 94, 95

program map table

PMT-E

53

A table with the same syntax as Program Map Table as defined by ISO/IEC 13818-1 transmitted using an enhanced VSB mode defined in A/53 Part 2.

PMT-E_PID

53

A PID that identifies the Transport Stream packets that carry TS_program_map_section()s in a TS-E.

PNG

100

Portable Network Graphics

POA

79

program off sir (see A/78)

POD

97

point of deployment

POTS

96

plain old telephone service

ppm

82, 110

parts per million

PPM

85

peak program meter

PRC

153

parade repetition cycle

PRBS

80, 110

pseudo random binary sequence

PS

153

parametric stereo

PSI

53, 54, 69, 70, 81, 90

program specific information

PSIP

54, 65, 69, 70, 79, 81, 90, 91, 92, 93, 94, 95, 96

Program and System Information Protocol; a collection of tables describing virtual channel attributes, event features, and other information.

PSK

80, 82

phase shift keying

PTC

65, 69

physical transmission channel

PTS

53, 54, 81, 90, 91, 100

presentation time stamp

PU

53, 54, 90

presentation unit

QEF

80

quasi-error-free

QPSK

80, 81, 82

quadrature phase shift keying

QUAM

69, 79, 81

quadrature amplitude modulation

R

153

the number of FIC chunks per M/H frame

rbnd

52

rematrix band in index [rbnd]

RCE

100

runtime code extension

RCL

82

receive carrier level

RCU

69

remote control unit

rematflg

52

rematrix flag

rematstr

52

rematrixing strategy

RF

79, 80, 82, 110

radio frequency

RFC

91, 92, 94, 96

request for comment

RFI

80

request for information

RI

153

rights issuer

riuimsbf

110

repeated, inverted, unsigned integer, most significant bit first

riuimsbfwp

110

repeated, inverted, unsigned integer, most significant bit first, with parity

RME

153

rich media environment

RO

153

right object

ROM

54

read-only memory

roomtyp

52

room type

roomtyp2

52

room type, ch2

ROT

153

root of trust

RP

79

recommended practice

rpchof

57, 65, 69, 81, 82, 90, 98

remainder polynomial coefficients, highest order first

RRT

65, 69, 81, 90

rating region table

RRT-MH

153

rating region table for ATSC-M/H

RS

53, 80, 110, 153

Reed-Solomon

RSA

96

Rivest, Shamir, Aldeman

RTP

153

real-time transport protocol

RTT

69

ratings text table

S

153

number of padding bytes

S/N

82

signal to noise ratio

SAP

92

session announcement protocol

SAP

79

secondary audio program

SBn

91, 92, 94

smoothing buffer

sbnd

52

sub-band in index [sbnd]

SBR

153

spectral band replication

SCB1…SCB10

153

SCCC (serial concatenated convolutional coding) blocks number 1 through number 10

SCCC

153

serial concatenated convolutional code

SCM

82

single carrier modulation)

SCPC

80

single channel per carrier

SCR

53, 54

system clock reference

SCTE

65, 69, 70, 79, 81, 90, 92, 96

Society of Cable Telecommunications Engineers

SD

69, 79

standard definition

sdcycod

52

slow decay code

SDF

91, 94

service description framework

SDI

79

serial digital interface (compliant with SMPTE 259M)

SDO

97

standards development organization

SDP

92, 153

session description protocol

SDT

90,92

service description table

SDTV

53, 54, 69, 79

standard definition television

SEK

153

service encryption key

seg

52

segment in index [seg]

SFN

110

single frequency network

sgaincod

52

slow gain code

SG

153

(electronic) service guide

SGN

153

starting group number

SHA-1

96

Secure Hash Standard 1

SI

65, 90

system information

SI

69, 80, 81

service information

SIBL

153

SCCC input block length in bytes

signed int

153

signed integer

simsbf

82

signed integer, most significant bit first

skipfld

52

skip field

skipl

52

skip length

skiple

52

skip length exists

SLD

91,92, 94

service location descriptor

slev

52

surround mixing level coefficient

SLT-MH

153

service labeling table for ATSC-M/H

SMPTE

53, 54, 69, 79, 92, 94

Society of Motion Picture and Television Engineers

SMR

82

specialized mobile radio

SMT-MH

153

service map table for ATSC-M/H

SNG

80

satellite news gathering

snroffste

52

SNR offset exists

SOBL

153

SCCC output block length in bytes

SP

110

synchronization packet

SPL

85

sound pressure level in decibels referenced to 20 µN/m2

SRM

 

system renewability message

SRTP

153

Secure Real Time Protocol

SSL

96

secure socket layer

STB

79, 96

set-top box

STC

54, 100

system time clock

STD

53, 54, 65, 69, 81, 90, 94

system target decoder

STKM

153

short-term key message

STL

112

studio-to-transmitter link

STS

110

synchronization time stamp

STT

65, 69, 81, 90

system time table

STT-MH

153

system time table for ATSC-M/H

surmixlev

52

surround mix level

SVC

153

Scalable Video Coding (Annex G of ITU-T rec. H.264 | ISO/IEC 14496-10)

SVG

153

Scalable Vector Graphics

syncframe

52

synchronization frame

syncinfo

52

synchronization information

syncword

52

synchronization word

TAD

110

transmitter and antenna delay

TBD

80

to be determined

TBn

90, 91

transport buffer for data elementary stream n

TBSn

90, 92

transport buffer size for data elementary stream n

tcimsbf

110

two’s complement integer, most significant bit first

TCM

80

trellis coded modulation

TCP

96, 153

Transmission Control Protocol

TCP/IP

76, 90

Transport Control Protocol/Internet Protocol

TDAC

52

time division aliasing cancellation

TDES

70

triple DES

TDM

80

time division multiplex

TEK

153

taffic encryption key

timecod1

52

time code first half

timecod1e

52

time code first half exists

timecod2

52

time code second half

timecod2e

52

time code second half exists

TLS

96

transport layer security

TNC

79

technically non-conformant (see A/78)

TNoG

153

total number of M/H groups including all the M/H groups belonging to all M/H parades in one M/H subframe

TOA

79

transport-stream off-air (see A/78)

TOV

54

threshold of visibility

TPC

153

transmission parameter channel

TPO

82

transmitter power output

TS

65, 69, 70, 79, 81, 90, 91, 92, 93, 95, 98, 110, 112, 153

transport stream

TS-M

53, 153

The portion of TS-R that contains only all Transport Stream packets transmitted by the main mode (see A/53- Part 2.

TS-R

53

The recombined Transport Stream containing all Transport Stream packets delivered by all transmission modes (main, one-half rate and one-quarter rate) (see A/53- Part 2.

TS-E

53

The portion of TS-R that contains only all Transport Stream packets transmitted by one-half rate and/or one-quarter rate modes(see A/53- Part 2).

TS-Ea

53

The portion of TS-E that contains only all Transport Stream packets transmitted by one-half rate mode (see A/53- Part 2).

TS-Eb

53

The portion of TS-E that contains only all Transport Stream packets transmitted by one-quarter rate mode (see A/53- Part 2)

TSDT

80, 81

transport stream descriptor table

TSFS

94, 95, 96

transport stream file system

TSI

153

transport session identifier

TSID

57,69, 69, 95

transport stream identifier (digital) or transmission signal identifier (analog)

TTL

92

time to live

TV

80

television

TV BAS

82

Television Broadcast Auxiliary Service rules (Part 74, subpart f, of the FCC Rules)

TVCT

65, 69, 71, 81, 90, 94

terrestrial virtual channel table

TVPG

69

television parental guidelines

TWTA

80

traveling wave tube amplifier

TxID

82

transmitter identification signal

UDP

92, 96, 153

User Datagram Protocol

UDPnkji

92

UDP buffer for port I, fragment identifier j, IP multicast address k, in program element n

uilsBf

100

unsigned integer least significant byte first

uilsWBf

100

unsigned integer least significant word and byte first

uimsbf

57, 65, 69, 70, 80, 81, 82, 90, 92, 93, 94, 95, 97, 98, 100, 110, 153

unsigned integer, most significant bit first

uipfmsbf

110

unsigned integer plus fraction, most significant bit first

U-N

91

user to network

UMID

57

universal material identifier

unicode

65, 69, 70

Unicode™

URI

94, 95, 96, 100

uniform resource identifier

URL

69

uniform resource locator

UTC

65, 69, 76, 81, 90

Coordinated Universal Time

U-U

95

user-to-user

UUID

94, 100

universal unique identifier

VANC

79, 99

vertical ancillary

VBI

69, 79, 99

vertical blanking interval

VBS

79

vestigial sideband

VBV

53, 54, 81

video buffering verifier

VC

69

virtual channel

VCT

65, 69, 70, 71, 90, 91, 93, 94

virtual channel table

V-ISAN

57, 76

Version of an International Standard Audiovisual Number

VSB

53, 69

vestigial sideband

VU

85

volume unit

W3C

100, 153

World Wide Web Consortium

WAN

96

wide area network

WM

110

watermark

XDML

100

Extensible DTV Markup Language

XDS

79

extended data services

XML

76, 100

Extensible Markup Language

XOR

110

exclusive OR function

 
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