Glossary
Electra VS
- Version 05.10 597
User Manual
- Rev. A
I-Picture
Refer to I-Frame.
ID
Identifier
IDR
Instantaneous Decoding Refresh. IDR pictures can be decoded without
reference to previous frames.
IEC
International Electrotechnical Committee.
IGMP
Internet Group Management Protocol.
IGMP is a communication protocol used by hosts and adjacent routers on
IP networks to establish multicast group memberships.
There are three versions of IGMP, as defined by "Request for Comments"
(RFC) documents of the Internet Engineering Task Force (IETF). IGMPv1 is
defined by RFC 1112, IGMPv2 is defined by RFC 2236 and IGMPv3 was
initially defined by RFC 3376 but has since been superseded by RFC 4604.
IIS
Internet Information Services.
Web server application and set of feature extension modules created by
Microsoft for use with Microsoft Windows. IIS 7.5 supports HTTP, HTTPS,
FTP, FTPS, SMTP and NNTP.
IP
Internet Protocol.
IP Address
A 32-bit (IPv4) or 128-bit (IPv6) numerical identifier for a specific TCP/IP
host device on a network, that represents the sender or receiver of
information sent across the network.
IRD
Integrated Receiver Decoder.
The IRD is the official name for the satellite receiver, which has a built-in
decoder for unscrambling subscription channels. It is also known as
Set-Top Box for the cable.
ISO
International Standards Organization.
ITU-R
International Telecommunications Union - Radio.
Formerly CCIR. Deals with the standardization of wireless communication.
ITU-T
International Telecommunications Union - Telecommunications.
Formerly CCITT. Produces global telecommunication standards, and
defines tariff and accounting principles.
Joint Stereo
An audio mode in which the left and right channels of audio are encoded
into one channel. This mode is used to reduce bandwidth needs, and thus
improve compression efficiency.
JPEG
Joint Photographic Experts Group.
Name of the committee that created the JPEG standard (and also other
standards). The JPEG standard specifies the codec, which defines how a
still image is compressed into a stream of bytes and decompressed back
into an image.
LAN
Local Area Network.
A local area network is a network that connects computers and devices in
a limited geographical area such as home, school, computer laboratory or
office building.
LATM
Low-overhead Audio Transport Multiplex.
LATM is part of the method to encapsulate HE-AAC audio into transport
stream.
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