Harmonic Ellipse 3000, Руководство пользователя

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Glossary
Numerics
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© 2013 Harmonic Inc. 383 Ellipse 3000 r.3.0, Rev. B
Invalid video
The percentage of invalid video frames during the sampling period. If the encoder lost the
input video signal during the sampling period, it will report an invalid video value of 100 to
indicate an invalid source for all frames.
I/O
Input/Output. Refers to a connection that inputs or outputs data.
IOM Card
Input Output Modules (ProStream 1000 and Electra/Ion encoders) Cards which may have
either signal input, output, or a combination of both.
IP
Internet Protocol.
IP address
An identifier for a computer or device on an Internet Protocol (IP) network. Networks using IP
route messages based on the IP address of the destination. An IP address is a 32-bit number
written in dotted decimal notation: four 8-bit sections, separated by periods, converted from
binary to decimal. Each section is a number from zero to 255.
IRD
Integrated receiver decoder. A device that combines the capability of receiving satellite
transmissions and decoding MPEG-2 transport stream packets.
ISA
Interactive Services Architecture
ISO index value
A pointer value into the list of language abbreviations documented in ISO-639. Current
values are online at
http://www.loc.gov/standards/iso639-2/langhome.html
.
ITU
International Telecommunication Union, a United Nations organization facilitating
standardization of telecommunications and radio/television. It issues documents from either
group as “ITU-T” or “ITU-R” recommendations.
J
joint stereo
Joint stereo signals have a high degree of commonality between the left and right signals
which can improve the amount of compression.