Terms and Abbreviations: I

I

I/O

input/output

IANA

Internet Assigned Numbers Authority

IBC

International Broadcasting Convention

IBP

intra-coded, bidirectional and predicted

ICMP

Internet Control Message Protocol

IDOV

Independent Demonstration of Viability (from the OMVC)

IEEE

Institute of Electrical and Electronics Engineers

IETF

Internet Engineering Task Force

IF

intermediate frequency

IFB

interruptible feedback
variant interruptible foldback

I-frames

intraframes

IGMP

Internet Group Management Protocol

IMPALA

International MHEG Promotion Alliance

IMS

IP Multimedia Subsystem

IMX

Sony’s MXF for D10 video format

Interlace scanning

Process that divides/presents each video frame as two fields

IntServ, IS

integrated services

IO

image orthicon

IOT

inductive output tube

IP

1) Internet Protocol
2) intellectual property

IPLR

IP packet loss ratio

IPR

intellectual property rights

IPTV

Internet Protocol Television

IR

infrared

IRD

integrated receiver and decoder

IRE

unit used in measuring composite video signals; derived from the Institute of Radio Engineers
examples 100 IRE, 40 IRE

ISCI

Industry Standard Coding Identification

iSCSI

Internet small computer system interface

ISDB

integrated services digital broadcasting

ISDN

integrated services digital network

ISO

1) International Organization for Standardization
2) a measurement of a digital camera's imaging sensor's sensitivity

ISP

Internet service provider

IT

information technology

ITI

Indian Telecommunications Initiatives

ITU

International Telecommunication Union
formerly International Telegraph Union

ITU-R

ITU Radiocommunication Sector (standards body committee of the ITU)

ITV

Independent Television (a group British TV companies)

iTV

interactive television