IDTV

 Improved Definition Television. A television system that offers picture quality substantially improved over conventional receivers, for signals originated in standard 525-line or 625-line format, by processing that involves the use of field store and/or frame store (memory) techniques at the receiver . One example is the use of field or frame memory to implement de-interlacing at the receiver in order to reduce interline twitter compared to that of an interlaced display . IDTV techniques are implemented entirely at the receiver and involve no change to picture origination equipment and no change to emission standards

IEEE (Institute of Electrical and Electronics Engineers)

 The Institute of Electrical and Electronics Engineers (IEEE) is the world's largest technical professional society.

Founded in 1884 by a handful of practitioners of the new electrical engineering discipline, today's Institute includes 46,000 students within a total membership of nearly 320,000 members who conduct and participate in its activities in 150 countries. The men and women of the IEEE are the technical and scientific professionals making the revolutionary engineering advances which are reshaping our world today. And today's students are the future of the profession.

The technical objectives of the IEEE focus on advancing the theory and practice of electrical, electronics and computer engineering and computer science. To realize these objectives, the IEEE sponsors nearly 800 Student Branches worldwide, as well as scholarships and awareness programs, technical conferences, symposia and local meetings; publishes nearly 25% of the world's technical papers in electrical, electronics and computer engineering; and provides educational programs to keep its members' knowledge and expertise state-of-the-art.

The main IEEE information system is in Piscataway, New Jersey, USA.

Interactive videodisc

Interactive video-disc is another video related technology, using an analog approach. It has been available since the early 1980s, and is supplied in the U.S. primarily by Pioneer, Sony, and IBM.

Interlace

 The property of conventional television frames where alternating lines of the frame represent different instances in time.

Intra coding

 Coding of a macroblock or picture that uses information only from that macroblock or picture.

I Picture (Intra-coded picture)

 A picture coded using information only from itself.

ISDN

 ISDN stands for "Integrated Services Digital Networks", and it's a CCITT term for a relatively new telecommunications service package. ISDN is basically the telephone network turned all-digital end to end, using existing switches and wiring (for the most part) upgraded so that the basic call is a 64 kbps end-to-end channel, with bit-diddling as needed. Packet and maybe frame modes are thrown in for good measure, too, in some places. It's offered by local telephone companies, but most readily in Australia, France, Japan, and Singapore, with the UK and Germany somewhat behind, and USA availability rather spotty.

A Basic Rate Interface (BRI) is two 64K bearer (B) channels and a single delta (D) channel. The B channels are used for voice or data, and the D channel is used for signaling and/or X.25 packet networking. This is the variety most likely to be found in residential service. Another flavor of ISDN is Primary Rate Interface (PRI). Inside the US, this consists of 24 channels, usually divided into 23 B channels and 1 D channel, and runs over the same physical interface as T1. Outside of the US then PRI has 31 user channels, usually divided into 30 B channels and 1 D channel. It is typically used for connections such as one between a PBX and a CO or IXC.