Technology - Broadcasting - Datacasting, Teletext, Captioning (Archived)


This report gives a background briefing on datacasting, teletext and captioning. A brief history and description of the technologies are given, together with a description of emerging trends in these fields. A description is also given of the v-chip, which was intended to provide parental control over the programs available on the family TV by screening out pornography, violence etc, together with its uncertain development. With Digital free-to-air TV, datacasting will get another life as new providers will start delivering new interactive applications.

Table of Contents

  • 1. Synopsis
  • 2. Datacasting
    • 2.1 Introduction
      • 2.1.1 Brief history
      • 2.1.2 The technology
    • 2.2 Digital datacasting
      • 2.2.1 Use of Hi Definition TV
      • 2.2.2 The technologies
    • 2.3 Video programming delivery
    • 2.4 Ill-fated V-Chip
    • 2.5 New datacasting initiatives
  • 3. Teletext
    • 3.1 Introduction
    • 3.2 PC-teletext
    • 3.3 Interactive teletext
    • 3.4 Hybrids
      • 3.4.1 Intercast
    • 3.5 Broadcast Online TV (BOT)
      • 3.5.1 Many uses for new services
    • 3.6 Teletext on your mobile phone
  • 4. Captioning and subtitles

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Number of pages 9

Status Archived

Last updated 1 Oct 2002
Update History

Analyst: Kylie Wansink

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