A digital television Navigator

Chengyuan Peng, Artur Lugmayr, Petri Vuorimaa

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)


Digital television is a new, interesting, and rich platform for developing next generation multimedia services. Navigator is the most important service of digital television. It acts as the main index of all services available in set-top box. In this paper, we describe the definition of a Navigator, its functionality, its information retrieval processes, and its information source based on DVB-SI (Service Information) which is multiplexed in MPEG2 Transport Streams (TS). The process of developing a Navigator in Java language is presented. A software model including navigation model, state model of a remote control, and data structures is introduced. Furthermore, a software reference model for DVB-SI demultiplexing is described. Its implementation was based on a client/server approach using the User Datagram Protocol (UDP). The development issues, performance evaluation, and future research topics are given as conclusions.

Original languageEnglish
Pages (from-to)121-141
Number of pages21
JournalMultimedia Tools and Applications
Issue number1
Publication statusPublished - 1 May 2002
MoE publication typeA1 Journal article-refereed


  • Demultiplexing
  • Digital television
  • Java
  • Navigator
  • Service information
  • Transport stream
  • Video server


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