HDTV Video Streams

HDTV Video Streams; Provides IP-Based, Uncompressed HDTV Video Editing Environment for the Broadcasting Industry

TOKYO -- Nippon Telegraph and Telephone Corporation today announced a PC cluster-based, video stream product, named the i-Visto eXmedia server, which can simultaneously handle up to ten 1.5-Gbps of uncompressed high definition television (HDTV) video streams in real-time using an IP network. The i-Visto eXmedia server is intended for professional use in the broadcasting industry. The product's high performance will enable broadcast professionals to simplify and improve the sharing of video over IP networks.

NTT Network Innovation Laboratories developed a new PC clustering(1) process that integrates multiple general purpose PCs into a video stream server that can handle more than one gigabit of video streams using a commercially available, low-delay interconnection network.

Based on NTT's PC clustering approach, the i-Visto eXmedia server (Figure 1) can simultaneously handle up to ten, uncompressed HDTV video streams using IP, for a combined throughput of 15 Gbps. This processing capability will support up to ten users who can simultaneously retrieve or store uncompressed HDTV video materials or can concurrently process 100 high-definition, digital VTR-quality materials.