SIST ETS 300 472 E1:2005

Digital broadcasting systems for television, sound and data services – Specification for conveying ITU-R System B teletext in digital video broadcasting (DVB) bitstreams

Method by which ITU-R System B Teletext, also known as World System Teletext (WST), may be carried in DVB bitstreams. This transport mechanism is intended to satisfy the following requirements: 1. Support the transcoding of Teletext data into the Vertical Blanking Interval (VBI) of analogue video, compatible with existing TV receivers with Teletext decoders. 2. Maximum data rate for each Teletext service is equivalent to 16 lines per field so that the service is always suitable for transcoding into the VBI. 3. Transmission mechanism capable of transmitting subtitles with accurate timing with respect to the video, i.e. within or near frame accuracy. A more general data transport mechanism for conveying new types of data services is outside the scope of this document, but the transport syntax specified here can also be adapted for other data.

Sistemi digitalne radiodifuzije za televizijske, zvokovne in podatkovne storitve – Specifikacije za prenos teleteksta po standardu ITU-R sistem B v bitnih tokih digitalne videoradiodifuzije (DVB)

General Information

• Status: Published
• Publication Date: 31-Oct-2005
• ICS: 33.170 - Television and radio broadcasting
• Technical Committee: RES - Radio equipment and systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-2005
• Due Date: 01-Nov-2005
• Completion Date: 01-Nov-2005
• Mandate: T-304
• Ref Project: ETSI ETS 300 472 ed.1 (1994-12) - Digital Video Broadcasting (DVB); Specification for conveying ITU-R System B Teletext in DVB bitstreams