Broadcast Markup Language, or BML, is an

XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding electronic document, documents in a format that is both human-readable and Machine-r ...

-based standard developed by Japan's

Association of Radio Industries and Businesses The , commonly known as , is a standardization organization in Japan. ARIB is designated as the center for promotion of the efficient use of the radio spectrum and the designated frequency change support agency. Its activities include those previo ...

as a data broadcasting specification for

digital television Digital television (DTV) is the transmission of television signals using Digital signal, digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an ...

broadcasting. It is a data-transmission service allowing text to be displayed on a

1seg is a mobile terrestrial digital audio/video and data broadcasting service in Japan, Argentina, Brazil, Chile, Uruguay, Paraguay, Peru and the Philippines. Service began experimentally during 2005 and commercially on April 1, 2006. It is designe ...

TV screen. The text contains news, sports, weather forecasts, emergency warnings such as

Earthquake Early Warning An earthquake early warning (EEW) system is a system of accelerometers, seismometers, communication, computers, and alarms that is devised for rapidly notifying adjoining regions of a substantial earthquake once one begins. This is not the same ...

, etc. free of charge. It was finalized in 1999, becoming ARIB STD-B24 Data Coding and Transmission Specification for Digital Broadcasting. The STD-B24 specification is derived from an early draft of

XHTML Extensible HyperText Markup Language (XHTML) is part of the family of XML markup languages which mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated. While HTML, pr ...

1.0 strict, which it extends and alters. Some subset of CSS 1 and 2 is supported, as well as

ECMAScript ECMAScript (; ES) is a standard for scripting languages, including JavaScript, JScript, and ActionScript. It is best known as a JavaScript standard intended to ensure the interoperability of web pages across different web browsers. It is stan ...

. Example BML header: Since version 1.0 in 1999, BML standard has gone through several revisions, and , it is on version 5.0. However, due to a large installed user base of receivers which only support the original 1.0 specification, broadcasters are not able to introduce new features defined in later revisions.

External links

(

ARIB The , commonly known as , is a Standards organization, standardization organization in Japan. ARIB is designated as the center for promotion of the efficient use of the radio spectrum and the designated frequency change support agency. Its activit ...

) Broadcast engineering Digital television High-definition television Industry-specific XML-based standards Interactive television ISDB Satellite television Japanese inventions Telecommunications-related introductions in 1999 {{Markup-languages-stub

See also

Further reading

External links