MHP(Multimedia Home Platform)

MHP(Multimedia Home Platform) is formulated by DVB alliance a standard. As one of the projects, DVB it began in 1997. The DVB - MHP not only covers application programming interface (API, and included family digital network (IHDN) and local clusters, its purpose is to standardization family platform, the successful applications for future interactive multimedia is essential. It also can be regarded as a broadcast work to interactive DVB pure natural upgrade, the TV application from analog TV business promotes the digital TV transition to television.

Development history

Multimedia family platform (MHP), which is called by a proposed the European organization, whose aim is to develop a variety of digital multimedia services can access the common platform.

In 1993 the interactive platform in digital TV on this project;

In 1997, was listed in DVB plan

In July 1998 from Java virtual machine technology is added to the MHP kernel;

February 2000 Steering Board (EIGT Steering committee) the 28th congress approved in MHP1.0 standard; add DVB

In July 2000 MHP1.0 become ETSI standards TS101 689; series of

In April 2001 MHP1.0.1 consistency test and DVB release version, DVB and ETSI center document management agreement reached MHP. MHP expert group began to develop the MHP Test Suite;

In October 2001 MHP1.0.1 for TS101 689 released ETSI V1.1.2;

November 2001 for MHP1. 1 released ETSI TS101 689 V1.1.1

2002 April Finland became the world's first through the use of MHP to achieve wireless pickupstation interactive services country;

November 2002 Streering CableLabs OCAP (Board through the comcast interactive services laboratory of the cable TV industry standard) and make the software GEM (Globally Executable MHP) in the first version;

December 2002 1.0.2 DVB through MHP Test Suite b --? The first complete MHP test kit:

January 2003 TS102 GEM for standards issued by ETS 819;

April 2003 MHP1.1.1 MHP1.0.3, DVB approval and submit to give ETSI, respectively TS101 as standard 812V1. 812V1. TS102 3.1 and standards standardized work; 2.1

June 2003 DTV standard ARIB (Japan) was in Japan's data broadcast based on the application of GEM accept environment;

In July 2003, ETSI approved release ES201 689 V1.1.1 (a standard the MHP standard version) ETSI for their opinion.

Technical characteristics

MHP mainly defines STB middleware the overall structure, transfer protocol, content formats, Java virtual machine and APIs, DVB - J safety, each layer application state and details, performance, application of automatic startup, and also define the special application signaling.

framework

MHP is defined into three layers: resources layer, system software layer and the application layer. The typical resources include: MPEG processing, layer I/O devices, CPU, storage and graphics system. System software layer of abstraction to application layer provides a visual platform, conducting an application manager (also called navigator) to manage MHP and application of MHP.

kernel

The MHP of system software, the core part -- is essentially a middleware, and other middleware is different, MHP middleware is not a private middleware, which is an open, unity of middleware. MHP standard just define some apis interface, it gives no method of realizing MHP, therefore, realize the concrete scheme MHP mainly by middleware vendors and STB manufacturer are given.

Many package provides the platform used API. Only through these designated application MHP the API access platform. In the designated with underlying resources and API between need a mapping software system.

MHP built on the basis of DVB - J. Mircosystems DVB - J including Sum of Java virtual machine company.