| 摘要 |
A method for forcing a terminal to perform an action, and a corresponding terminal and public table. A system broadcasts a public table comprising code for the action. The terminal receives the table, and extracts and executes the code. In a preferred embodiment, the system is a MPEG system and the terminal a decoder. The MPEG broadcast system inserts code into a conditional access table or a programme map table and broadcasts it. The action is advantageously a reset of the decoder which, when it is switched on again, automatically makes it download the latest version of applicable code, such as the operating system. An advantage is that the system operator can make the decoder perform actions, such as upgrading to a newer software version without user interaction.
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