COMPACT GRAPHICAL INTERACTIVE BROADCAST INFORMATION SYSTEM

摘要

A method and apparatus allows an information provider to broadcast a graphic al interactive information system application to a user even using a low- bandwidth transport such as the VBI. A compact protocol encapsulates graphic al information using definitions of graphical objects and resources. A scriptin g and command language is also highly compact. A reception component receives the compact protocol and displays and operates a complete graphical interactive information system application.