A METHOD AND DEVICE FOR RECOVERING INFORMATION IN INTERACTIVE DIGITAL TV SYSTEMS

摘要

The method according to the invention is mainly implemented in terminal devices of an interactive digital TV system. The method comprises a step for storing in a cache memory of the terminal device information transported in a data stream of the system. The method also comprises a characteristic step consisting in searching (E41), according to at least one predefined selection criterion, for requested information in at least one of the information carriers formed by the data stream and the cache memory. The method finds its preferred application in interactive digital TV systems compliant with the MPEG-DVB standards. Preferably, the information and/or MPEG tables are stored in the cache memory according to a structural organization similar to that of the information and/or MPEG tables in the data stream. The invention provides the application programs with optimal access to the MPEG tables and service information.