Method for content delivery involving a policy database

摘要

The present invention comprises a content delivery system for delivering content to clients. The content delivery system comprises at least one mobile object adapted to be executed on the content delivery system and on other content delivery systems or multimedia devices adapted for mobile objects. Each mobile object comprises a media file and is further adapted to determine the capabilities of the other content delivery systems or multimedia devices and to monitor data related to the clients' access of the media file. The content delivery system also comprises a transcoder unit for transcoding the media file to another media file prior sending it to the other content delivery system or multimedia device. The invention solves problems that can arise when sending large media files to content delivery systems or multimedia devices having limited capabilities.

主权项

1. A first content delivery system for delivering content to at least one client, said first content delivery system comprising:
a processor; a memory area, and at least one mobile object adapted to be stored in the memory area and to be executed in the first content delivery system and in at least one second content delivery system and where the mobile object comprises the following parts:
a first media file accessible by clients;a policy data base; andexecution logic comprising program code and a data area where the data area comprises client access data related to the clients' access of the first media file and where the execution logic is adapted to determine capabilities of the second content delivery system and to monitor the client access data, to interrogate the policy data base, to copy the mobile object excluding the first media file to the second content delivery system when certain conditions stored in the policy data base are met by the client access data and create a reference to the copied mobile object in the mobile object; and wherein the first content delivery system further comprises a transcoder unit, adapted to transcode the first media file into a second media file prior to sending the second media file to the copied mobile object in the second content delivery system.